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Dr. John Dennis Allendorf, MD

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Specializes in: General Surgery and Surgical Oncology (Cancer Surgery)

Columbia University, College of Physicians and Surgeons (1997)

Professional interests include: pancreatic cancer, cancer, thyroid nodules, and more.

120 Mineola Boulevard Suite 320
Mineola, NY 11501

(516) 663-3300

Dr. John Dennis Allendorf, MD is a general surgeon in Mineola, NY specializing in general surgery and surgical oncology (cancer surgery). He graduated from Columbia University, College of Physicians and Surgeons in 1997 and has 27 years of experience. Dr. John Dennis Allendorf, MD is affiliated with New York University and NYU Langone Health.

Office Locations

Address:

120 Mineola Boulevard Suite 320
Mineola, NY 11501

Some issues Dr. John Dennis Allendorf, MD can help you with:

Adrenalectomy (Adrenal Surgery)

Adrenalectomy is a surgical procedure to remove the adrenal glands, which lie above each kidney. The adrenal glands are responsible for producing hormones that are necessary for bodily functions, such as the regulation of blood pressure and metabolism. If the adrenal glands overproduce certain hormones, or if a tumor grows on them, removal of the glands is a treatment option.

Adrenal surgery can be open or laparoscopic. Laparoscopic adrenalectomy is a minimally invasive procedure that inserts a thin tube with a camera (laparoscope) through several small incisions on the abdomen. The surgeon uses the laparoscope to guide the procedure and is able to access and remove adrenal glands through the small incisions. Laparoscopic adrenal surgery lasts approximately 1-2 hours.

Laparoscopic adrenalectomy is associated with shorter recovery periods, reduced risk of infection, and smaller scars. Although these factors may be desirable, the location of the tumor, its size, and the severity of the condition may require that an individual instead undergo open surgery. An open adrenalectomy is typically done for larger adrenal tumors and requires a single, large incision on the abdomen. Open adrenal surgery takes around 2-4 hours.

Following the operation, patients will remain in the hospital for 1-2 days for a laparoscopic adrenalectomy or 3-5 days for an open adrenalectomy. Patients will likely have a liquid diet immediately after their surgery, but should be able to return to solid foods after a day. If both of the glands are removed, patients will be given drug therapy to replace the hormones they produced.

Parathyroid Surgery

Parathyroid surgery is a procedure done to identify and remove diseased parathyroid glands. These tiny glands in the neck regulate calcium levels in the body. Occasionally, one or more of the parathyroid glands can become hyperactive, swelling and causing too much calcium to be moved from the bones to the bloodstream. This is called hyperparathyroidism, and it can cause problems including weakness, nervous system disorders, and kidney problems. To treat hyperparathyroidism, overactive parathyroid glands are removed.

One kind of parathyroid surgery is called bilateral neck exploration. The surgeon finds and looks at all of the parathyroid glands on both sides of the neck, visually identifying any that are diseased and removing them. Minimally invasive, or focused, parathyroidectomy is done to remove a single diseased gland. The gland causing problems is identified before surgery using localization techniques such as hormonal or radiology testing. Since in most cases only one gland is causing problems, focused parathyroidectomy is a common alternative to bilateral neck exploration. Both procedures are safe and effective.

In the rare case that all four glands are diseased, the surgeon will either remove three and a half glands and leave one half in place, or all four will be removed and part of one gland will be transplanted into the forearm. This is done to keep calcium levels where they should be.

After surgery, patients will have a bandage on their neck and a sore throat. Patients may only want liquids or very soft food for the first day, and thy may be asked to take calcium supplements for a while until their remaining parathyroid glands begin functioning well again. Recovery is fairly quick, and within a few days patients should be feeling like themselves again.

Thyroid Surgery

Thyroid surgery is a procedure to remove all or part of the thyroid gland. The thyroid is a small, butterfly-shaped gland in the lower neck that regulates the hormones that manage metabolism. Thyroid surgery, also known as thyroidectomy, treats thyroid disorders such as hyperthyroidism (overactive thyroid), hypothyroidism (underactive thyroid), goiters (noncancerous thyroid inflammation), and thyroid cancer. It may also be used to remove thyroid nodules or cysts that have a risk of becoming cancerous.

