Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > PA Providers

Dr. Mark Edward Schadt, MD

Accepting New Patients

(209 Ratings)

Specializes in: General Surgery

Thomas Jefferson University, Jefferson Medical College (1985)

Professional interests include: thyroid problems, laparoscopic surgery

5325 Northgate Drive Suite 204
Bethlehem, PA 18017

(484) 822-5660

Dr. Mark Edward Schadt, MD is a general surgeon in Bethlehem, PA specializing in general surgery. He graduated from Thomas Jefferson University, Jefferson Medical College in 1985 and has 41 years of experience. Dr. Mark Edward Schadt, MD is affiliated with St. Luke's University Health Network and ST LUKES PHYSICIAN GROUP INC.

Office Locations

5325 Northgate Drive Suite 204
Bethlehem, PA 18017

open_in_new

Some issues Dr. Mark Edward Schadt, MD can help you with:

Laparoscopic Surgery

Laparoscopic surgery is a kind of minimally invasive surgery using a thin, narrow tube called a laparoscope. Usually performed on the abdomen or the pelvic region, the surgeon makes a few very small incisions instead of one large one.

During the procedure, the surgeon inserts the laparoscope, which contains a light and camera that allows the surgeon to see what is happening inside the body. Then tiny tools are placed through the small openings and used to perform the surgery.

The most common laparoscopic surgery is gallbladder removal, but laparoscopic surgery may also be used for the removal of a kidney or appendix, to treat certain cysts and tumors, for bariatric surgery, for some GERD treatments, or for hernia repairs, among others.

Because laparoscopic surgery only uses a few tiny incisions, the scars are minimal and recovery is easier than with open surgery.

Thyroid Problems

Thyroid problems are a group of conditions that alter hormone regulation and metabolism. The thyroid is a small, butterfly-shaped gland located in the lower neck, just below the Adam's apple (laryngeal prominence) and larynx (voice box). Despite its small size, the thyroid has an outsized effect on the body by regulating hormones that control metabolism. Metabolism is the body's process of converting consumed food into fuel to power the entire body. Heart rate, weight, cholesterol, body temperature, and even physical growth and development are all affected by the metabolism.

When the thyroid malfunctions, the body is unable to properly process and allocate energy. Thyroid problems, such as hyperthyroidism (overactive thyroid) and hypothyroidism (underactive thyroid), cause irregular metabolism. In some cases, the body produces antibodies that attack the thyroid cells for unknown reasons. The damaged thyroid responds by releasing either too little or too much T3 and T4 thyroid hormones. Thyroid malfunctions may also arise from genetic causes or iodine deficiency. Thyroid problems may include:

Hashimoto's thyroiditis, an autoimmune disease that causes hypothyroidism
Graves' disease, an autoimmune disease that causes hyperthyroidism
Goiter
Thyroid nodule
Thyroid cancer

Hashimoto's is the leading cause of hypothyroidism, which is when the thyroid does not produce enough hormones to stimulate adequate metabolism. The condition is diagnosed by blood tests that measure TSH (thyroid stimulating hormone) and detect Hashimoto's antibodies. Symptoms of hypothyroidism include sluggish metabolism, inflammation, fatigue, weight gain, brittle hair, dry skin, and sensitivity to cold. To supplement impaired thyroid function, patients with Hashimoto's are typically prescribed synthetic thyroid hormone pills. Such patients may need to consume synthetic thyroids for the rest of their lives. Other treatments may include dietary changes, such as the avoidance of certain foods and medication to reduce inflammation. Frequent blood tests can inform patients if their TSH levels are within a normal range.

Grave's disease is most frequently the cause of hyperthyroidism, which is when the thyroid produces too many hormones, overstimulating one's metabolism. The condition is also diagnosed by blood tests that measure TSH and detect Grave's antibodies. Elevated heart rate, high blood pressure, sweating, bulging eyes, and weight loss are common symptoms of hyperthyroidism. Treatments for hyperthyroidism include oral radioactive iodine, which slowly shrinks the thyroid, slowing the production of excess thyroid hormone. Other anti-thyroid medications such as methimazole (Tapazole) also reduce the production of thyroid hormones. Blood pressure medications known as beta blockers can ease the increased heart rate caused by hyperthyroidism. If treatments are unsuccessful, patients may be prescribed a thyroidectomy, or surgery to remove part or all of the thyroid. Some patients with hyperthyroidism may require ophthalmological (eye medicine) treatments such as eye drops, prednisone, and surgery to reduce eye swelling and bulging.

