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Dr. Lennart C. Tan, MD

(Dr. Lennart Cu Tan, MD)

(No ratings)

Specializes in: Pathology

Indiana University School of Medicine (1998)

1035 116th Avenue Ne Building 3 Bellevue Wa
Bellevue, WA 98004

(425) 688-5084

Dr. Lennart C. Tan, MD is a pathologist in Bellevue, WA specializing in pathology. He graduated from Indiana University School of Medicine in 1998 and has 28 years of experience. Dr. Lennart C. Tan, MD is affiliated with Overlake Medical Center & Clinics and INCYTE PATHOLOGY PS.

Office Locations

Overlake Medical Center & Clinics

1035 116th Avenue Ne Building 3 Bellevue Wa
Bellevue, WA 98004

(425) 688-5084

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13103 E Mansfield Avenue
Spokane, WA 99216

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

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

Top 5%

By Affordability:

lab tests

special stains

In 2023, Dr. Lennart C. Tan, MD had a list price for lab tests, and special stains that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Washington. 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:

immunohistochemistry test

In 2023, Dr. Lennart C. Tan, MD had a list price for immunohistochemistry (IHC) test that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Washington. 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 Affordability:

consultation

intraoperative pathology consultation

liquid-based cytology

non-gynecologic liquid-based cytology

In 2012, Dr. Lennart C. Tan, MD had a list price for consultation, intraoperative pathology consultation, liquid-based cytology (ThinPrep), and non-gynecologic liquid-based cytology that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Washington. 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. Lennart C. Tan, MD treated as a pathologist in Bellevue, WA during 2012 were lab tests, consultation and cytology.

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

consultation	69
cytology	60
lab tests	266

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Lennart C. Tan, MD treated as a pathologist in Bellevue, WA during 2013 were lab tests, consultation and cytology.

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

consultation	56
cytology	53
lab tests	159

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Lennart C. Tan, MD.

**Gender**
Male	233
Female	334

**Ethnicity**
Non-Hispanic White	501
Black	0
Hispanic	0
Asian	49
Other	0
Native American	0

**Age**
From 65 to 74	245
From 75 to 84	214
85 and over	82
Less than 65	26

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

Hypertension	63
High Cholesterol	53
Stroke	3
Ischemic Heart Disease	31
Depression	19
Chronic Kidney Disease	21
Asthma	8
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	14
Diabetes	22
Dementia	9
Cancer	20

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Lennart C. Tan, MD treated as a pathologist in Bellevue, WA during 2014 were lab tests, consultation and cytology.

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

consultation	67
cytology	56
lab tests	201

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Lennart C. Tan, MD.

**Gender**
Male	281
Female	341

**Ethnicity**
Non-Hispanic White	540
Black	0
Hispanic	0
Asian	55
Other	0
Native American	0

**Age**
From 65 to 74	285
From 75 to 84	223
85 and over	78
Less than 65	36

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

Hypertension	62
High Cholesterol	53
Stroke	4
Ischemic Heart Disease	33
Depression	17
Chronic Kidney Disease	21
Asthma	9
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	24
Dementia	8
Cancer	23

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Lennart C. Tan, MD treated as a pathologist in Bellevue, WA during 2015 were lab tests, consultation and cytology.

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

consultation	55
cytology	42
lab tests	107

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Lennart C. Tan, MD.

**Gender**
Male	782
Female	1032

**Ethnicity**
Non-Hispanic White	1528
Black	0
Hispanic	0
Asian	182
Other	50
Native American	0

**Age**
From 65 to 74	866
From 75 to 84	672
85 and over	210
Less than 65	66

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

Hypertension	56
High Cholesterol	53
Stroke	4
Ischemic Heart Disease	32
Depression	20
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	10
Diabetes	21
Dementia	7
Cancer	16

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Lennart C. Tan, MD treated as a pathologist in Bellevue, WA during 2016 were lab tests, consultation and cytology.

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

consultation	80
cytology	59
lab tests	175

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Lennart C. Tan, MD.

**Gender**
Male	297
Female	409

**Ethnicity**
Non-Hispanic White	593
Black	0
Hispanic	0
Asian	70
Other	23
Native American	0

**Age**
From 65 to 74	319
From 75 to 84	262
85 and over	100
Less than 65	25

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

Hypertension	64
High Cholesterol	58
Stroke	5
Ischemic Heart Disease	33
Depression	19
Chronic Kidney Disease	25
Asthma	14
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	15
Chronic Obstructive Pulmonary Disease	12
Diabetes	24
Dementia	10
Cancer	25

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Lennart C. Tan, MD treated as a pathologist in Bellevue, WA during 2017 were lab tests, consultation and cytology.

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

consultation	69
cytology	56
lab tests	160

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Lennart C. Tan, MD.

**Gender**
Male	284
Female	394

**Ethnicity**
Non-Hispanic White	584
Black	0
Hispanic	0
Asian	46
Other	29
Native American	0

**Age**
From 65 to 74	308
From 75 to 84	258
85 and over	81
Less than 65	31

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

Hypertension	65
High Cholesterol	55
Stroke	4
Ischemic Heart Disease	36
Depression	23
Chronic Kidney Disease	29
Asthma	8
Osteoperosis	10
Atrial Fibrilation	18
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	24
Dementia	10
Cancer	25

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Lennart C. Tan, MD treated as a pathologist in Bellevue, WA during 2018 were lab tests, cytology and consultation.

