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Dr. Walter M. Klein, MD

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Specializes in: Dermatopathology

University of Pennsylvania School of Medicine

100 E Lancaster Avenue Pathology Department
Wynnewood, PA 19096

(610) 645-2613

Dr. Walter M. Klein, MD is a dermatopathologist in Wynnewood, PA specializing in dermatopathology. He graduated from University of Pennsylvania School of Medicine. Dr. Walter M. Klein, MD is affiliated with Main Line Health.

Office Locations

100 E Lancaster Avenue Pathology Department
Wynnewood, PA 19096

(610) 645-2613

open_in_new

130 South Bryn Mawr Avenue
Bryn Mawr, PA 19010

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In The News (see more mentions in the news)

“Walter M. Klein, M.D., a pathologist, will serve a four-year term as an At-Large Specialties Trustee.”—"McCarthy takes role at Barley Snyder and other new hires", The Morning Call, November 2017

“Walter Klein, M.D. is a board certified pathologist at Bryn Mawr Hospital and an active member of the Montgomery County Medical Society and the Pennsylvania Medical Society.”—"Medical Mystery: Her fibroid only seemed typical", Philadelphia Inquirer, October 2016

“Walter Klein is a board certified pathologist at Main Line Health System and an active member of the Montgomery County Medical Society and the Pennsylvania Medical Society.”—"No head trauma, so what's causing headaches?", Philadelphia Inquirer, September 2015

Noteworthy Medicare Patient Procedures Performed by Dr. Walter M. Klein, MD in 2023

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

Top 25%

By Volume:

intraoperative pathology consultation

lab tests

In 2012, Dr. Walter M. Klein, MD performed more intraoperative pathology consultation, and lab tests procedures for Medicare patients than 75% of providers in related specialties within Pennsylvania.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Walter M. Klein, MD treated as a dermatopathologist in Wynnewood, PA during 2012 were lab tests and consultation.

Volume of procedures performed by Dr. Walter M. Klein, MD for Medicare patients.

consultation	56
lab tests	292

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Walter M. Klein, MD treated as a dermatopathologist in Wynnewood, PA during 2013 were lab tests and consultation.

Volume of procedures performed by Dr. Walter M. Klein, MD for Medicare patients.

consultation	89
lab tests	329

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter M. Klein, MD.

**Gender**
Male	406
Female	600

**Ethnicity**
Non-Hispanic White	943
Black	38
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	438
From 75 to 84	337
85 and over	184
Less than 65	47

Conditions of Medicare patients treated by Dr. Walter M. Klein, MD in 2013

Hypertension	75
High Cholesterol	69
Stroke	9
Ischemic Heart Disease	40
Depression	22
Chronic Kidney Disease	25
Asthma	9
Osteoperosis	13
Atrial Fibrilation	19
Heart Failure	20
Chronic Obstructive Pulmonary Disease	16
Diabetes	27
Dementia	14
Cancer	26

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Walter M. Klein, MD treated as a dermatopathologist in Wynnewood, PA during 2014 were lab tests and consultation.

Volume of procedures performed by Dr. Walter M. Klein, MD for Medicare patients.

consultation	87
lab tests	256

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter M. Klein, MD.

**Gender**
Male	441
Female	592

**Ethnicity**
Non-Hispanic White	946
Black	48
Hispanic	0
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	444
From 75 to 84	333
85 and over	185
Less than 65	71

Conditions of Medicare patients treated by Dr. Walter M. Klein, MD in 2014

Hypertension	71
High Cholesterol	65
Stroke	7
Ischemic Heart Disease	38
Depression	23
Chronic Kidney Disease	25
Asthma	9
Osteoperosis	10
Atrial Fibrilation	19
Heart Failure	17
Chronic Obstructive Pulmonary Disease	14
Diabetes	27
Dementia	9
Cancer	26

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Walter M. Klein, MD treated as a dermatopathologist in Wynnewood, PA during 2015 were lab tests and consultation.

Volume of procedures performed by Dr. Walter M. Klein, MD for Medicare patients.

consultation	111
lab tests	201

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter M. Klein, MD.

**Gender**
Male	938
Female	1314

**Ethnicity**
Non-Hispanic White	2074
Black	80
Hispanic	0
Asian	0
Other	60
Native American	0

**Age**
From 65 to 74	1016
From 75 to 84	726
85 and over	400
Less than 65	110

Conditions of Medicare patients treated by Dr. Walter M. Klein, MD in 2015

Hypertension	71
High Cholesterol	67
Stroke	9
Ischemic Heart Disease	38
Depression	21
Chronic Kidney Disease	24
Asthma	13
Osteoperosis	11
Atrial Fibrilation	17
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	25
Dementia	10
Cancer	25

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Walter M. Klein, MD treated as a dermatopathologist in Wynnewood, PA during 2016 were lab tests and consultation.