Untreated thyroid disorders frequently lead to goiters or thyroid nodules. A thyroid goiter is a large lump that can be felt near the base of the neck and is made of swollen thyroid tissue or nodules (excess cell growth). Nodules and goiters are diagnosed by CT scan or ultrasound. Obstructive goiters can cause pain, coughing, and abnormal breathing. The most common cause of goiters is hyperthyroidism (overactive thyroid). However, Hashimoto's is also known to cause goiters or nodules. Goiters develop from continued damage from antibodies to the thyroid over time. At times, a goiter can result from a cancerous thyroid tumor. Most goiters and nodules are themselves benign.

The exact causes of thyroid cancer are unknown. People who develop thyroid cancer may or may not have another thyroid problem such as Hashimoto's or Grave's disease. Symptoms of thyroid cancer include a nodule that can be felt on the neck, hoarseness, difficulty swallowing, swelling in the neck, and neck and throat pain. CT and MRI scans are used to diagnose thyroid cancer. There are four types of thyroid cancer which vary in intensity. Thyroidectomy (thyroid removal surgery) is usually prescribed to treat thyroid cancer.

Thyroid problems are often long-term conditions that require some form of treatment. With regular monitoring and medication, many people with thyroid problems are able to lead active and fulfilling lives.

In The News

“The ease of sewing with the robot shaves about a half-hour off the operation, said Mark Schadt, another St. Luke s surgeon who has operated with the robot.”—"Leo the robot does surgery ** St. Luke s $1 million breakthrough assists doctors in tiny moves.", The Morning Call, January 2002

Noteworthy Medicare Patient Procedures Performed by Dr. Mark Edward Schadt, MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Volume:

hernia surgery

open inguinal hernia repair

In 2023, Dr. Mark Edward Schadt, MD performed more hernia surgery, and open inguinal hernia repair procedures for Medicare patients than 95% of providers in related specialties within Pennsylvania.

Top 25%

By Volume:

inpatient hospital care

In 2012, Dr. Mark Edward Schadt, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of providers in related specialties within Pennsylvania.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mark Edward Schadt, MD treated as a general surgeon in Bethlehem, PA during 2012 were hospital care, inpatient care, gastrointestinal procedures and open surgery.

Volume of procedures performed by Dr. Mark Edward Schadt, MD for Medicare patients.

abdominal surgery	90
doctor visit	485
gastrointestinal procedures	122
hospital care	383
inpatient care	383
minimally invasive procedures	32
open surgery	90
preventive care	32

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark Edward Schadt, MD treated as a general surgeon in Bethlehem, PA during 2013 were hospital care, inpatient care, gastrointestinal procedures and open surgery.

Volume of procedures performed by Dr. Mark Edward Schadt, MD for Medicare patients.

abdominal surgery	77
abscess drainage	20
doctor visit	453
gastrointestinal procedures	93
hospital care	306
incision and drainage	20
inpatient care	306
minimally invasive procedures	16
minor procedures	20
open surgery	77
preventive care	16
skin surgery	20

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Edward Schadt, MD.

**Gender**
Male	222
Female	357

**Ethnicity**
Non-Hispanic White	545
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	242
From 75 to 84	195
85 and over	101
Less than 65	41

Conditions of Medicare patients treated by Dr. Mark Edward Schadt, MD in 2013

Hypertension	75
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	38
Depression	22
Chronic Kidney Disease	27
Asthma	10
Osteoperosis	10
Atrial Fibrilation	17
Heart Failure	20
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	11
Cancer	29

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark Edward Schadt, MD treated as a general surgeon in Bethlehem, PA during 2014 were inpatient care, hospital care, gastrointestinal procedures and open surgery.