Both hypothyroidism and goiters are caused by an autoimmune reaction where the body produces antibodies that attack the thyroid cells for unknown reasons. The thyroid reacts by releasing too little or too much T3 and T4 thyroid hormones, impairing thyroid function and causing irregular metabolism. Goiters develop from the autoimmune reaction causing continued antibody damage to the thyroid over time. Thyroid goiters are large, swollen lumps that can be felt near the base of the neck. Obstructive goiters can cause pain, coughing, and abnormal breathing. Hypothyroidism may also be caused by iodine deficiency, as iodine is needed to produce thyroid hormones.

The exact cause of thyroid cancer and thyroid nodules or cysts is unknown. While thyroid cancer and thyroid nodules or cysts can occur in individuals with thyroid disorders, they are not associated with a malfunctioning thyroid.

Physicians may prescribe thyroid surgery if blood tests reveal patients' thyroid stimulating hormones (TSA) are outside of the acceptable range, indicating a malfunctioning thyroid. Thyroid biopsies (tissue samples) and tests for thyroid-attacking antibodies are also criteria for surgery.

An ENT or general surgeon performs thyroid surgery. While a patient is placed under anesthesia, the surgeon makes an incision at the center of the neck and removes the thyroid gland. Two alternative methods of thyroid surgery are transoral (incision through the mouth) and endoscopic, where a surgeon operates a video camera for live footage to help guide the removal process.

Thyroid surgery requires minimal aftercare. Most patients recover quickly and resume normal activities within a few days of surgery. However, thyroid surgery patients must take daily synthetic thyroid medication (levothyroxine) for life to replace their removed thyroid.

catheterization	10
doctor visit	125
hospital care	24
inpatient care	24

**Gender**
Male	72
Female	67

**Ethnicity**
Non-Hispanic White	117
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	58
From 75 to 84	49
85 and over	15
Less than 65	17

Hypertension	75
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	50
Depression	14
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	22
Chronic Obstructive Pulmonary Disease	16
Diabetes	43
Dementia	8
Cancer	22

abdominal imaging	16
aspiration	12
catheterization	12
diagnostic procedures	12
doctor visit	150
hospital care	37
image guided procedures	12
inpatient care	37
minimally invasive procedures	12
minor procedures	12
ultrasound (sonogram)	16

**Gender**
Male	79
Female	93

**Ethnicity**
Non-Hispanic White	142
Black	13
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	79
From 75 to 84	50
85 and over	24
Less than 65	19

Hypertension	75
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	48
Depression	13
Chronic Kidney Disease	25
Asthma	14
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	20
Diabetes	51
Dementia	0
Cancer	27

abdominal imaging	11
catheterization	25
doctor visit	239
hospital care	77
inpatient care	77
ultrasound (sonogram)	11

**Gender**
Male	212
Female	304

**Ethnicity**
Non-Hispanic White	412
Black	56
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	238
From 75 to 84	176
85 and over	56
Less than 65	46

Hypertension	75
High Cholesterol	71
Stroke	8
Ischemic Heart Disease	49
Depression	23
Chronic Kidney Disease	32
Asthma	16
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	27
Chronic Obstructive Pulmonary Disease	18
Diabetes	47
Dementia	9
Cancer	26

abdominal surgery	8
catheterization	30
doctor visit	213
endocrine surgery	23
gastrointestinal procedures	10
hospital care	44
inpatient care	44
neck surgery	13
open surgery	10

**Gender**
Male	123
Female	144

**Ethnicity**
Non-Hispanic White	226
Black	18
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	132
From 75 to 84	86
85 and over	38
Less than 65	11

Hypertension	75
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	47
Depression	17
Chronic Kidney Disease	42
Asthma	17
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	27
Chronic Obstructive Pulmonary Disease	13
Diabetes	50
Dementia	13
Cancer	26

abdominal surgery	15
aspiration	13
catheterization	12
diagnostic procedures	13
doctor visit	243
endocrine surgery	40
gastrointestinal procedures	17
hospital care	31
image guided procedures	13
inpatient care	31
minimally invasive procedures	13
minor procedures	13
neck surgery	23
open surgery	17

**Gender**
Male	112
Female	147

**Ethnicity**
Non-Hispanic White	209
Black	22
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	131
From 75 to 84	87
85 and over	19
Less than 65	22

