Procedure Volume Patient Data Patient Conditions Reviews Back to Top

Home > MA Providers > Internists & Internal Medicine Doctors

Dr. Justin Nathaniel Dorfman, DO

(131 Ratings)

Specializes in: Internal Medicine (Adult Medicine) and Family Medicine

Lake Erie College of Osteopathic Medicine

Professional interests include: sports health

24 Newton Street 1 (
Southborough, MA 01772

(508) 460-3280

Dr. Justin Nathaniel Dorfman, DO is an internist in Southborough, MA specializing in internal medicine (adult medicine) and family medicine. He graduated from Lake Erie College of Osteopathic Medicine. Dr. Justin Nathaniel Dorfman, DO is affiliated with Reliant Medical Group.

Office Locations

Reliant Medical Group

24 Newton Street 1 (
Southborough, MA 01772

(508) 460-3280

open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Justin Nathaniel Dorfman, DO in 2023

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

Top 5%

By Volume:

major joint aspiration

major joint injection

By Affordability:

creatinine test

creatinine urine test

In 2023, among providers in related specialties within Massachusetts, Dr. Justin Nathaniel Dorfman, DO performed more major joint aspiration, and major joint injection procedures for Medicare patients than 95% of them and he also had a list price for creatinine test, and creatinine urine test 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:

kidney function tests

In 2023, Dr. Justin Nathaniel Dorfman, DO had a list price for kidney function tests that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Massachusetts. 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:

lab tests

screening test

By Affordability:

urinalysis

In 2012, among providers in related specialties within Massachusetts, Dr. Justin Nathaniel Dorfman, DO performed more lab tests, and screening test procedures for Medicare patients than 75% of them and he also had a list price for urinalysis 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. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA during 2012 were lab tests, preventive care, blood draw and vaccines.

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

aspiration	42
blood draw	125
diabetes management	32
doctor visit	352
injections	42
lab tests	263
preventive care	130
thyroid function tests	20
vaccines	46

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA during 2013 were lab tests, blood draw, preventive care and aspiration.

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

aspiration	47
blood draw	134
diabetes management	29
doctor visit	387
injections	47
lab tests	294
preventive care	109
thyroid function tests	25
vaccines	23

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO.

**Gender**
Male	91
Female	99

**Ethnicity**
Non-Hispanic White	176
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	95
From 75 to 84	46
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2013

Hypertension	52
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	20
Depression	25
Chronic Kidney Disease	19
Asthma	12
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	24
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA during 2014 were lab tests, blood draw, preventive care and aspiration.

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

aspiration	46
blood draw	136
diabetes management	37
doctor visit	386
injections	46
lab tests	351
preventive care	116
thyroid function tests	20
vaccines	24

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO.

**Gender**
Male	101
Female	110

**Ethnicity**
Non-Hispanic White	187
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	96
From 75 to 84	43
85 and over	17
Less than 65	55

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2014

Hypertension	55
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	15
Depression	21
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	9
Atrial Fibrilation	8
Heart Failure	9
Chronic Obstructive Pulmonary Disease	11
Diabetes	20
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA during 2015 were preventive care, blood draw, lab tests and vaccines.

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

anorectal procedures	12
aspiration	64
blood draw	149
diabetes management	20
doctor visit	352
injections	64
lab tests	138
preventive care	177
thyroid function tests	16
vaccines	100

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO.

**Gender**
Male	224
Female	214

**Ethnicity**
Non-Hispanic White	374
Black	0
Hispanic	0
Asian	0
Other	26
Native American	0

**Age**
From 65 to 74	236
From 75 to 84	106
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2015

Hypertension	55
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	20
Depression	25
Chronic Kidney Disease	23
Asthma	12
Osteoperosis	7
Atrial Fibrilation	5
Heart Failure	7
Chronic Obstructive Pulmonary Disease	8
Diabetes	24
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA during 2016 were lab tests, blood draw, preventive care and aspiration.

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

anorectal procedures	17
aspiration	63
blood draw	141
diabetes management	29
doctor visit	419
injections	63
lab tests	171
preventive care	137
thyroid function tests	17
vaccines	46

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO.

