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Dr. Karen McLean, PhD, FACOG, MD

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Specializes in: Gynecologic Oncology
University of Michigan Medical School
Professional interests include: chemotherapy, uterine problems, vulvar cancer, and more.

Buffalo, CA 14263

Dr. Karen McLean, PhD, FACOG, MD is a gynecologic oncologist in Buffalo, NY specializing in gynecologic oncology. She graduated from University of Michigan Medical School. Dr. Karen McLean, PhD, FACOG, MD is affiliated with Roswell Park Comprehensive Cancer Center and Kaleida Health.

View Doctor's Full Profile (716) 845-1300

Office Locations

Roswell Park Comprehensive Cancer Center

665 Elm Street
Buffalo, NY 14203
1-800-767-9355
open_in_new

Buffalo, CA 14263
open_in_new

Kaleida Health


Buffalo, CA 14263
(716) 845-1300
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In The News 

“Though not surprising, "this is an important study beyond prior data on vaccination and cervical dysplasia/cancer," said Karen McLean, MD, PhD, of Roswell Park Comprehensive Cancer Center in...”—"HPV Vaccine Protection Extends to High-Grade Vulvovaginal Precancers", MedPage Today, December 2025

Noteworthy Medicare Patient Procedures Performed by Dr. Karen McLean, PhD, FACOG, MD in 2023

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

Top 10%

By Affordability:

hospital care
inpatient care
inpatient hospital care

In 2023, Dr. Karen McLean, PhD, FACOG, MD had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 90% of providers in related specialties within New York. 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. Karen McLean, PhD, FACOG, MD treated as a gynecologic oncologist in Buffalo, NY during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen McLean, PhD, FACOG, MD for Medicare patients.

doctor visit 98
hospital care 19
inpatient care 19

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Karen McLean, PhD, FACOG, MD treated as a gynecologic oncologist in Buffalo, NY during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen McLean, PhD, FACOG, MD for Medicare patients.

doctor visit 142
hospital care 32
inpatient care 32

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD.

Gender
Male 0
Female 85
Ethnicity
Non-Hispanic White 68
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 41
From 75 to 84 0
85 and over 0
Less than 65 21

Conditions of Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD in 2013

Hypertension 68
High Cholesterol 42
Stroke 0
Ischemic Heart Disease 34
Depression 28
Chronic Kidney Disease 35
Asthma 0
Osteoperosis 0
Atrial Fibrilation 14
Heart Failure 21
Chronic Obstructive Pulmonary Disease 16
Diabetes 45
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Karen McLean, PhD, FACOG, MD treated as a gynecologic oncologist in Buffalo, NY during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen McLean, PhD, FACOG, MD for Medicare patients.

doctor visit 186
hospital care 70
inpatient care 70

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD.

Gender
Male 0
Female 110
Ethnicity
Non-Hispanic White 97
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 54
From 75 to 84 0
85 and over 0
Less than 65 27

Conditions of Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD in 2014

Hypertension 60
High Cholesterol 41
Stroke 0
Ischemic Heart Disease 25
Depression 37
Chronic Kidney Disease 35
Asthma 12
Osteoperosis 11
Atrial Fibrilation 13
Heart Failure 17
Chronic Obstructive Pulmonary Disease 13
Diabetes 29
Dementia 0
Cancer 13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Karen McLean, PhD, FACOG, MD treated as a gynecologic oncologist in Buffalo, NY during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen McLean, PhD, FACOG, MD for Medicare patients.

doctor visit 163
hospital care 44
inpatient care 44

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD.

Gender
Male 0
Female 176
Ethnicity
Non-Hispanic White 148
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 102
From 75 to 84 34
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD in 2015

Hypertension 68
High Cholesterol 35
Stroke 0
Ischemic Heart Disease 23
Depression 28
Chronic Kidney Disease 36
Asthma 20
Osteoperosis 0
Atrial Fibrilation 0
Heart Failure 16
Chronic Obstructive Pulmonary Disease 13
Diabetes 40
Dementia 0
Cancer 13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Karen McLean, PhD, FACOG, MD treated as a gynecologic oncologist in Buffalo, NY during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen McLean, PhD, FACOG, MD for Medicare patients.

doctor visit 190
hospital care 43
inpatient care 43

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD.

Gender
Male 0
Female 110
Ethnicity
Non-Hispanic White 93
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 61
From 75 to 84 0
85 and over 0
Less than 65 25

Conditions of Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD in 2016

Hypertension 62
High Cholesterol 41
Stroke 0
Ischemic Heart Disease 21
Depression 26
Chronic Kidney Disease 49
Asthma 19
Osteoperosis 0
Atrial Fibrilation 0
Heart Failure 16
Chronic Obstructive Pulmonary Disease 0
Diabetes 35
Dementia 0
Cancer 15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Karen McLean, PhD, FACOG, MD treated as a gynecologic oncologist in Buffalo, NY during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen McLean, PhD, FACOG, MD for Medicare patients.

doctor visit 133
hospital care 24
inpatient care 24

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD.

Gender
Male 0
Female 112
Ethnicity
Non-Hispanic White 94
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 61
From 75 to 84 22
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD in 2017

Hypertension 67
High Cholesterol 43
Stroke 0
Ischemic Heart Disease 25
Depression 29
Chronic Kidney Disease 50
Asthma 10
Osteoperosis 10
Atrial Fibrilation 15
Heart Failure 14
Chronic Obstructive Pulmonary Disease 0
Diabetes 34
Dementia 13
Cancer 17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Karen McLean, PhD, FACOG, MD treated as a gynecologic oncologist in Buffalo, NY during 2018 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen McLean, PhD, FACOG, MD for Medicare patients.

doctor visit 160
hospital care 20
inpatient care 20

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD.

