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Dr. Evan Martin Bloch, MD

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Specializes in: Pathology

3351 El Camino Real Suite 101
Atherton, CA 94027

(650) 306-1016

Dr. Evan Martin Bloch, MD is a pathologist in Atherton, CA specializing in pathology. Dr. Evan Martin Bloch, MD is affiliated with Johns Hopkins University.

Office Locations

3351 El Camino Real Suite 101
Atherton, CA 94027

(650) 306-1016

(650) 369-3627

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In The News

“"The challenge is in its unpredictability and how things are shifting," said Evan Bloch, a pathologist and transfusion specialist at Johns Hopkins University who was not involved in the study.”—"Climate Change Is Stressing the World's Blood Supplies", New York Times, April 2025

Noteworthy Medicare Patient Procedures Performed by Dr. Evan Martin Bloch, MD in 2023

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

Top 5%

By Volume:

therapeutic apheresis

In 2023, Dr. Evan Martin Bloch, MD performed more therapeutic apheresis procedures for Medicare patients than 95% of providers in related specialties within California.

Top 10%

By Affordability:

apheresis

plasma exchange

plasmapheresis

therapeutic apheresis

In 2023, Dr. Evan Martin Bloch, MD had a list price for apheresis, plasma exchange, plasmapheresis, and therapeutic apheresis that was lower than the list prices billed to Medicare by 90% of providers in related specialties within California. 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. Evan Martin Bloch, MD treated as a pathologist in Atherton, CA during 2012 were cytology and lab tests.

Volume of procedures performed by Dr. Evan Martin Bloch, MD for Medicare patients.

cytology	262
lab tests	61

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Evan Martin Bloch, MD treated as a pathologist in Atherton, CA during 2013 were cytology and lab tests.

Volume of procedures performed by Dr. Evan Martin Bloch, MD for Medicare patients.

cytology	293
lab tests	96

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Evan Martin Bloch, MD.

**Gender**
Male	175
Female	68

**Ethnicity**
Non-Hispanic White	206
Black	0
Hispanic	12
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	88
From 75 to 84	101
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Evan Martin Bloch, MD in 2013

Hypertension	66
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	36
Depression	8
Chronic Kidney Disease	26
Asthma	11
Osteoperosis	9
Atrial Fibrilation	23
Heart Failure	21
Chronic Obstructive Pulmonary Disease	11
Diabetes	26
Dementia	5
Cancer	26

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Evan Martin Bloch, MD treated as a pathologist in Atherton, CA during 2014 were cytology and lab tests.

Volume of procedures performed by Dr. Evan Martin Bloch, MD for Medicare patients.

cytology	316
lab tests	30

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Evan Martin Bloch, MD.

**Gender**
Male	165
Female	77

**Ethnicity**
Non-Hispanic White	201
Black	0
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	96
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Evan Martin Bloch, MD in 2014

Hypertension	66
High Cholesterol	65
Stroke	6
Ischemic Heart Disease	36
Depression	10
Chronic Kidney Disease	32
Asthma	5
Osteoperosis	7
Atrial Fibrilation	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	7
Diabetes	22
Dementia	5
Cancer	24

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Evan Martin Bloch, MD treated as a pathologist in Atherton, CA during 2016 were apheresis.

Volume of procedures performed by Dr. Evan Martin Bloch, MD for Medicare patients.

apheresis	124

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Evan Martin Bloch, MD.

**Gender**
Male	28
Female	41

**Ethnicity**
Non-Hispanic White	33
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	23
From 75 to 84	0
85 and over	0
Less than 65	35

Conditions of Medicare patients treated by Dr. Evan Martin Bloch, MD in 2016

Hypertension	75
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	62
Depression	33
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	28
Heart Failure	30
Chronic Obstructive Pulmonary Disease	0
Diabetes	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Evan Martin Bloch, MD treated as a pathologist in Atherton, CA during 2017 were apheresis.

Volume of procedures performed by Dr. Evan Martin Bloch, MD for Medicare patients.

apheresis	81

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Evan Martin Bloch, MD.

**Gender**
Male	33
Female	22

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

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

Conditions of Medicare patients treated by Dr. Evan Martin Bloch, MD in 2017

Hypertension	69
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	58
Depression	33
Chronic Kidney Disease	71
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	36
Chronic Obstructive Pulmonary Disease	0
Diabetes	49
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Evan Martin Bloch, MD treated as a pathologist in Atherton, CA during 2018 were apheresis.

Volume of procedures performed by Dr. Evan Martin Bloch, MD for Medicare patients.

apheresis	121

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Evan Martin Bloch, MD.