Volume of procedures performed by Dr. Mark Edward Schadt, MD for Medicare patients.

abdominal surgery	99
abscess drainage	23
diagnostic procedures	12
doctor visit	466
excision	12
gastrointestinal procedures	122
hospital care	325
incision and drainage	23
inpatient care	325
lymph node procedures	12
minimally invasive procedures	23
minor procedures	23
open surgery	111
preventive care	23
skin surgery	23

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Edward Schadt, MD.

**Gender**
Male	269
Female	353

**Ethnicity**
Non-Hispanic White	573
Black	14
Hispanic	24
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	258
From 75 to 84	208
85 and over	102
Less than 65	54

Conditions of Medicare patients treated by Dr. Mark Edward Schadt, MD in 2014

Hypertension	75
High Cholesterol	65
Stroke	5
Ischemic Heart Disease	38
Depression	23
Chronic Kidney Disease	27
Asthma	10
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	29
Dementia	9
Cancer	26

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark Edward Schadt, MD treated as a general surgeon in Bethlehem, PA during 2015 were hospital care, inpatient care, gastrointestinal procedures and open surgery.

Volume of procedures performed by Dr. Mark Edward Schadt, MD for Medicare patients.

abdominal surgery	87
abscess drainage	15
diagnostic procedures	15
doctor visit	417
gastrointestinal procedures	102
hospital care	267
incision and drainage	15
inpatient care	267
minimally invasive procedures	15
minor procedures	15
open surgery	87
removal of lesion (e.g. growth)	15
skin surgery	15

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Edward Schadt, MD.

**Gender**
Male	438
Female	694

**Ethnicity**
Non-Hispanic White	1048
Black	0
Hispanic	34
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	484
From 75 to 84	386
85 and over	152
Less than 65	110

Conditions of Medicare patients treated by Dr. Mark Edward Schadt, MD in 2015

Hypertension	75
High Cholesterol	64
Stroke	7
Ischemic Heart Disease	39
Depression	21
Chronic Kidney Disease	29
Asthma	12
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	32
Dementia	8
Cancer	26

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark Edward Schadt, MD treated as a general surgeon in Bethlehem, PA during 2016 were hospital care, inpatient care, gastrointestinal procedures and open surgery.

Volume of procedures performed by Dr. Mark Edward Schadt, MD for Medicare patients.

abdominal surgery	102
abscess drainage	18
diagnostic procedures	18
doctor visit	462
gastrointestinal procedures	120
hospital care	235
incision and drainage	18
inpatient care	235
minimally invasive procedures	18
minor procedures	18
open surgery	102
removal of lesion (e.g. growth)	18
skin surgery	18

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Edward Schadt, MD.

**Gender**
Male	233
Female	356

**Ethnicity**
Non-Hispanic White	549
Black	13
Hispanic	16
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	265
From 75 to 84	203
85 and over	68
Less than 65	53

Conditions of Medicare patients treated by Dr. Mark Edward Schadt, MD in 2016

Hypertension	75
High Cholesterol	65
Stroke	6
Ischemic Heart Disease	34
Depression	21
Chronic Kidney Disease	33
Asthma	17
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	10
Cancer	26

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark Edward Schadt, MD treated as a general surgeon in Bethlehem, PA during 2017 were hospital care, inpatient care, open surgery and abdominal surgery.

Volume of procedures performed by Dr. Mark Edward Schadt, MD for Medicare patients.

abdominal surgery	70
abscess drainage	17
doctor visit	399
gastrointestinal procedures	70
hospital care	257
incision and drainage	17
inpatient care	257
minor procedures	17
open surgery	70
skin surgery	17

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Edward Schadt, MD.

**Gender**
Male	213
Female	317

**Ethnicity**
Non-Hispanic White	479
Black	0
Hispanic	22
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	235
From 75 to 84	176
85 and over	75
Less than 65	44

Conditions of Medicare patients treated by Dr. Mark Edward Schadt, MD in 2017

Hypertension	75
High Cholesterol	60
Stroke	5
Ischemic Heart Disease	34
Depression	23
Chronic Kidney Disease	36
Asthma	9
Osteoperosis	12
Atrial Fibrilation	16
Heart Failure	20
Chronic Obstructive Pulmonary Disease	12
Diabetes	32
Dementia	10
Cancer	26

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark Edward Schadt, MD treated as a general surgeon in Bethlehem, PA during 2018 were hospital care, inpatient care, open surgery and abdominal surgery.