Hypertension	75
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	45
Depression	20
Chronic Kidney Disease	39
Asthma	9
Osteoperosis	12
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	16
Diabetes	48
Dementia	10
Cancer	19

abdominal surgery	46
dissection	17
doctor visit	166
endocrine surgery	26
excision	17
gastrointestinal procedures	12
hospital care	25
inpatient care	25
lymph node procedures	17
neck surgery	14
open surgery	12

**Gender**
Male	68
Female	141

**Ethnicity**
Non-Hispanic White	174
Black	13
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	106
From 75 to 84	67
85 and over	22
Less than 65	14

Hypertension	75
High Cholesterol	71
Stroke	0
Ischemic Heart Disease	42
Depression	22
Chronic Kidney Disease	48
Asthma	9
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	19
Chronic Obstructive Pulmonary Disease	16
Diabetes	51
Dementia	7
Cancer	22

abdominal surgery	28
blood draw	27
catheterization	16
dissection	15
doctor visit	224
excision	15
hospital care	52
inpatient care	52
lymph node procedures	15

**Gender**
Male	91
Female	159

**Ethnicity**
Non-Hispanic White	204
Black	21
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	69
85 and over	30
Less than 65	21

Hypertension	75
High Cholesterol	72
Stroke	6
Ischemic Heart Disease	43
Depression	25
Chronic Kidney Disease	39
Asthma	12
Osteoperosis	14
Atrial Fibrilation	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	19
Diabetes	42
Dementia	10
Cancer	21

abdominal surgery	9
blood draw	45
dissection	11
doctor visit	180
endocrine surgery	19
excision	11
hospital care	35
inpatient care	35
lymph node procedures	11
neck surgery	20

**Ethnicity**
Non-Hispanic White	168
Black	15
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	74
85 and over	24
Less than 65	12

Hypertension	75
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	43
Depression	18
Chronic Kidney Disease	38
Asthma	10
Osteoperosis	16
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	43
Dementia	9
Cancer	19

abdominal surgery	39
blood draw	158
dissection	28
doctor visit	467
endocrine surgery	65
excision	28
gastrointestinal procedures	12
hospital care	17
inpatient care	17
lymph node procedures	28
neck surgery	53
open surgery	12

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. John Dennis Allendorf, MD for Medicare patients.

The highest averages for the top procedures that Dr. John Dennis Allendorf, MD treated as a general surgeon in Mineola, NY were blood draw, inpatient care, hospital care and endocrine surgery.

abdominal imaging	13
abdominal surgery	25
aspiration	12
blood draw	76
catheterization	17
diagnostic procedures	12
dissection	17
doctor visit	225
endocrine surgery	34
excision	17
gastrointestinal procedures	12
hospital care	38
image guided procedures	12
inpatient care	38
lymph node procedures	17
minimally invasive procedures	12
minor procedures	12
neck surgery	24
open surgery	12
ultrasound (sonogram)	13

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. John Dennis Allendorf, MD.

**Gender**
Male	84
Female	118

**Ethnicity**
Black / African American	16
Asian / Pacific Islander	0
Non-Hispanic White	165
Native American / Alaskan Native	0
Hispanic	3
Other	0

**Age**
75 to 84	65
85 and over	22
Less than 65	16
65 to 74	97

Average of Total of Conditions of Medicare patients treated by Dr. John Dennis Allendorf, MD From 2013 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. John Dennis Allendorf, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	60
High Cholesterol	55
Stroke	1
Ischemic Heart Disease	36
Depression	15
Chronic Kidney Disease	29
Asthma	9
Osteoporosis	8
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	37
Atrial Fibrillation	10
Cancer	18
Dementia	6

Education & Training

Dr. John Dennis Allendorf, MD graduated from Columbia University, College of Physicians and Surgeons in 1997. He completed residency at New York-Presbyterian Hospital. He is certified by the American Board of Surgery - General Surgery and has a state license in New York.

