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Dr. Mark Tan, MD

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Specializes in: Adult Rheumatology

SUNY, University at Buffalo School of Medicine & Biomedical Sciences (1983)

222 Middle Country Road Suite 312
Smithtown, NY 11787

(631) 724-8900

Dr. Mark Tan, MD is a rheumatologist in Smithtown, NY specializing in adult rheumatology. He graduated from SUNY, University at Buffalo School of Medicine & Biomedical Sciences in 1983 and has 43 years of experience.

Office Locations

222 Middle Country Road Suite 312
Smithtown, NY 11787

(631) 724-8900

(631) 724-8901

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

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

Top 5%

By Volume:

injections

In 2023, Dr. Mark Tan, MD performed more injections procedures for Medicare patients than 95% of providers in related specialties within New York.

Top 10%

By Volume:

biological response modifier therapy

intravenous infusion therapy

intravenous chemotherapy

major joint aspiration

major joint injection

In 2023, Dr. Mark Tan, MD performed more biological response modifier (BRM) therapy, intravenous infusion therapy, intravenous (IV) chemotherapy, major joint aspiration, and major joint injection procedures for Medicare patients than 90% of providers in related specialties within New York.

Top 25%

By Volume:

blood draw

phlebotomy for lab tests

By Affordability:

intravenous infusion therapy

In 2012, among providers in related specialties within New York, Dr. Mark Tan, MD performed more blood draw, and phlebotomy for lab tests procedures for Medicare patients than 75% of them and he also had a list price for intravenous infusion therapy 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. Mark Tan, MD treated as a rheumatologist in Smithtown, NY during 2012 were lab tests, injections, aspiration and minimally invasive procedures.

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

aspiration	541
biological response modifier (BRM) therapy	332
blood draw	417
chemotherapy	332
doctor visit	911
injections	559
lab tests	688
minimally invasive procedures	417
pain management	18

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark Tan, MD treated as a rheumatologist in Smithtown, NY during 2013 were injections, aspiration, lab tests and minimally invasive procedures.

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

aspiration	792
biological response modifier (BRM) therapy	387
blood draw	426
chemotherapy	387
doctor visit	873
injections	808
lab tests	726
minimally invasive procedures	505
pain management	16

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Tan, MD.

**Gender**
Male	132
Female	344

**Ethnicity**
Non-Hispanic White	421
Black	16
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	216
From 75 to 84	135
85 and over	54
Less than 65	71

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

Hypertension	75
High Cholesterol	71
Stroke	5
Ischemic Heart Disease	42
Depression	17
Chronic Kidney Disease	22
Asthma	10
Osteoperosis	21
Atrial Fibrilation	9
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	38
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark Tan, MD treated as a rheumatologist in Smithtown, NY during 2014 were injections, lab tests, aspiration and blood draw.

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

aspiration	903
biological response modifier (BRM) therapy	387
blood draw	558
chemotherapy	387
doctor visit	1177
injections	938
lab tests	929
minimally invasive procedures	460
pain management	35

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Tan, MD.

**Gender**
Male	159
Female	396

**Ethnicity**
Non-Hispanic White	491
Black	16
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	258
From 75 to 84	149
85 and over	57
Less than 65	91

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

Hypertension	72
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	38
Depression	18
Chronic Kidney Disease	23
Asthma	13
Osteoperosis	25
Atrial Fibrilation	12
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	38
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark Tan, MD treated as a rheumatologist in Smithtown, NY during 2015 were lab tests, injections, aspiration and blood draw.

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

aspiration	834
biological response modifier (BRM) therapy	282
blood draw	570
chemotherapy	282
doctor visit	1004
injections	894
lab tests	970
minimally invasive procedures	303
pain management	60

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Tan, MD.

**Gender**
Male	320
Female	800

**Ethnicity**
Non-Hispanic White	956
Black	42
Hispanic	76
Asian	22
Other	24
Native American	0

**Age**
From 65 to 74	490
From 75 to 84	344
85 and over	108
Less than 65	178

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

Hypertension	74
High Cholesterol	68
Stroke	7
Ischemic Heart Disease	39
Depression	21
Chronic Kidney Disease	24
Asthma	15
Osteoperosis	26
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	38
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark Tan, MD treated as a rheumatologist in Smithtown, NY during 2016 were injections, aspiration, lab tests and blood draw.