Volume of procedures performed by Dr. Mark Edward Schadt, MD for Medicare patients.

abdominal surgery	87
abscess drainage	16
doctor visit	423
gastrointestinal procedures	87
hospital care	229
incision and drainage	16
inpatient care	229
minor procedures	16
open surgery	87
skin surgery	16

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Edward Schadt, MD.

**Gender**
Male	255
Female	320

**Ethnicity**
Non-Hispanic White	522
Black	11
Hispanic	25
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	229
From 75 to 84	214
85 and over	74
Less than 65	58

Conditions of Medicare patients treated by Dr. Mark Edward Schadt, MD in 2018

Hypertension	75
High Cholesterol	69
Stroke	3
Ischemic Heart Disease	33
Depression	25
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	11
Atrial Fibrilation	18
Heart Failure	19
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	11
Cancer	29

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Edward Schadt, MD treated as a general surgeon in Bethlehem, PA during 2019 were hospital care, inpatient care, abdominal surgery and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark Edward Schadt, MD for Medicare patients.

abdominal surgery	91
abscess drainage	15
doctor visit	455
gastrointestinal procedures	91
hospital care	235
incision and drainage	15
inpatient care	235
minimally invasive procedures	21
minor procedures	15
open surgery	70
skin surgery	15

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Edward Schadt, MD.

**Gender**
Male	247
Female	314

**Ethnicity**
Non-Hispanic White	509
Black	0
Hispanic	18
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	274
From 75 to 84	172
85 and over	67
Less than 65	48

Conditions of Medicare patients treated by Dr. Mark Edward Schadt, MD in 2019

Hypertension	75
High Cholesterol	71
Stroke	0
Ischemic Heart Disease	28
Depression	25
Chronic Kidney Disease	36
Asthma	11
Osteoperosis	10
Atrial Fibrilation	17
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	32
Dementia	7
Cancer	24

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark Edward Schadt, MD treated as a general surgeon in Bethlehem, PA during 2020 were hospital care, inpatient care, open surgery and abdominal surgery.

Volume of procedures performed by Dr. Mark Edward Schadt, MD for Medicare patients.

abdominal surgery	55
abscess drainage	17
doctor visit	385
gastrointestinal procedures	55
hospital care	242
incision and drainage	17
inpatient care	242
minor procedures	17
open surgery	55
skin surgery	17

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Edward Schadt, MD.

**Gender**
Male	232
Female	254

**Ethnicity**
Non-Hispanic White	447
Black	13
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	210
From 75 to 84	153
85 and over	71
Less than 65	52

Conditions of Medicare patients treated by Dr. Mark Edward Schadt, MD in 2020

Hypertension	75
High Cholesterol	70
Stroke	6
Ischemic Heart Disease	31
Depression	26
Chronic Kidney Disease	42
Asthma	8
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	20
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Dementia	12
Cancer	25

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark Edward Schadt, MD treated as a general surgeon in Bethlehem, PA during 2021 were hospital care, inpatient care, open surgery and abdominal surgery.

Volume of procedures performed by Dr. Mark Edward Schadt, MD for Medicare patients.

abdominal surgery	62
abscess drainage	17
doctor visit	352
gastrointestinal procedures	62
hospital care	141
incision and drainage	17
inpatient care	141
minor procedures	17
open surgery	62
skin surgery	17

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Edward Schadt, MD.

**Gender**
Male	193
Female	260

**Ethnicity**
Non-Hispanic White	414
Black	0
Hispanic	0
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	219
From 75 to 84	140
85 and over	61
Less than 65	33

Conditions of Medicare patients treated by Dr. Mark Edward Schadt, MD in 2021

Hypertension	75
High Cholesterol	70
Stroke	5
Ischemic Heart Disease	26
Depression	23
Chronic Kidney Disease	36
Asthma	9
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	16
Chronic Obstructive Pulmonary Disease	9
Diabetes	28
Dementia	9
Cancer	25

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark Edward Schadt, MD treated as a general surgeon in Bethlehem, PA during 2022 were hospital care, inpatient care, open surgery and abdominal surgery.

