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Home > NY Providers > Surgical Dermatologists

Dr. Mary Louise Lenahan, MD

Accepting New Patients

(Dr. Mary Louise Lenahan, MD)

(40 Ratings)

Specializes in: Surgical Dermatology

2157 Main Street
Buffalo, NY 14214

(716) 862-1000

Dr. Mary Louise Lenahan, MD is a surgical dermatologist in Buffalo, NY specializing in surgical dermatology. Dr. Mary Louise Lenahan, MD is affiliated with Sisters of Charity Hospital and Catholic Health System.

Office Locations

Catholic Health System

2157 Main Street
Buffalo, NY 14214

(716) 862-1000

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2900 Main Street
Buffalo, NY 14214

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6507 Transit Road
East Amherst, NY 14051

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Noteworthy Medicare Patient Procedures Performed by Dr. Mary Louise Lenahan, MD in 2023

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

Top 25%

By Affordability:

removal of benign skin lesion

In 2012, Dr. Mary Louise Lenahan, MD had a list price for removal of benign (non-cancerous) skin lesion that was lower than the list prices billed to Medicare by 75% 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. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY during 2012 were skin procedures, removal of lesion (e.g. growth), diagnostic procedures and phototherapy (light therapy).

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

diagnostic procedures	180
doctor visit	504
phototherapy (light therapy)	39
removal of lesion (e.g. growth)	322
skin procedures	361

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY during 2013 were skin procedures, removal of lesion (e.g. growth), diagnostic procedures and phototherapy (light therapy).

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

diagnostic procedures	156
doctor visit	431
phototherapy (light therapy)	27
removal of lesion (e.g. growth)	270
skin procedures	297

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Louise Lenahan, MD.

**Gender**
Male	109
Female	217

**Ethnicity**
Non-Hispanic White	312
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	174
From 75 to 84	87
85 and over	47
Less than 65	18

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2013

Hypertension	65
High Cholesterol	58
Stroke	4
Ischemic Heart Disease	28
Depression	14
Chronic Kidney Disease	10
Asthma	4
Osteoperosis	6
Atrial Fibrilation	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	20
Dementia	5
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY during 2014 were skin procedures, removal of lesion (e.g. growth), diagnostic procedures and phototherapy (light therapy).

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

diagnostic procedures	199
doctor visit	525
phototherapy (light therapy)	34
removal of lesion (e.g. growth)	298
skin procedures	332

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Louise Lenahan, MD.

**Gender**
Male	124
Female	242

**Ethnicity**
Non-Hispanic White	350
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	201
From 75 to 84	96
85 and over	46
Less than 65	23

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2014

Hypertension	60
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	27
Depression	13
Chronic Kidney Disease	13
Asthma	5
Osteoperosis	5
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	20
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY during 2015 were skin procedures, removal of lesion (e.g. growth), diagnostic procedures and phototherapy (light therapy).

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

diagnostic procedures	179
doctor visit	487
phototherapy (light therapy)	36
removal of lesion (e.g. growth)	249
skin procedures	285

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Louise Lenahan, MD.

**Gender**
Male	244
Female	468

**Ethnicity**
Non-Hispanic White	682
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	388
From 75 to 84	184
85 and over	96
Less than 65	44

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2015

Hypertension	62
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	25
Depression	14
Chronic Kidney Disease	13
Asthma	8
Osteoperosis	7
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	19
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY during 2016 were skin procedures, removal of lesion (e.g. growth), diagnostic procedures and phototherapy (light therapy).

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

diagnostic procedures	110
doctor visit	428
phototherapy (light therapy)	25
removal of lesion (e.g. growth)	203
skin procedures	228

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Louise Lenahan, MD.

**Gender**
Male	111
Female	214

**Ethnicity**
Non-Hispanic White	313
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	88
85 and over	38
Less than 65	16

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2016

Hypertension	62
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	26
Depression	15
Chronic Kidney Disease	17
Asthma	13
Osteoperosis	5
Atrial Fibrilation	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	23
Dementia	4
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY during 2017 were skin procedures, removal of lesion (e.g. growth), diagnostic procedures and phototherapy (light therapy).

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

diagnostic procedures	150
doctor visit	421
phototherapy (light therapy)	20
removal of lesion (e.g. growth)	229
skin procedures	249

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Louise Lenahan, MD.

**Gender**
Male	104
Female	209

**Ethnicity**
Non-Hispanic White	296
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	164
From 75 to 84	84
85 and over	49
Less than 65	16

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2017

Hypertension	64
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	27
Depression	16
Chronic Kidney Disease	19
Asthma	9
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	8
Diabetes	24
Dementia	7
Cancer	16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY during 2018 were removal of lesion (e.g. growth), skin procedures and diagnostic procedures.

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

diagnostic procedures	159
doctor visit	460
removal of lesion (e.g. growth)	240
skin procedures	240

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Louise Lenahan, MD.

**Gender**
Male	114
Female	241

**Ethnicity**
Non-Hispanic White	336
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	182
From 75 to 84	107
85 and over	51
Less than 65	15

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2018

Hypertension	64
High Cholesterol	64
Stroke	4
Ischemic Heart Disease	29
Depression	17
Chronic Kidney Disease	22
Asthma	10
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	19
Dementia	6
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY during 2019 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

doctor visit	441
removal of lesion (e.g. growth)	232
skin procedures	232

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Louise Lenahan, MD.