**Gender**
Male	36
Female	39

**Ethnicity**
Non-Hispanic White	0
Black	38
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	49

Conditions of Medicare patients treated by Dr. Evan Martin Bloch, MD in 2018

Hypertension	68
High Cholesterol	40
Stroke	0
Ischemic Heart Disease	59
Depression	39
Chronic Kidney Disease	59
Asthma	20
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	39
Chronic Obstructive Pulmonary Disease	0
Diabetes	31
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Evan Martin Bloch, MD treated as a pathologist in Atherton, CA during 2019 were apheresis.

Volume of procedures performed by Dr. Evan Martin Bloch, MD for Medicare patients.

apheresis	140

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Evan Martin Bloch, MD.

**Gender**
Male	30
Female	39

**Ethnicity**
Non-Hispanic White	0
Black	39
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	45

Conditions of Medicare patients treated by Dr. Evan Martin Bloch, MD in 2019

Hypertension	62
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	52
Depression	32
Chronic Kidney Disease	61
Asthma	22
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	41
Chronic Obstructive Pulmonary Disease	0
Diabetes	36
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Evan Martin Bloch, MD treated as a pathologist in Atherton, CA during 2020 were apheresis.

Volume of procedures performed by Dr. Evan Martin Bloch, MD for Medicare patients.

apheresis	151

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Evan Martin Bloch, MD.

**Gender**
Male	34
Female	49

**Ethnicity**
Non-Hispanic White	0
Black	45
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	28
From 75 to 84	0
85 and over	0
Less than 65	44

Conditions of Medicare patients treated by Dr. Evan Martin Bloch, MD in 2020

Hypertension	65
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	57
Depression	42
Chronic Kidney Disease	57
Asthma	16
Osteoperosis	0
Atrial Fibrilation	16
Heart Failure	36
Chronic Obstructive Pulmonary Disease	0
Diabetes	33
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Evan Martin Bloch, MD treated as a pathologist in Atherton, CA during 2021 were apheresis.

Volume of procedures performed by Dr. Evan Martin Bloch, MD for Medicare patients.

apheresis	268

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Evan Martin Bloch, MD.

**Gender**
Male	47
Female	64

**Ethnicity**
Non-Hispanic White	39
Black	60
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	34
From 75 to 84	0
85 and over	0
Less than 65	57

Conditions of Medicare patients treated by Dr. Evan Martin Bloch, MD in 2021

Hypertension	72
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	55
Depression	50
Chronic Kidney Disease	68
Asthma	19
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	41
Chronic Obstructive Pulmonary Disease	13
Diabetes	37
Dementia	14
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Evan Martin Bloch, MD treated as a pathologist in Atherton, CA during 2022 were apheresis.

Volume of procedures performed by Dr. Evan Martin Bloch, MD for Medicare patients.

apheresis	246

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Evan Martin Bloch, MD.

**Gender**
Male	48
Female	59

**Ethnicity**
Non-Hispanic White	38
Black	57
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	38
From 75 to 84	0
85 and over	0
Less than 65	53

Conditions of Medicare patients treated by Dr. Evan Martin Bloch, MD in 2022

Hypertension	69
High Cholesterol	53
Stroke	17
Ischemic Heart Disease	28
Depression	42
Chronic Kidney Disease	52
Asthma	19
Osteoperosis	10
Atrial Fibrilation	25
Heart Failure	33
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Evan Martin Bloch, MD for Medicare patients.

The highest averages for the top procedures that Dr. Evan Martin Bloch, MD treated as a pathologist in Atherton, CA were cytology, apheresis and lab tests.

apheresis	161
cytology	290
lab tests	62

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Evan Martin Bloch, MD.

**Gender**
Male	59
Female	45

**Ethnicity**
Black / African American	23
Asian / Pacific Islander	1
Non-Hispanic White	54
Hispanic	2
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	19
85 and over	0
Less than 65	31
65 to 74	29

Average of Total of Conditions of Medicare patients treated by Dr. Evan Martin Bloch, MD From 2012 - 2022

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

Hypertension	61
High Cholesterol	45
Stroke	2
Ischemic Heart Disease	44
Depression	28
Chronic Kidney Disease	50
Asthma	11
Osteoporosis	3
Heart Failure	29
Chronic Obstructive Pulmonary Disease	5
Diabetes	31
Atrial Fibrillation	12
Cancer	6
Dementia	3

Education & Training

He has a state license in Massachusetts.

Licensed In: Massachusetts

Affiliations & Hospitals

Dr. Evan Martin Bloch, MD is associated with these hospitals and organizations:

Johns Hopkins University

Ratings & Reviews

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General Payments

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

**Payments by Company**
Abbott Laboratories	$4,275 ARCHITECT $3,000	Architect i2000SR Analyser System $1,275
Gilead Sciences, Inc.	$2,094 $2,094
Grifols, S.A.	$2,050 $2,050
Roche Molecular Systems, Inc.	$66 $66
Grifols Diagnostic Solutions, Inc.	$65 $65
Other	$16 Mirasol $16

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$5,050
Travel and Lodging	$1,915
Consulting Fee	$1,275
Food and Beverage	$326