Volume of procedures performed by Dr. Mark Edward Schadt, MD for Medicare patients.

abdominal surgery	67
doctor visit	371
gastrointestinal procedures	67
hospital care	117
inpatient care	117
open surgery	67

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Edward Schadt, MD.

**Gender**
Male	206
Female	213

**Ethnicity**
Non-Hispanic White	389
Black	0
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	195
From 75 to 84	143
85 and over	61
Less than 65	20

Conditions of Medicare patients treated by Dr. Mark Edward Schadt, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	23
Depression	23
Chronic Kidney Disease	30
Asthma	14
Osteoperosis	18
Atrial Fibrilation	20
Heart Failure	16
Chronic Obstructive Pulmonary Disease	16
Diabetes	26
Dementia	7
Cancer	28

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mark Edward Schadt, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark Edward Schadt, MD treated as a general surgeon in Bethlehem, PA were inpatient care, hospital care, gastrointestinal procedures and abdominal surgery.

abdominal surgery	80
abscess drainage	17
diagnostic procedures	15
doctor visit	424
excision	12
gastrointestinal procedures	90
hospital care	248
incision and drainage	17
inpatient care	248
lymph node procedures	12
minimally invasive procedures	20
minor procedures	17
open surgery	79
preventive care	23
removal of lesion (e.g. growth)	16
skin surgery	17

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mark Edward Schadt, MD.

**Gender**
Male	228
Female	312

**Ethnicity**
Black / African American	4
Asian / Pacific Islander	0
Non-Hispanic White	497
Native American / Alaskan Native	0
Hispanic	12
Other	11

**Age**
75 to 84	180
85 and over	75
Less than 65	46
65 to 74	237

Average of Total of Conditions of Medicare patients treated by Dr. Mark Edward Schadt, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Mark Edward Schadt, MD treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	68
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	29
Depression	21
Chronic Kidney Disease	30
Asthma	9
Osteoporosis	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	27
Atrial Fibrillation	15
Dementia	8
Cancer	24

Education & Training

Dr. Mark Edward Schadt, MD graduated from Thomas Jefferson University, Jefferson Medical College in 1985. He completed residency at Lankenau Medical Center. He is certified by the American Board of Surgery and has a state license in Pennsylvania.

Medical School: Thomas Jefferson University, Jefferson Medical College (1985)

Residency: Lankenau Medical Center (1990)

Board Certification: American Board of Surgery

Licensed In: Pennsylvania

Affiliations & Hospitals

Dr. Mark Edward Schadt, MD is associated with these hospitals and organizations:

St. Luke's University Health Network

ST LUKES PHYSICIAN GROUP INC

Ratings & Reviews

Dr. Mark Edward Schadt, MD has an exceptional overall rating with an average of 4.91 out of 5 stars based on 209 ratings. We collect ratings and reviews of Dr. Mark Edward Schadt, MD from all over the web to help you find the right in Bethlehem, PA.

4.91

Overall Rating

(209 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Intuitive Surgical, Inc.	$5,785 Da Vinci Surgical System $5,785
Davol Inc.	$611 SURGICAL $500	$111
Stryker Corporation	$152 SPY-PHI SYSTEM $152
GENZYME CORPORATION	$125 AFIRMA $125
Pfizer Inc.	$17 QUILLIVANT XR $17
Other	$30 HARMONIC Product Family $17	AQUACEL $14

**Types of Payments**
Education	$4,000
Travel and Lodging	$1,289
Food and Beverage	$931
Consulting Fee	$500

Biography

Dr. Mark Schadt is a specialist in general surgery. He is rated 5.0 stars (out of 5) by his patients. His clinical interests encompass thyroid problems, laparoscopic surgery, and general surgery. Dr. Schadt is affiliated with St. Luke's University Health Network. He welcomes new patients at his office inBethlehem, PA as reported by Doctor.com. Before performing his residency at Lankenau Medical Center, Dr. Schadt attended Thomas Jefferson University, Jefferson Medical College for medical school.