**Gender**
Male	100
Female	226

**Ethnicity**
Non-Hispanic White	307
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	169
From 75 to 84	100
85 and over	45
Less than 65	12

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2019

Hypertension	65
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	29
Depression	19
Chronic Kidney Disease	25
Asthma	10
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	13
Diabetes	19
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY during 2020 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

doctor visit	101
removal of lesion (e.g. growth)	45
skin procedures	45

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Louise Lenahan, MD.

**Gender**
Male	31
Female	76

**Age**
From 65 to 74	52
From 75 to 84	37
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2020

Hypertension	67
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	32
Depression	15
Chronic Kidney Disease	27
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	21
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY during 2021 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

doctor visit	357
removal of lesion (e.g. growth)	181
skin procedures	181

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Louise Lenahan, MD.

**Gender**
Male	103
Female	207

**Ethnicity**
Non-Hispanic White	289
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	143
From 75 to 84	112
85 and over	39
Less than 65	16

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2021

Hypertension	66
High Cholesterol	70
Stroke	0
Ischemic Heart Disease	25
Depression	16
Chronic Kidney Disease	29
Asthma	7
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	6
Diabetes	18
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY during 2022 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

doctor visit	380
removal of lesion (e.g. growth)	192
skin procedures	192

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Louise Lenahan, MD.

**Gender**
Male	86
Female	223

**Ethnicity**
Non-Hispanic White	285
Black	0
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	137
From 75 to 84	120
85 and over	37
Less than 65	15

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2022

Hypertension	66
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	20
Depression	14
Chronic Kidney Disease	27
Asthma	12
Osteoperosis	16
Atrial Fibrilation	17
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	19
Dementia	4
Cancer	17

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY during 2023 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

doctor visit	369
removal of lesion (e.g. growth)	186
skin procedures	186

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Louise Lenahan, MD.

**Gender**
Male	88
Female	201

**Ethnicity**
Non-Hispanic White	274
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	141
From 75 to 84	115
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2023

Hypertension	69
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	19
Depression	18
Chronic Kidney Disease	27
Asthma	16
Osteoperosis	18
Atrial Fibrilation	12
Heart Failure	7
Chronic Obstructive Pulmonary Disease	11
Diabetes	19
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Mary Louise Lenahan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mary Louise Lenahan, MD treated as a surgical dermatologist in Buffalo, NY were skin procedures, removal of lesion (e.g. growth), diagnostic procedures and phototherapy (light therapy).

diagnostic procedures	161
doctor visit	408
phototherapy (light therapy)	30
removal of lesion (e.g. growth)	220
skin procedures	235

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Mary Louise Lenahan, MD.

**Gender**
Female	210
Male	101

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	287
Hispanic	0
Native American / Alaskan Native	0
Other	1

**Age**
85 and over	37
75 to 84	94
Less than 65	14
65 to 74	161

Average of Total of Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD From 2012 - 2023

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

Hypertension	59
High Cholesterol	58
Stroke	1
Ischemic Heart Disease	23
Depression	14
Chronic Kidney Disease	19
Asthma	7
Osteoporosis	8
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	18
Atrial Fibrillation	8
Dementia	3
Cancer	12

Education & Training

She has a state license in New York.

Licensed In: New York

Affiliations & Hospitals

Dr. Mary Louise Lenahan, MD is associated with these hospitals and organizations:

Sisters of Charity Hospital

Catholic Health System

Ratings & Reviews

Dr. Mary Louise Lenahan, MD has a high overall rating with an average of 3.91 out of 5 stars based on 40 ratings. We collect ratings and reviews of Dr. Mary Louise Lenahan, MD from all over the web to help you find the right in Buffalo, NY.

3.91

Overall Rating

(40 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Valeant Pharmaceuticals North America LLC	$4,247 ONEXTON $3,500	JUBLIA $200	SOLODYN $125	ATRALIN $62	RETIN-A-MICRO $58	Other $302
Ranbaxy Inc.	$4,073 $4,073
AbbVie Inc.	$1,603 Skyrizi $1,191	Humira $218	Rinvoq $186	$8
Galderma Laboratories, L.P.	$1,596 ORACEA $350	EPIDUO FORTE $250	SOOLANTRA $231	EPIDUO $132	AKLIEF $103	Other $530
Allergan Inc.	$1,402 ACZONE $946	RHOFADE $100	TAZORAC $98	RESTASIS $32	NATRELLE IMPLANTS $16	Other $211
Other	$13,893 Otezla $1,431	COSENTYX $1,173	EUCRISA $1,038	DUPIXENT $768	ILUMYA $520	Other $8,964

**Types of Payments**
Food and Beverage	$19,508
Honoraria	$2,650
Compensation for serving as faculty or as a speaker for a non-accredited and noncertified continuing education program	$2,200
Education	$1,519
Travel and Lodging	$938

Biography

Dr. Mary Lenahan is a specialist in surgical dermatology. Dr. Lenahan's patients gave her an average rating of 4.0 stars (out of 5). She is professionally affiliated with Sisters of Charity Hospital. She has an open panel in Buffalo, NY according to Catholic Health.

Select Year:

Dr. Mary Louise Lenahan, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Mary Louise Lenahan, MD in 2023

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. Mary Louise Lenahan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Mary Louise Lenahan, MD From 2012 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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