Volume of procedures performed by Dr. Walter M. Klein, MD for Medicare patients.

consultation	77
lab tests	234

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter M. Klein, MD.

**Gender**
Male	437
Female	628

**Ethnicity**
Non-Hispanic White	961
Black	48
Hispanic	0
Asian	0
Other	32
Native American	0

**Age**
From 65 to 74	463
From 75 to 84	340
85 and over	197
Less than 65	65

Conditions of Medicare patients treated by Dr. Walter M. Klein, MD in 2016

Hypertension	71
High Cholesterol	68
Stroke	7
Ischemic Heart Disease	39
Depression	22
Chronic Kidney Disease	32
Asthma	21
Osteoperosis	12
Atrial Fibrilation	17
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	26
Dementia	15
Cancer	29

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Walter M. Klein, MD treated as a dermatopathologist in Wynnewood, PA during 2017 were lab tests and consultation.

Volume of procedures performed by Dr. Walter M. Klein, MD for Medicare patients.

consultation	38
lab tests	183

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter M. Klein, MD.

**Gender**
Male	405
Female	512

**Ethnicity**
Non-Hispanic White	836
Black	40
Hispanic	0
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	453
From 75 to 84	286
85 and over	142
Less than 65	36

Conditions of Medicare patients treated by Dr. Walter M. Klein, MD in 2017

Hypertension	70
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	40
Depression	25
Chronic Kidney Disease	30
Asthma	8
Osteoperosis	11
Atrial Fibrilation	18
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	25
Dementia	16
Cancer	25

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Walter M. Klein, MD treated as a dermatopathologist in Wynnewood, PA during 2018 were lab tests and consultation.

Volume of procedures performed by Dr. Walter M. Klein, MD for Medicare patients.

consultation	52
lab tests	186

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter M. Klein, MD.

**Gender**
Male	422
Female	485

**Ethnicity**
Non-Hispanic White	820
Black	41
Hispanic	0
Asian	0
Other	27
Native American	0

**Age**
From 65 to 74	384
From 75 to 84	324
85 and over	151
Less than 65	48

Conditions of Medicare patients treated by Dr. Walter M. Klein, MD in 2018

Hypertension	70
High Cholesterol	71
Stroke	7
Ischemic Heart Disease	40
Depression	23
Chronic Kidney Disease	35
Asthma	11
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	17
Chronic Obstructive Pulmonary Disease	14
Diabetes	25
Dementia	15
Cancer	28

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Walter M. Klein, MD treated as a dermatopathologist in Wynnewood, PA during 2019 were lab tests and consultation.

Volume of procedures performed by Dr. Walter M. Klein, MD for Medicare patients.

consultation	29
lab tests	177

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter M. Klein, MD.

**Gender**
Male	507
Female	589

**Ethnicity**
Non-Hispanic White	964
Black	71
Hispanic	0
Asian	0
Other	43
Native American	0

**Age**
From 65 to 74	469
From 75 to 84	379
85 and over	179
Less than 65	69

Conditions of Medicare patients treated by Dr. Walter M. Klein, MD in 2019

Hypertension	72
High Cholesterol	72
Stroke	8
Ischemic Heart Disease	44
Depression	28
Chronic Kidney Disease	38
Asthma	9
Osteoperosis	15
Atrial Fibrilation	21
Heart Failure	22
Chronic Obstructive Pulmonary Disease	15
Diabetes	28
Dementia	18
Cancer	28

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Walter M. Klein, MD treated as a dermatopathologist in Wynnewood, PA during 2020 were lab tests and consultation.

Volume of procedures performed by Dr. Walter M. Klein, MD for Medicare patients.

consultation	55
lab tests	232

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter M. Klein, MD.

**Gender**
Male	472
Female	510

**Ethnicity**
Non-Hispanic White	844
Black	70
Hispanic	14
Asian	13
Other	41
Native American	0

**Age**
From 65 to 74	447
From 75 to 84	341
85 and over	145
Less than 65	49

Conditions of Medicare patients treated by Dr. Walter M. Klein, MD in 2020

Hypertension	70
High Cholesterol	73
Stroke	8
Ischemic Heart Disease	44
Depression	28
Chronic Kidney Disease	38
Asthma	9
Osteoperosis	12
Atrial Fibrilation	21
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	27
Dementia	17
Cancer	32

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Walter M. Klein, MD treated as a dermatopathologist in Wynnewood, PA during 2021 were lab tests and consultation.

