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Dr. John A. Dorizas, MD

Accepting New Patients

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Specializes in: Sports Medicine and Orthopedics/Orthopedic Surgery

University of Alabama at Birmingham School of Medicine (1999)

1100 E 3rd Street G-102
Chattanooga, TN 37403

(423) 778-3390

Dr. John A. Dorizas, MD is a sports medicine doctor in Chattanooga, TN specializing in sports medicine and orthopedics/orthopedic surgery. He graduated from University of Alabama at Birmingham School of Medicine in 1999 and has 27 years of experience. Dr. John A. Dorizas, MD is affiliated with ERLANGER HEALTH.

Office Locations

1100 E 3rd Street G-102
Chattanooga, TN 37403

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Noteworthy Medicare Patient Procedures Performed by Dr. John A. Dorizas, MD in 2023

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

Top 5%

By Volume:

open brachial plexus decompression

suprascapular nerve block

By Affordability:

arthroscopic biceps tenodesis

biceps tenodesis

suprascapular nerve block

In 2023, among providers in related specialties within Tennessee, Dr. John A. Dorizas, MD performed more open brachial plexus decompression, and suprascapular nerve block procedures for Medicare patients than 95% of them and he also had a list price for arthroscopic biceps tenodesis, biceps tenodesis, and suprascapular nerve block that was lower than the list prices billed to Medicare by 95% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 10%

By Affordability:

arthroscopic shoulder debridement

shoulder debridement

In 2023, Dr. John A. Dorizas, MD had a list price for arthroscopic shoulder debridement, and shoulder debridement that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Tennessee. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 25%

By Volume:

arthroscopic shoulder debridement

minimally invasive surgery

By Affordability:

arthroscopic rotator cuff repair

In 2012, among providers in related specialties within Tennessee, Dr. John A. Dorizas, MD performed more arthroscopic shoulder debridement, and minimally invasive surgery procedures for Medicare patients than 75% of them and he also had a list price for arthroscopic rotator cuff repair, rotator cuff repair, rotator cuff surgery, shoulder arthroscopy, and shoulder surgery that was lower than the list prices billed to Medicare by 75% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John A. Dorizas, MD treated as a sports medicine doctor in Chattanooga, TN during 2012 were aspiration and injections.

Volume of procedures performed by Dr. John A. Dorizas, MD for Medicare patients.

aspiration	85
doctor visit	239
injections	85

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John A. Dorizas, MD treated as a sports medicine doctor in Chattanooga, TN during 2013 were aspiration, injections, upper extremity surgery and nerve procedures.

Volume of procedures performed by Dr. John A. Dorizas, MD for Medicare patients.

aspiration	146
debridement (removal of unhealthy tissue)	14
decompression surgery	16
doctor visit	236
injections	146
joint surgery	14
minimally invasive procedures	14
nerve procedures	16
open surgery	16
upper extremity surgery	30

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Dorizas, MD.

**Gender**
Male	55
Female	74

**Age**
From 65 to 74	79
From 75 to 84	24
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John A. Dorizas, MD in 2013

Hypertension	60
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	19
Depression	20
Chronic Kidney Disease	15
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	9
Chronic Obstructive Pulmonary Disease	11
Diabetes	25
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John A. Dorizas, MD treated as a sports medicine doctor in Chattanooga, TN during 2014 were aspiration and injections.

Volume of procedures performed by Dr. John A. Dorizas, MD for Medicare patients.

aspiration	92
doctor visit	197
injections	92

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Dorizas, MD.

**Gender**
Male	51
Female	58

**Age**
From 65 to 74	64
From 75 to 84	25
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John A. Dorizas, MD in 2014

Hypertension	54
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	22
Depression	19
Chronic Kidney Disease	14
Asthma	10
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John A. Dorizas, MD treated as a sports medicine doctor in Chattanooga, TN during 2015 were aspiration, injections, upper extremity surgery and minimally invasive procedures.

Volume of procedures performed by Dr. John A. Dorizas, MD for Medicare patients.

aspiration	125
debridement (removal of unhealthy tissue)	24
decompression surgery	23
doctor visit	223
injections	125
joint surgery	24
minimally invasive procedures	24
nerve procedures	23
open surgery	23
upper extremity surgery	47

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Dorizas, MD.