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

aspiration	1073
biological response modifier (BRM) therapy	353
blood draw	687
chemotherapy	353
doctor visit	1643
injections	1124
lab tests	858
minimally invasive procedures	414
pain management	51

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Tan, MD.

**Gender**
Male	186
Female	406

**Ethnicity**
Non-Hispanic White	502
Black	25
Hispanic	39
Asian	14
Other	12
Native American	0

**Age**
From 65 to 74	286
From 75 to 84	160
85 and over	54
Less than 65	92

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

Hypertension	70
High Cholesterol	65
Stroke	5
Ischemic Heart Disease	39
Depression	21
Chronic Kidney Disease	27
Asthma	19
Osteoperosis	28
Atrial Fibrilation	9
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	39
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark Tan, MD treated as a rheumatologist in Smithtown, NY during 2017 were lab tests, aspiration, injections and blood draw.

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

aspiration	701
biological response modifier (BRM) therapy	397
blood draw	531
chemotherapy	397
doctor visit	1522
injections	701
lab tests	832
minimally invasive procedures	397

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Tan, MD.

**Gender**
Male	151
Female	362

**Ethnicity**
Non-Hispanic White	447
Black	14
Hispanic	26
Asian	12
Other	14
Native American	0

**Age**
From 65 to 74	238
From 75 to 84	154
85 and over	41
Less than 65	80

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

Hypertension	73
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	36
Depression	22
Chronic Kidney Disease	27
Asthma	11
Osteoperosis	23
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	17
Diabetes	38
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark Tan, MD treated as a rheumatologist in Smithtown, NY during 2018 were aspiration, injections, lab tests and blood draw.

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

aspiration	659
biological response modifier (BRM) therapy	417
blood draw	490
chemotherapy	417
doctor visit	1398
injections	659
lab tests	600
minimally invasive procedures	417

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Tan, MD.

**Gender**
Male	131
Female	326

**Ethnicity**
Non-Hispanic White	395
Black	15
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	144
85 and over	41
Less than 65	67

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

Hypertension	71
High Cholesterol	67
Stroke	6
Ischemic Heart Disease	37
Depression	24
Chronic Kidney Disease	26
Asthma	9
Osteoperosis	23
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	35
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Tan, MD treated as a rheumatologist in Smithtown, NY during 2019 were injections, aspiration, blood draw and chemotherapy.

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

aspiration	614
biological response modifier (BRM) therapy	376
blood draw	490
chemotherapy	376
doctor visit	1351
injections	648
minimally invasive procedures	376
pain management	34

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Tan, MD.

**Gender**
Male	120
Female	326

**Ethnicity**
Non-Hispanic White	376
Black	15
Hispanic	32
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	204
From 75 to 84	133
85 and over	42
Less than 65	67

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

Hypertension	73
High Cholesterol	68
Stroke	7
Ischemic Heart Disease	41
Depression	23
Chronic Kidney Disease	26
Asthma	11
Osteoperosis	27
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	16
Diabetes	35
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark Tan, MD treated as a rheumatologist in Smithtown, NY during 2020 were blood draw, injections, aspiration and chemotherapy.

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

aspiration	394
biological response modifier (BRM) therapy	384
blood draw	544
chemotherapy	384
doctor visit	1219
injections	442
minimally invasive procedures	384
pain management	32

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Tan, MD.

**Gender**
Male	115
Female	309

**Ethnicity**
Non-Hispanic White	352
Black	18
Hispanic	29
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	202
From 75 to 84	125
85 and over	33
Less than 65	64

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

Hypertension	70
High Cholesterol	68
Stroke	6
Ischemic Heart Disease	40
Depression	25
Chronic Kidney Disease	28
Asthma	11
Osteoperosis	28
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	37
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark Tan, MD treated as a rheumatologist in Smithtown, NY during 2021 were blood draw, chemotherapy, biological response modifier (BRM) therapy and minimally invasive procedures.