Medical School: Columbia University, College of Physicians and Surgeons (1997)

Residency: New York-Presbyterian Hospital (2002)

Board Certification: American Board of Surgery - General Surgery (2003)

Licensed In: New York

Affiliations & Hospitals

Dr. John Dennis Allendorf, MD is associated with these hospitals and organizations:

New York University

NYU Langone Health

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. John Dennis Allendorf, MD appears to accept the following insurance providers: HIP EPO, HIP Access II, HIP Access I, MagnaCare PPO, Humana Medicare Advantage, Private Healthcare Systems (PHCS), BlueCross BlueShield of Florida, CIGNA Open Access, United Healthcare PPO, United Healthcare POS, United Healthcare Indemnity, United Healthcare HMO, United Healthcare EPO, United Healthcare Choice, Aetna Open Access HMO, Vytra HMO, Healthfirst Medicaid, TRICARE, Anthem, Aetna PPO, Aetna HMO, Healthfirst Medicare, Blue Cross Blue Shield Medicare HMO, Aetna Open Access EPO, AARP, WellCare Medicare, WellCare, Medicare Part B, United Healthcare Medicare, Medicare Advantage, United Healthcare, Medicaid, Humana, Cigna, 1199SEIU, Guardian, Fidelis Care, HIP PPO, HIP POS, HIP HMO, Aetna, Aetna Medicare, HIP Child Health Plus, MultiPlan PPO, MultiPlan, GHI Medicare Supplement, United Healthcare Navigate, Aetna POS, First Health PPO, Great-West Healthcare HMO, Aetna Indemnity, Great-West Healthcare, Golden Rule, Community Care Network (CCN), Trustmark , Beech Street PPO, Kaiser Permanente, GHI HMO, CIGNA PPO, Group Health Incorporated (GHI), EmblemHealth, CIGNA HMO, CIGNA Indemnity, Healthfirst Child Health Plus, Medicaid Managed Care, TriWest, Blue Cross Blue Shield HMO, Blue Cross Blue Shield POS, Blue Cross Blue Shield EPO, Local 1199 PPO, Blue Cross Blue Shield Indemnity, US Family Health Plan, UnitedHealthcare, Blue Cross Blue Shield PPO, Railroad Medicare, GEHA, BCBS PPO - Empire PPO (Sunset Park/Family Health Center Employees), BCBS Healthplus Special Needs, BCBS PPO/EPO Small Group, Teamsters Allied Benefits, Healthfirst Green Leaf Exchange, Apwu Health Plan, Christian Brothers Services, Qualcare Inc, BCBS EPO - Empire EPO (Sunset Park/Family Health Center Employees), HIP Prime Silver Exchange, Healthfirst Essential Plan 1 & 2, Insurance Design Administrators, Health Net of California, Global Excel, Healthfirst Silver Leaf Exchange, BCBS Healthplus Essential Plan 4, BCBS Healthplus Essential Plan 3, BCBS Healthplus Essential Plan 2, BCBS Healthplus Essential Plan 1, American Plan Administrators, HIP Prime Platinum Exchange, BCBS Local 32BJ Employees, Healthfirst Platinum Leaf Exchange, HIP Prime Gold Exchange, Healthfirst Gold Total, Pro, Plus EPO, AXA Assistance USA, Fiserv Health, Mutual of Omaha, UMR, VillageCare, BCBS Mediblue Medicare PPO, BCBS Healthplus Gatekeeper exchange, BCBS EPO (LICH Employees), Screen Actors Guild, HIP Prime Silver, HIP Prime Bronze Exchange, Partners Health Plan FIDA, Meritain Health, HIP VIP Medicare Bold, Administrative Concepts, HIP Bridge, Healthfirst Silver Total, Pro, Plus EPO, Connecticare Bridge, BCBS PPO (LICH Employees), BCBS Healthplus NY Child Health Plus NY, BCBS EPO - Empire NYU Care (NYU Langone Employees), NY Fire Department - WTC, HIP Prime Bronze, Healthfirst Personal Wellness Plan, BCBS Blue Access EPO Small Group, BCBS Healthplus Mediblue Advantage, Connecticare Commercial, HIP Prime Gold, Healthfirst Platinum Total, Pro, Plus EPO, Health Republic of New Jersey, Nippon Life Ins Co, Healthfirst Essential Plan 3 & 4, HIP VIP Medicare Prime, New York Hotel Trades, HIP Prime Basic Exchange, Global Health, Healthfirst Bronze Leaf Exchange, HIP Prime Platinum, Partners Health Plan Medicare, NYS Health Insurance Plan - The Empire Plan, Excelsior Plan, NY Student Employee Health Plan, World Trade Center - Sedgwick, US Life Insurance Company, BCBS Blue Access PPO Large Group, BCBS EPO - Empire EPO (NYU Langone Employees), Oxford Health Plans Liberty, Wlny-TV Inc., BCBS EPO - Empire NYU Care (Sunset Park/Family Health Center Employees), Hamaspik Choice Medicare DSNP, Medicare Part A and B, Healthfirst Gold Leaf Exchange, BCBS PPO (BlackRock Employees), Healthfirst Bronze Total, Pro, Plus EPO, BCBS Mediblue Select HMO/Extra HMO, IUOE Local 14-14B, Chesterfield Resources Inc, HIP Medicare Supplement, Diversified Administration Corporation, VNS NY Choice Select Health, WellNet, Bind Benefits inc, Health And Recovery Plan (Harp), BCBS EPO (BlackRock Employees), HIP Prime Catastrophic Exchange, Allied, Oxford Metro, Empire Mediblue Healthplus Dual, Qualcare Direct, Oxford Health Plans Freedom, Professional Benefit Admin, BCBS Blue Access GEPO Small Group, Wellfleet-NYU Student, Starmark, BCBS Blue Access EPO Large Group, Longevity Health Plan Medicare, WTC Health Program and BCBS Federal Program.