**Gender**
Male	124
Female	138

**Age**
From 65 to 74	116
From 75 to 84	80
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John A. Dorizas, MD in 2015

Hypertension	63
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	27
Depression	21
Chronic Kidney Disease	12
Asthma	13
Osteoperosis	8
Atrial Fibrilation	0
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	24
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John A. Dorizas, MD treated as a sports medicine doctor in Chattanooga, TN during 2016 were aspiration, injections, upper extremity surgery and minimally invasive procedures.

Volume of procedures performed by Dr. John A. Dorizas, MD for Medicare patients.

aspiration	76
debridement (removal of unhealthy tissue)	15
decompression surgery	14
doctor visit	199
injections	76
joint surgery	15
minimally invasive procedures	15
nerve procedures	14
open surgery	14
upper extremity surgery	29

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Dorizas, MD.

**Gender**
Male	76
Female	54

**Age**
From 65 to 74	71
From 75 to 84	0
85 and over	0
Less than 65	31

Conditions of Medicare patients treated by Dr. John A. Dorizas, MD in 2016

Hypertension	67
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	24
Depression	23
Chronic Kidney Disease	19
Asthma	10
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	15
Chronic Obstructive Pulmonary Disease	0
Diabetes	24
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John A. Dorizas, MD treated as a sports medicine doctor in Chattanooga, TN during 2017 were aspiration, injections, upper extremity surgery and nerve procedures.

Volume of procedures performed by Dr. John A. Dorizas, MD for Medicare patients.

aspiration	106
debridement (removal of unhealthy tissue)	12
decompression surgery	16
doctor visit	214
injections	106
joint surgery	12
minimally invasive procedures	12
nerve procedures	16
open surgery	16
upper extremity surgery	28

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Dorizas, MD.

**Gender**
Male	64
Female	66

**Ethnicity**
Non-Hispanic White	119
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	70
From 75 to 84	38
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John A. Dorizas, MD in 2017

Hypertension	62
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	25
Depression	20
Chronic Kidney Disease	16
Asthma	11
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	19
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John A. Dorizas, MD treated as a sports medicine doctor in Chattanooga, TN during 2018 were injections, aspiration, upper extremity surgery and nerve block.

Volume of procedures performed by Dr. John A. Dorizas, MD for Medicare patients.

aspiration	93
debridement (removal of unhealthy tissue)	16
decompression surgery	33
doctor visit	313
injections	127
joint surgery	27
minimally invasive procedures	27
nerve block	34
nerve procedures	22
open surgery	22
upper extremity surgery	49

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Dorizas, MD.

**Gender**
Male	73
Female	105

**Ethnicity**
Non-Hispanic White	159
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	40
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John A. Dorizas, MD in 2018

Hypertension	64
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	27
Depression	31
Chronic Kidney Disease	19
Asthma	9
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	22
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John A. Dorizas, MD treated as a sports medicine doctor in Chattanooga, TN during 2019 were injections, upper extremity surgery, minimally invasive procedures and joint surgery.

Volume of procedures performed by Dr. John A. Dorizas, MD for Medicare patients.

aspiration	61
debridement (removal of unhealthy tissue)	31
decompression surgery	37
doctor visit	325
injections	114
joint surgery	70
minimally invasive procedures	70
nerve block	53
nerve procedures	37
open surgery	37
tendon surgery	20
upper extremity surgery	107

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Dorizas, MD.

**Gender**
Male	73
Female	103

**Ethnicity**
Non-Hispanic White	158
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	103
From 75 to 84	42
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John A. Dorizas, MD in 2019

Hypertension	54
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	30
Depression	27
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	7
Chronic Obstructive Pulmonary Disease	13
Diabetes	21
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John A. Dorizas, MD treated as a sports medicine doctor in Chattanooga, TN during 2020 were injections, upper extremity surgery, minimally invasive procedures and joint surgery.

Volume of procedures performed by Dr. John A. Dorizas, MD for Medicare patients.

aspiration	34
debridement (removal of unhealthy tissue)	18
decompression surgery	19
doctor visit	233
injections	68
joint surgery	40
minimally invasive procedures	40
nerve block	34
nerve procedures	19
open surgery	19
tendon surgery	11
upper extremity surgery	59

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Dorizas, MD.

**Gender**
Male	69
Female	68

**Age**
From 65 to 74	92
From 75 to 84	29
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John A. Dorizas, MD in 2020

Hypertension	61
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	38
Depression	24
Chronic Kidney Disease	25
Asthma	8
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	8
Diabetes	32
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John A. Dorizas, MD treated as a sports medicine doctor in Chattanooga, TN during 2021 were injections, nerve block, aspiration and minimally invasive procedures.