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

consultation	71
cytology	81
lab tests	149

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Lennart C. Tan, MD.

**Gender**
Male	129
Female	225

**Ethnicity**
Non-Hispanic White	303
Black	0
Hispanic	0
Asian	30
Other	0
Native American	0

**Age**
From 65 to 74	128
From 75 to 84	139
85 and over	75
Less than 65	12

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

Hypertension	74
High Cholesterol	60
Stroke	6
Ischemic Heart Disease	41
Depression	28
Chronic Kidney Disease	36
Asthma	8
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	24
Chronic Obstructive Pulmonary Disease	14
Diabetes	25
Dementia	16
Cancer	35

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Lennart C. Tan, MD treated as a pathologist in Bellevue, WA during 2019 were lab tests, consultation and cytology.

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

consultation	71
cytology	69
lab tests	151

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Lennart C. Tan, MD.

**Gender**
Male	135
Female	215

**Ethnicity**
Non-Hispanic White	303
Black	0
Hispanic	0
Asian	19
Other	13
Native American	0

**Age**
From 65 to 74	149
From 75 to 84	122
85 and over	63
Less than 65	16

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

Hypertension	69
High Cholesterol	62
Stroke	8
Ischemic Heart Disease	36
Depression	26
Chronic Kidney Disease	35
Asthma	9
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	21
Chronic Obstructive Pulmonary Disease	15
Diabetes	22
Dementia	13
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Lennart C. Tan, MD treated as a pathologist in Bellevue, WA during 2020 were lab tests, consultation and cytology.

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

consultation	106
cytology	51
lab tests	161

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Lennart C. Tan, MD.

**Gender**
Male	192
Female	230

**Ethnicity**
Non-Hispanic White	364
Black	0
Hispanic	0
Asian	20
Other	17
Native American	0

**Age**
From 65 to 74	173
From 75 to 84	165
85 and over	62
Less than 65	22

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

Hypertension	70
High Cholesterol	63
Stroke	4
Ischemic Heart Disease	34
Depression	19
Chronic Kidney Disease	37
Asthma	9
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	22
Chronic Obstructive Pulmonary Disease	12
Diabetes	31
Dementia	12
Cancer	29

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Lennart C. Tan, MD treated as a pathologist in Bellevue, WA during 2021 were lab tests, consultation and cytology.

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

consultation	85
cytology	65
lab tests	153

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Lennart C. Tan, MD.

**Gender**
Male	248
Female	318

**Ethnicity**
Non-Hispanic White	503
Black	0
Hispanic	0
Asian	20
Other	28
Native American	0

**Age**
From 65 to 74	231
From 75 to 84	224
85 and over	86
Less than 65	25

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

Hypertension	68
High Cholesterol	56
Stroke	5
Ischemic Heart Disease	34
Depression	26
Chronic Kidney Disease	32
Asthma	9
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	27
Dementia	11
Cancer	25

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Lennart C. Tan, MD treated as a pathologist in Bellevue, WA during 2022 were lab tests, cytology and consultation.

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

consultation	61
cytology	63
lab tests	252

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Lennart C. Tan, MD.

**Gender**
Male	182
Female	290

**Ethnicity**
Non-Hispanic White	421
Black	0
Hispanic	0
Asian	20
Other	17
Native American	0

**Age**
From 65 to 74	197
From 75 to 84	178
85 and over	82
Less than 65	15

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

Hypertension	74
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	31
Depression	25
Chronic Kidney Disease	28
Asthma	11
Osteoperosis	19
Atrial Fibrilation	24
Heart Failure	18
Chronic Obstructive Pulmonary Disease	17
Diabetes	27
Dementia	9
Cancer	34

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

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

The highest averages for the top procedures that Dr. Lennart C. Tan, MD treated as a pathologist in Bellevue, WA were lab tests, consultation and cytology.

consultation	71
cytology	59
lab tests	175

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Lennart C. Tan, MD.

**Gender**
Male	251
Female	344

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	46
Non-Hispanic White	512
Native American / Alaskan Native	0
Hispanic	0
Other	16

**Age**
75 to 84	223
85 and over	83
Less than 65	24
65 to 74	263

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

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

Hypertension	60
High Cholesterol	53
Stroke	4
Ischemic Heart Disease	31
Depression	20
Chronic Kidney Disease	25
Asthma	8
Osteoporosis	9
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	22
Atrial Fibrillation	14
Dementia	9
Cancer	21

Education & Training

Dr. Lennart C. Tan, MD graduated from Indiana University School of Medicine in 1998. He completed residency at University of Michigan Affiliated Hospitals. He has a state license in Michigan.

Medical School: Indiana University School of Medicine (1998)

Residency: University of Michigan Affiliated Hospitals (2003)

Licensed In: Michigan

Affiliations & Hospitals

Dr. Lennart C. Tan, MD is associated with these hospitals and organizations:

Overlake Medical Center & Clinics

INCYTE PATHOLOGY PS

Ratings & Reviews

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General Payments

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

**Payments by Company**
Roche Diagnostics Corporation	$18 TD BenchMark IHC/ISH and Special Stains Reagents $18

**Types of Payments**
Food and Beverage	$18

Biography

Dr. Lennart Tan specializes in pathology. He is affiliated with Overlake Medical Center & Clinics. Dr. Tan attended medical school at Indiana University School of Medicine. For his professional training, Dr. Tan completed a residency program at a hospital affiliated with the University of Michigan.