Insurance Accepted by Provider includes:

According to our sources, Dr. John Dennis Allendorf, MD accepts the following insurance providers:

HIP EPO

HIP Access II

HIP Access I

MagnaCare PPO

Humana Medicare Advantage

Private Healthcare Systems (PHCS)

BlueCross BlueShield of Florida

CIGNA Open Access

United Healthcare PPO

United Healthcare POS

United Healthcare Indemnity

United Healthcare HMO

United Healthcare EPO

United Healthcare Choice

Aetna Open Access HMO

Vytra HMO

Healthfirst Medicaid

TRICARE

Anthem

Aetna PPO

Aetna HMO

Healthfirst Medicare

Blue Cross Blue Shield Medicare HMO

Aetna Open Access EPO

AARP

WellCare Medicare

WellCare

Medicare Part B

United Healthcare Medicare

Medicare Advantage

United Healthcare

Medicaid

Humana

Cigna

1199SEIU

Guardian

Fidelis Care

HIP PPO

HIP POS

HIP HMO

Aetna

Aetna Medicare

HIP Child Health Plus

MultiPlan PPO

MultiPlan

GHI Medicare Supplement

United Healthcare Navigate

Aetna POS

First Health PPO

Great-West Healthcare HMO

Aetna Indemnity

Great-West Healthcare

Golden Rule

Community Care Network (CCN)

Trustmark

Beech Street PPO

Kaiser Permanente

GHI HMO

CIGNA PPO

Group Health Incorporated (GHI)

EmblemHealth

CIGNA HMO

CIGNA Indemnity

Healthfirst Child Health Plus

Medicaid Managed Care

TriWest

Blue Cross Blue Shield HMO

Blue Cross Blue Shield POS

Blue Cross Blue Shield EPO

Local 1199 PPO

Blue Cross Blue Shield Indemnity

US Family Health Plan

UnitedHealthcare

Blue Cross Blue Shield PPO

Railroad Medicare

GEHA

BCBS PPO - Empire PPO (Sunset Park/Family Health Center Employees)

BCBS Healthplus Special Needs

BCBS PPO/EPO Small Group

Teamsters Allied Benefits

Healthfirst Green Leaf Exchange

Apwu Health Plan

Christian Brothers Services

Qualcare Inc

BCBS EPO - Empire EPO (Sunset Park/Family Health Center Employees)

HIP Prime Silver Exchange

Healthfirst Essential Plan 1 & 2

Insurance Design Administrators

Health Net of California

Global Excel

Healthfirst Silver Leaf Exchange

BCBS Healthplus Essential Plan 4

BCBS Healthplus Essential Plan 3

BCBS Healthplus Essential Plan 2

BCBS Healthplus Essential Plan 1

American Plan Administrators

HIP Prime Platinum Exchange

BCBS Local 32BJ Employees

Healthfirst Platinum Leaf Exchange

HIP Prime Gold Exchange

Healthfirst Gold Total, Pro, Plus EPO

AXA Assistance USA

Fiserv Health

Mutual of Omaha

UMR

VillageCare

BCBS Mediblue Medicare PPO

BCBS Healthplus Gatekeeper exchange

BCBS EPO (LICH Employees)