Volume of procedures performed by Dr. John A. Dorizas, MD for Medicare patients.

aspiration	28
debridement (removal of unhealthy tissue)	16
doctor visit	217
injections	63
joint surgery	16
minimally invasive procedures	16
nerve block	35
upper extremity surgery	16

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Dorizas, MD.

**Gender**
Male	54
Female	67

**Ethnicity**
Non-Hispanic White	108
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John A. Dorizas, MD in 2021

Hypertension	57
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	31
Depression	26
Chronic Kidney Disease	15
Asthma	9
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	21
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John A. Dorizas, MD treated as a sports medicine doctor in Chattanooga, TN during 2022 were injections, nerve block, upper extremity surgery and minimally invasive procedures.

Volume of procedures performed by Dr. John A. Dorizas, MD for Medicare patients.

aspiration	19
debridement (removal of unhealthy tissue)	20
decompression surgery	11
doctor visit	218
injections	65
joint surgery	20
minimally invasive procedures	20
nerve block	46
nerve procedures	11
open surgery	11
upper extremity surgery	31

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Dorizas, MD.

**Gender**
Male	64
Female	57

**Age**
From 65 to 74	80
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John A. Dorizas, MD in 2022

Hypertension	72
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	23
Depression	29
Chronic Kidney Disease	12
Asthma	13
Osteoperosis	0
Atrial Fibrilation	10
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John A. Dorizas, MD for Medicare patients.

The highest averages for the top procedures that Dr. John A. Dorizas, MD treated as a sports medicine doctor in Chattanooga, TN were injections, aspiration, upper extremity surgery and nerve block.

aspiration	78
debridement (removal of unhealthy tissue)	18
decompression surgery	21
doctor visit	237
injections	97
joint surgery	26
minimally invasive procedures	26
nerve block	40
nerve procedures	19
open surgery	19
tendon surgery	15
upper extremity surgery	44

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John A. Dorizas, MD.

**Gender**
Male	63
Female	71

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	49
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	29
85 and over	0
Less than 65	2
65 to 74	78

Average of Total of Conditions of Medicare patients treated by Dr. John A. Dorizas, MD From 2012 - 2022

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

Hypertension	55
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	24
Depression	21
Chronic Kidney Disease	15
Asthma	8
Osteoporosis	1
Heart Failure	5
Chronic Obstructive Pulmonary Disease	5
Diabetes	21
Atrial Fibrillation	0
Dementia	0
Cancer	5

Education & Training

Dr. John A. Dorizas, MD graduated from University of Alabama at Birmingham School of Medicine in 1999. He completed residency at Medical University of South Carolina Affiliated Hospitals. He has a state license in Tennessee.

Medical School: University of Alabama at Birmingham School of Medicine (1999)

Residency: Medical University of South Carolina Affiliated Hospitals

Licensed In: Tennessee

Affiliations & Hospitals

Dr. John A. Dorizas, MD is associated with these hospitals and organizations:

ERLANGER HEALTH

Ratings & Reviews

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General Payments

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

**Payments by Company**
Smith & Nephew, Inc.	$3,192 Fast-Fix 360 $2,167	Sports Med Shoulder $500	Sports Med Knee $311	Endobutton $120	Werewolf System $44	Other $49
Arthrex, Inc.	$1,811 $1,811
Alpha Orthopedic Systems	$761 ARTHREX PRODUCT LINE SHOULDER & ELBOW ARTHROSCOPY $368	$393
Ferring Pharmaceuticals Inc.	$118 EUFLEXXA $118
Pfizer Inc.	$112 ELIQUIS $73	ZYVOX $28	CELEBREX $10
Other	$317 COOLIEF* COOLED RADIOFREQUENCY $44	itotal CR $40	ZORVOLEX $33	Early Intervention $27	VIMOVO $25	Other $147

**Types of Payments**
Travel and Lodging	$2,854
Education	$2,187
Food and Beverage	$1,270

Biography

Dr. John Dorizas' medical specialty is orthopedics/orthopedic surgery and sports medicine. After completing medical school at the University of Alabama at Birmingham School of Medicine, he performed his residency at a hospital affiliated with Medical University of South Carolina. Doctor.com reports that Dr. Dorizas is accepting new patients at his office in Chattanooga, TN.