**Gender**
Male	128
Female	120

**Ethnicity**
Non-Hispanic White	219
Black	0
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	128
From 75 to 84	60
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2016

Hypertension	48
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	23
Depression	23
Chronic Kidney Disease	20
Asthma	14
Osteoperosis	7
Atrial Fibrilation	7
Heart Failure	8
Chronic Obstructive Pulmonary Disease	9
Diabetes	21
Dementia	5
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA during 2017 were lab tests, preventive care, blood draw and aspiration.

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

anorectal procedures	17
aspiration	111
blood draw	137
diabetes management	44
doctor visit	428
injections	111
lab tests	288
preventive care	175
thyroid function tests	19
vaccines	44

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO.

**Gender**
Male	124
Female	137

**Ethnicity**
Non-Hispanic White	223
Black	0
Hispanic	13
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	139
From 75 to 84	56
85 and over	17
Less than 65	49

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2017

Hypertension	56
High Cholesterol	41
Stroke	0
Ischemic Heart Disease	23
Depression	28
Chronic Kidney Disease	23
Asthma	11
Osteoperosis	8
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	8
Diabetes	21
Dementia	5
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA during 2018 were lab tests, preventive care, blood draw and aspiration.

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

anorectal procedures	13
aspiration	109
blood draw	120
diabetes management	42
doctor visit	481
injections	109
lab tests	291
preventive care	168
thyroid function tests	24
vaccines	44

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO.

**Gender**
Male	134
Female	177

**Ethnicity**
Non-Hispanic White	271
Black	0
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	174
From 75 to 84	64
85 and over	20
Less than 65	53

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2018

Hypertension	51
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	23
Depression	32
Chronic Kidney Disease	25
Asthma	8
Osteoperosis	6
Atrial Fibrilation	9
Heart Failure	8
Chronic Obstructive Pulmonary Disease	13
Diabetes	21
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA during 2019 were lab tests, preventive care, blood draw and aspiration.

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

anorectal procedures	17
aspiration	106
blood draw	158
diabetes management	48
doctor visit	463
injections	106
lab tests	307
preventive care	201
thyroid function tests	23
vaccines	60

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO.

**Gender**
Male	137
Female	193

**Ethnicity**
Non-Hispanic White	290
Black	0
Hispanic	14
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	172
From 75 to 84	74
85 and over	26
Less than 65	58

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2019

Hypertension	49
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	19
Depression	36
Chronic Kidney Disease	25
Asthma	11
Osteoperosis	6
Atrial Fibrilation	7
Heart Failure	9
Chronic Obstructive Pulmonary Disease	11
Diabetes	24
Dementia	8
Cancer	7

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA during 2020 were lab tests, blood draw, preventive care and aspiration.

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

aspiration	104
blood draw	129
diabetes management	41
doctor visit	452
injections	104
lab tests	279
preventive care	125
thyroid function tests	19
vaccines	13

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO.

**Gender**
Male	151
Female	163

**Ethnicity**
Non-Hispanic White	276
Black	0
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	173
From 75 to 84	62
85 and over	27
Less than 65	52

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2020

Hypertension	51
High Cholesterol	47
Stroke	4
Ischemic Heart Disease	21
Depression	30
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	6
Atrial Fibrilation	8
Heart Failure	7
Chronic Obstructive Pulmonary Disease	10
Diabetes	24
Dementia	5
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA during 2021 were lab tests, blood draw, preventive care and aspiration.

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

aspiration	113
blood draw	164
diabetes management	58
doctor visit	510
injections	113
lab tests	366
preventive care	161
thyroid function tests	21
vaccines	11

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO.

**Gender**
Male	172
Female	171

**Ethnicity**
Non-Hispanic White	303
Black	0
Hispanic	0
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	185
From 75 to 84	82
85 and over	33
Less than 65	43

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2021

Hypertension	47
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	18
Depression	30
Chronic Kidney Disease	27
Asthma	8
Osteoperosis	8
Atrial Fibrilation	7
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	22
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA during 2022 were lab tests, aspiration, injections and preventive care.