Screen Actors Guild

HIP Prime Silver

HIP Prime Bronze Exchange

Partners Health Plan FIDA

Meritain Health

HIP VIP Medicare Bold

Administrative Concepts

HIP Bridge

Healthfirst Silver Total, Pro, Plus EPO

Connecticare Bridge

BCBS PPO (LICH Employees)

BCBS Healthplus NY Child Health Plus NY

BCBS EPO - Empire NYU Care (NYU Langone Employees)

NY Fire Department - WTC

HIP Prime Bronze

Healthfirst Personal Wellness Plan

BCBS Blue Access EPO Small Group

BCBS Healthplus Mediblue Advantage

Connecticare Commercial

HIP Prime Gold

Healthfirst Platinum Total, Pro, Plus EPO

Health Republic of New Jersey

Nippon Life Ins Co

Healthfirst Essential Plan 3 & 4

HIP VIP Medicare Prime

New York Hotel Trades

HIP Prime Basic Exchange

Global Health

Healthfirst Bronze Leaf Exchange

HIP Prime Platinum

Partners Health Plan Medicare

NYS Health Insurance Plan - The Empire Plan, Excelsior Plan, NY Student Employee Health Plan

World Trade Center - Sedgwick

US Life Insurance Company

BCBS Blue Access PPO Large Group

BCBS EPO - Empire EPO (NYU Langone Employees)

Oxford Health Plans Liberty

Wlny-TV Inc.

BCBS EPO - Empire NYU Care (Sunset Park/Family Health Center Employees)

Hamaspik Choice Medicare DSNP

Medicare Part A and B

Healthfirst Gold Leaf Exchange

BCBS PPO (BlackRock Employees)

Healthfirst Bronze Total, Pro, Plus EPO

BCBS Mediblue Select HMO/Extra HMO

IUOE Local 14-14B

Chesterfield Resources Inc

HIP Medicare Supplement

Diversified Administration Corporation

VNS NY Choice Select Health

WellNet

Bind Benefits inc

Health And Recovery Plan (Harp)

BCBS EPO (BlackRock Employees)

HIP Prime Catastrophic Exchange

Allied

Oxford Metro

Empire Mediblue Healthplus Dual

Qualcare Direct

Oxford Health Plans Freedom

Professional Benefit Admin

BCBS Blue Access GEPO Small Group

Wellfleet-NYU Student

Starmark

BCBS Blue Access EPO Large Group

Longevity Health Plan Medicare

WTC Health Program

BCBS Federal Program

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General Payments

These charts describe general payments received by Dr. John Dennis Allendorf, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Plasma Surgical, Inc.	$1,575 PlasmaJet $1,575
AbbVie Inc.	$366 Creon $366
AbbVie, Inc.	$284 Creon $284
Hospira Worldwide, Inc.	$59 Precedex Dexmedetomidine HCl in 0.9 percent Sodium Chloride Injec $43	Dexmedetomidine Hydrochloride Injection Precedex 100 mcg $17
Avanos Medical	$37 ON-Q PUMP AND ACCESSORIES $37
Other	$167 GATTEX $32	PICO Single Use Negative Pressure Wound Therapy $22	ZENPEP $20	MARQUEE $19	Hemoblast $17	Other $56

**Types of Payments**
Consulting Fee	$1,500
Food and Beverage	$902
Travel and Lodging	$75
Education	$12

Research Payments

Dr. John Dennis Allendorf, MD has received 1 research payments totaling $250.

Biography

Dr. John Allendorf is a general surgery and surgical oncology (cancer surgery) specialist in Mineola, NY. His clinical interests include adrenalectomy (adrenal surgery), thyroid cancer, and sentinel lymph node biopsy (SLNB). Dr. Allendorf is professionally affiliated with NYU Langone Medical Center. After attending Columbia University, College of Physicians and Surgeons for medical school, he completed his residency training at New York-Presbyterian Hospital. He can take Trustmark, Anthem, Blue California, and more.