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

aspiration	330
biological response modifier (BRM) therapy	363
blood draw	530
chemotherapy	363
doctor visit	1162
injections	363
minimally invasive procedures	363
pain management	33

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Tan, MD.

**Gender**
Male	126
Female	297

**Ethnicity**
Non-Hispanic White	363
Black	0
Hispanic	24
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	194
From 75 to 84	147
85 and over	33
Less than 65	49

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

Hypertension	73
High Cholesterol	74
Stroke	7
Ischemic Heart Disease	41
Depression	26
Chronic Kidney Disease	32
Asthma	9
Osteoperosis	26
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	35
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark Tan, MD treated as a rheumatologist in Smithtown, NY during 2022 were blood draw, chemotherapy, biological response modifier (BRM) therapy and minimally invasive procedures.

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

aspiration	325
biological response modifier (BRM) therapy	396
blood draw	608
chemotherapy	396
doctor visit	1173
injections	357
minimally invasive procedures	396
pain management	32

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Tan, MD.

**Gender**
Male	112
Female	288

**Ethnicity**
Non-Hispanic White	353
Black	0
Hispanic	20
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	173
From 75 to 84	148
85 and over	39
Less than 65	40

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

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	34
Depression	20
Chronic Kidney Disease	21
Asthma	12
Osteoperosis	35
Atrial Fibrilation	20
Heart Failure	17
Chronic Obstructive Pulmonary Disease	21
Diabetes	36
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

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

The highest averages for the top procedures that Dr. Mark Tan, MD treated as a rheumatologist in Smithtown, NY were lab tests, injections, aspiration and blood draw.

aspiration	651
biological response modifier (BRM) therapy	370
blood draw	531
chemotherapy	370
doctor visit	1221
injections	681
lab tests	800
minimally invasive procedures	402
pain management	34

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mark Tan, MD.

**Gender**
Male	141
Female	350

**Ethnicity**
Black / African American	14
Asian / Pacific Islander	4
Non-Hispanic White	423
Hispanic	29
Native American / Alaskan Native	0
Other	8

**Age**
75 to 84	149
85 and over	45
Less than 65	72
65 to 74	224

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

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

Hypertension	66
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	35
Depression	19
Chronic Kidney Disease	23
Asthma	10
Osteoporosis	23
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	33
Atrial Fibrillation	10
Cancer	9
Dementia	6

Education & Training

Dr. Mark Tan, MD graduated from SUNY, University at Buffalo School of Medicine & Biomedical Sciences in 1983. He has a state license in New York.

Medical School: SUNY, University at Buffalo School of Medicine & Biomedical Sciences (1983)

Licensed In: New York

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General Payments

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

**Payments by Company**
Janssen Biotech, Inc.	$3,071 STELARA $929	SIMPONI $889	Tremfya $631	REMICADE $319	SIMPONI ARIA $303
Amgen Inc.	$2,786 Prolia $1,441	Enbrel $566	Tavneos $314	Otezla $294	AVSOLA $72	Other $98
Pfizer Inc.	$1,842 XELJANZ $902	PAXLOVID $370	INFLECTRA $358	LYRICA $111	COMIRNATY $51	Other $49
GlaxoSmithKline, LLC.	$1,761 BENLYSTA $1,745	$16
AbbVie Inc.	$1,634 Rinvoq $1,367	Skyrizi $123	Humira $117	$27
Other	$12,486 Actemra $1,588	COSENTYX $1,057	PENNSAID $822	TALTZ $789	Humira $716	Other $7,513

**Types of Payments**
Food and Beverage	$23,288
Education	$290

Biography

Dr. Mark Tan's area of specialization is adult rheumatology. Dr. Tan studied medicine at SUNY, University at Buffalo School of Medicine & Biomedical Sciences.

Select Year:

Dr. Mark Tan, MD

Office Locations

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

By Volume:

By Volume:

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. Mark Tan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

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

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

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

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

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

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

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

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

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

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

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

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

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

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

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

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

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

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

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

Education & Training

Ratings & Reviews

General Payments

Biography

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