Volume of procedures performed by Dr. Walter M. Klein, MD for Medicare patients.

consultation	78
lab tests	277

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter M. Klein, MD.

**Gender**
Male	517
Female	577

**Ethnicity**
Non-Hispanic White	954
Black	69
Hispanic	0
Asian	0
Other	52
Native American	0

**Age**
From 65 to 74	527
From 75 to 84	361
85 and over	150
Less than 65	56

Conditions of Medicare patients treated by Dr. Walter M. Klein, MD in 2021

Hypertension	71
High Cholesterol	72
Stroke	7
Ischemic Heart Disease	44
Depression	24
Chronic Kidney Disease	39
Asthma	8
Osteoperosis	16
Atrial Fibrilation	20
Heart Failure	19
Chronic Obstructive Pulmonary Disease	14
Diabetes	26
Dementia	14
Cancer	29

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Walter M. Klein, MD treated as a dermatopathologist in Wynnewood, PA during 2022 were lab tests and consultation.

Volume of procedures performed by Dr. Walter M. Klein, MD for Medicare patients.

consultation	37
lab tests	335

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Walter M. Klein, MD.

**Gender**
Male	419
Female	556

**Ethnicity**
Non-Hispanic White	866
Black	51
Hispanic	0
Asian	11
Other	35
Native American	0

**Age**
From 65 to 74	423
From 75 to 84	365
85 and over	138
Less than 65	49

Conditions of Medicare patients treated by Dr. Walter M. Klein, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	39
Depression	24
Chronic Kidney Disease	27
Asthma	14
Osteoperosis	21
Atrial Fibrilation	25
Heart Failure	20
Chronic Obstructive Pulmonary Disease	19
Diabetes	28
Dementia	6
Cancer	36

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Walter M. Klein, MD for Medicare patients.

The highest averages for the top procedures that Dr. Walter M. Klein, MD treated as a dermatopathologist in Wynnewood, PA were lab tests and consultation.

consultation	64
lab tests	245

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Walter M. Klein, MD.

**Gender**
Male	451
Female	578

**Ethnicity**
Black / African American	50
Asian / Pacific Islander	2
Non-Hispanic White	928
Native American / Alaskan Native	0
Hispanic	1
Other	30

**Age**
75 to 84	344
85 and over	170
Less than 65	54
65 to 74	460

Average of Total of Conditions of Medicare patients treated by Dr. Walter M. Klein, MD From 2012 - 2022

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

Hypertension	65
High Cholesterol	63
Stroke	7
Ischemic Heart Disease	36
Depression	21
Chronic Kidney Disease	28
Asthma	10
Osteoporosis	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	24
Atrial Fibrillation	17
Dementia	12
Cancer	25

Education & Training

Dr. Walter M. Klein, MD graduated from University of Pennsylvania School of Medicine. He completed residency at Johns Hopkins University Affiliated Hospitals. He is certified by the Laboratory Services and Pathology - Board certified since and has a state license in Pennsylvania.

Medical School: University of Pennsylvania School of Medicine

Residency: Johns Hopkins University Affiliated Hospitals

Board Certification: Laboratory Services and Pathology - Board certified since (2006)

Licensed In: Pennsylvania

Affiliations & Hospitals

Dr. Walter M. Klein, MD is associated with these hospitals and organizations:

Main Line Health

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General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$733 TAGRISSO $222	FARXIGA $125	Enhertu $124	IMFINZI $83	CALQUENCE $70	Other $109
Lilly USA, LLC	$585 CYRAMZA $283	VERZENIO $147	ALIMTA $114	JAYPIRCA $41
Genentech USA, Inc.	$478 Esbriet $119	Perjeta $93	Kadcyla $80	Avastin $60	Herceptin $31	Other $95
E.R. Squibb & Sons, L.L.C.	$372 OPDIVO $218	EMPLICITI $95	SPRYCEL $32	ERBITUX $16	YERVOY $11
Celgene Corporation	$362 Revlimid $211	Abraxane $125	Pomalyst $26
Other	$2,990 ADCETRIS $272	STELARA $238	TARCEVA $197	AMPLATZER Occluders $135	Lenvima $126	Other $2,021

**Types of Payments**
Food and Beverage	$5,520

Biography

Dr. Walter Klein is a dermatopathology specialist in Bryn Mawr, PA and Wynnewood, PA. Dr. Klein graduated from the University of Pennsylvania School of Medicine. He completed his residency training at a hospital affiliated with Johns Hopkins University. He is conversant in Spanish. He is affiliated with Main Line Health.