Gender
Male 0
Female 109
Ethnicity
Non-Hispanic White 95
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 59
From 75 to 84 25
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD in 2018

Hypertension 70
High Cholesterol 56
Stroke 0
Ischemic Heart Disease 21
Depression 33
Chronic Kidney Disease 50
Asthma 0
Osteoperosis 0
Atrial Fibrilation 14
Heart Failure 14
Chronic Obstructive Pulmonary Disease 11
Diabetes 35
Dementia 15
Cancer 17

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Karen McLean, PhD, FACOG, MD treated as a gynecologic oncologist in Buffalo, NY during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen McLean, PhD, FACOG, MD for Medicare patients.

doctor visit 161
hospital care 23
inpatient care 23

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD.

Gender
Male 0
Female 91
Ethnicity
Non-Hispanic White 74
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 35
From 75 to 84 30
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD in 2019

Hypertension 73
High Cholesterol 56
Stroke 0
Ischemic Heart Disease 22
Depression 42
Chronic Kidney Disease 58
Asthma 16
Osteoperosis 14
Atrial Fibrilation 0
Heart Failure 19
Chronic Obstructive Pulmonary Disease 14
Diabetes 42
Dementia 0
Cancer 22

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Karen McLean, PhD, FACOG, MD treated as a gynecologic oncologist in Buffalo, NY during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Karen McLean, PhD, FACOG, MD for Medicare patients.

doctor visit 131
hospital care 18
inpatient care 18

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD.

Gender
Male 0
Female 81
Ethnicity
Non-Hispanic White 66
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 40
From 75 to 84 23
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD in 2020

Hypertension 64
High Cholesterol 46
Stroke 0
Ischemic Heart Disease 26
Depression 37
Chronic Kidney Disease 44
Asthma 0
Osteoperosis 14
Atrial Fibrilation 0
Heart Failure 19
Chronic Obstructive Pulmonary Disease 15
Diabetes 35
Dementia 16
Cancer 0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Karen McLean, PhD, FACOG, MD for Medicare patients.

doctor visit 129

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD.

Gender
Male 0
Female 80
Age
From 65 to 74 51
From 75 to 84 15
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD in 2021

Hypertension 64
High Cholesterol 51
Stroke 0
Ischemic Heart Disease 25
Depression 35
Chronic Kidney Disease 46
Asthma 0
Osteoperosis 0
Atrial Fibrilation 0
Heart Failure 15
Chronic Obstructive Pulmonary Disease 0
Diabetes 33
Dementia 0
Cancer 19

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Karen McLean, PhD, FACOG, MD for Medicare patients.

doctor visit 109

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD.

Gender
Male 0
Female 92
Age
From 65 to 74 48
From 75 to 84 24
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD in 2022

Hypertension 65
High Cholesterol 58
Stroke 0
Ischemic Heart Disease 16
Depression 29
Chronic Kidney Disease 24
Asthma 0
Osteoperosis 14
Atrial Fibrilation 12
Heart Failure 14
Chronic Obstructive Pulmonary Disease 14
Diabetes 26
Dementia 0
Cancer 40

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Karen McLean, PhD, FACOG, MD for Medicare patients.

The highest averages for the top procedures that Dr. Karen McLean, PhD, FACOG, MD treated as a gynecologic oncologist in Buffalo, NY were hospital care and inpatient care.

doctor visit 145
hospital care 32
inpatient care 32

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD.

Gender
Female 95
Male 0
Ethnicity
Black / African American 0
Asian / Pacific Islander 0
Non-Hispanic White 66
Hispanic 0
Native American / Alaskan Native 0
Other 0
Age
85 and over 0
75 to 84 15
Less than 65 6
65 to 74 50

Average of Total of Conditions of Medicare patients treated by Dr. Karen McLean, PhD, FACOG, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Karen McLean, PhD, FACOG, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension 60
High Cholesterol 42
Stroke 0
Ischemic Heart Disease 21
Depression 29
Chronic Kidney Disease 38
Asthma 7
Osteoporosis 5
Heart Failure 15
Chronic Obstructive Pulmonary Disease 8
Diabetes 32
Atrial Fibrillation 6
Dementia 4
Cancer 14

Education & Training

Dr. Karen McLean, PhD, FACOG, MD graduated from University of Michigan Medical School. She completed residency at University of Michigan Affiliated Hospitals. She is certified by the Gynecologic Oncology - American Board of Obstetrics and Gynecology and has a state license in New York.

Medical School: University of Michigan Medical School

Residency: University of Michigan Affiliated Hospitals

Board Certification: Gynecologic Oncology - American Board of Obstetrics and Gynecology

Licensed In: New York

Affiliations & Hospitals

Dr. Karen McLean, PhD, FACOG, MD is associated with these hospitals and organizations:

Roswell Park Comprehensive Cancer Center
Kaleida Health

Ratings & Reviews

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Biography

Dr. Karen McLean's specialty is gynecologic oncology. Before performing her residency at a hospital affiliated with the University of Michigan, Dr. McLean attended the University of Michigan Medical School. Dr. McLean's clinical interests include fallopian tube cancer, ovarian cancer, and endometrial cancer. She has received the distinction of Department of Defense Ovarian Cancer Academy. Dr. McLean's hospital/clinic affiliations include Roswell Park Comprehensive Cancer Center and Kaleida Health.

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