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

aspiration	107
blood draw	92
diabetes management	35
doctor visit	426
injections	107
lab tests	264
preventive care	96
thyroid function tests	20

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO.

**Gender**
Male	189
Female	201

**Ethnicity**
Non-Hispanic White	349
Black	0
Hispanic	0
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	209
From 75 to 84	112
85 and over	35
Less than 65	34

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2022

Hypertension	61
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	17
Depression	25
Chronic Kidney Disease	22
Asthma	14
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	8
Chronic Obstructive Pulmonary Disease	11
Diabetes	22
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA during 2023 were lab tests, preventive care, aspiration and injections.

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

aspiration	100
diabetes management	43
doctor visit	393
injections	100
lab tests	260
preventive care	119
thyroid function tests	17

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO.

**Gender**
Male	179
Female	203

**Ethnicity**
Non-Hispanic White	332
Black	0
Hispanic	0
Asian	11
Other	24
Native American	0

**Age**
From 65 to 74	198
From 75 to 84	106
85 and over	33
Less than 65	45

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2023

Hypertension	58
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	19
Depression	24
Chronic Kidney Disease	22
Asthma	14
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	9
Chronic Obstructive Pulmonary Disease	12
Diabetes	22
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Justin Nathaniel Dorfman, DO for Medicare patients.

The highest averages for the top procedures that Dr. Justin Nathaniel Dorfman, DO treated as an internist in Southborough, MA were lab tests, preventive care, blood draw and aspiration.

anorectal procedures	15
aspiration	84
blood draw	135
diabetes management	38
doctor visit	420
injections	84
lab tests	272
preventive care	142
thyroid function tests	20
vaccines	41

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO.

**Gender**
Female	149
Male	135

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	250
Native American / Alaskan Native	0
Hispanic	3
Other	11

**Age**
75 to 84	67
85 and over	17
Less than 65	32
65 to 74	150

Average of Total of Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Justin Nathaniel Dorfman, DO treated were high cholesterol, hypertension, depression and chronic kidney disease.

Hypertension	48
High Cholesterol	48
Stroke	1
Ischemic Heart Disease	18
Depression	24
Chronic Kidney Disease	20
Asthma	10
Osteoporosis	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	9
Diabetes	20
Atrial Fibrillation	7
Dementia	4
Cancer	9

Education & Training

Dr. Justin Nathaniel Dorfman, DO graduated from Lake Erie College of Osteopathic Medicine. He completed residency at Christiana Care Health System. He is certified by the Board Certification: Family Medicine, Sports Medicine and has a state license in Massachusetts.

Medical School: Lake Erie College of Osteopathic Medicine

Residency: Christiana Care Health System

Board Certification: Board Certification: Family Medicine, Sports Medicine

Licensed In: Massachusetts

Affiliations & Hospitals

Dr. Justin Nathaniel Dorfman, DO is associated with these hospitals and organizations:

Reliant Medical Group

Ratings & Reviews

Dr. Justin Nathaniel Dorfman, DO has an exceptional overall rating with an average of 5.0 out of 5 stars based on 131 ratings. We collect ratings and reviews of Dr. Justin Nathaniel Dorfman, DO from all over the web to help you find the right in Southborough, MA.

Overall Rating

(131 Ratings)

Leave a Review

Biography

Dr. Justin Dorfman works as a family medicine. Areas of particular interest for Dr. Dorfman include sports health. He is affiliated with Reliant Medical Group. He graduated from Lake Erie College of Osteopathic Medicine. He trained at Christiana Care Health System for residency. On average, patients gave Dr. Dorfman a rating of 5.0 stars (out of 5). Reliant Medical Group reports that he is closed to new patients at this time.

Select Year:

Dr. Justin Nathaniel Dorfman, DO

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Justin Nathaniel Dorfman, DO in 2023

By Volume:

By Affordability:

By Affordability:

By Volume:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Justin Nathaniel Dorfman, DO From 2012 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

Biography

Internists & Internal Medicine Doctors in Nearby Locations

Other Providers in Southborough, MA