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Home > MD Providers > Ophthalmologists

Dr. Mary Louise Z. Collins, MD

(Dr. Mary Louise Collins, M.D.)

(4 Ratings)

Specializes in: Ophthalmology (Eye Disease)

Georgetown University School of Medicine

6569 N. Charles Street Pavilion West Suite 505
Towson, MD 21204

(443) 849-2106

Dr. Mary Louise Z. Collins, MD is an ophthalmologist in Baltimore, MD specializing in ophthalmology (eye disease). She graduated from Georgetown University School of Medicine. Dr. Mary Louise Z. Collins, MD is affiliated with GBMC Healthcare.

Office Locations

6569 N Charles Street Suite 505
Baltimore, MD 21204

(443) 849-2196

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GBMC Healthcare

6569 N. Charles Street Pavilion West Suite 505
Towson, MD 21204

(443) 849-2106

open_in_new

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

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

Top 5%

By Affordability:

eye procedures

In 2023, Dr. Mary Louise Z. Collins, MD had a list price for eye procedures that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Maryland. 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 Volume:

ophthalmic ultrasound

In 2012, Dr. Mary Louise Z. Collins, MD performed more ophthalmic ultrasound procedures for Medicare patients than 75% of providers in related specialties within Maryland.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Z. Collins, MD treated as an ophthalmologist in Baltimore, MD during 2012 were eye procedures.

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

doctor visit	27
eye procedures	13

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Z. Collins, MD treated as an ophthalmologist in Baltimore, MD during 2013 were eye procedures.

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

doctor visit	24
eye procedures	14

2013 Medicare Patient Data

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

**Gender**
Male	14
Female	22

**Age**
From 65 to 74	14
From 75 to 84	0
85 and over	0
Less than 65	0

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

Hypertension	44
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	31
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

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

doctor visit	33

2014 Medicare Patient Data

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

**Gender**
Male	15
Female	21

**Age**
From 65 to 74	14
From 75 to 84	0
85 and over	0
Less than 65	0

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

Hypertension	47
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

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

doctor visit	27

2015 Medicare Patient Data

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

**Gender**
Male	30
Female	42

**Age**
From 65 to 74	30
From 75 to 84	0
85 and over	0
Less than 65	0

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

Hypertension	61
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

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

doctor visit	26

2016 Medicare Patient Data

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

**Gender**
Male	20
Female	35

**Age**
From 65 to 74	20
From 75 to 84	20
85 and over	0
Less than 65	0

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

Hypertension	71
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	40
Depression	27
Chronic Kidney Disease	20
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

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

doctor visit	22

2017 Medicare Patient Data

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

**Gender**
Male	30
Female	41

**Age**
From 65 to 74	0
From 75 to 84	24
85 and over	22
Less than 65	0

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

Hypertension	63
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	35
Depression	23
Chronic Kidney Disease	15
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	18
Chronic Obstructive Pulmonary Disease	0
Diabetes	23
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

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

doctor visit	15

2018 Medicare Patient Data

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

**Gender**
Male	41
Female	56

**Age**
From 65 to 74	32
From 75 to 84	38
85 and over	0
Less than 65	0

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

Hypertension	60
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	30
Depression	24
Chronic Kidney Disease	22
Asthma	0
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	15
Chronic Obstructive Pulmonary Disease	0
Diabetes	27
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

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

doctor visit	18

2019 Medicare Patient Data

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

**Gender**
Male	34
Female	63

**Ethnicity**
Non-Hispanic White	83
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	36
From 75 to 84	33
85 and over	17
Less than 65	11

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

Hypertension	68
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	34
Depression	27
Chronic Kidney Disease	21
Asthma	0
Osteoperosis	14
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	11
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Patient Data

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

**Gender**
Male	31
Female	55

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

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

Hypertension	62
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	37
Depression	27
Chronic Kidney Disease	24
Asthma	0
Osteoperosis	13
Atrial Fibrilation	19
Heart Failure	16
Chronic Obstructive Pulmonary Disease	0
Diabetes	24
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Z. Collins, MD treated as an ophthalmologist in Baltimore, MD during 2021 were ultrasound (sonogram) and eye procedures.

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

eye procedures	109
ultrasound (sonogram)	109

2021 Medicare Patient Data

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

**Gender**
Male	73
Female	125

**Ethnicity**
Non-Hispanic White	164
Black	20
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	79
From 75 to 84	88
85 and over	0
Less than 65	0

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

Hypertension	65
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	32
Depression	20
Chronic Kidney Disease	23
Asthma	0
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	8
Diabetes	27
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Z. Collins, MD treated as an ophthalmologist in Baltimore, MD during 2022 were eye procedures and ultrasound (sonogram).

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

doctor visit	64
eye procedures	181
ultrasound (sonogram)	168

2022 Medicare Patient Data

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

**Gender**
Male	117
Female	170

**Ethnicity**
Non-Hispanic White	234
Black	33
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	113
From 75 to 84	131
85 and over	32
Less than 65	11

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

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	25
Depression	21
Chronic Kidney Disease	16
Asthma	7
Osteoperosis	19
Atrial Fibrilation	15
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	6
Cancer	18

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mary Louise Z. Collins, MD treated as an ophthalmologist in Baltimore, MD during 2023 were eye procedures and ultrasound (sonogram).

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

doctor visit	128
eye procedures	173
ultrasound (sonogram)	160

2023 Medicare Patient Data

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

**Gender**
Male	114
Female	160

**Ethnicity**
Non-Hispanic White	233
Black	25
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	93
From 75 to 84	134
85 and over	0
Less than 65	0

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

Hypertension	74
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	22
Depression	23
Chronic Kidney Disease	19
Asthma	9
Osteoperosis	20
Atrial Fibrilation	13
Heart Failure	5
Chronic Obstructive Pulmonary Disease	12
Diabetes	22
Dementia	5
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

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

The highest averages for the top procedures that Dr. Mary Louise Z. Collins, MD treated as an ophthalmologist in Baltimore, MD were ultrasound (sonogram) and eye procedures.

doctor visit	38
eye procedures	98
ultrasound (sonogram)	145

Average Medicare Patient Data From 2012 - 2023

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

**Gender**
Male	43
Female	65

**Ethnicity**
Black / African American	6
Asian / Pacific Islander	0
Non-Hispanic White	59
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	7
75 to 84	41
Less than 65	1
65 to 74	35

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

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

Hypertension	57
High Cholesterol	54
Stroke	1
Ischemic Heart Disease	23
Depression	16
Chronic Kidney Disease	13
Asthma	1
Osteoporosis	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	2
Diabetes	16
Atrial Fibrillation	7
Cancer	6
Dementia	2

Education & Training

Dr. Mary Louise Z. Collins, MD graduated from Georgetown University School of Medicine. She completed residency at Wills Eye Institute. She has a state license in Maryland.

Medical School: Georgetown University School of Medicine

Residency: Wills Eye Institute

Licensed In: Maryland

Affiliations & Hospitals

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

GBMC Healthcare

Ratings & Reviews

Dr. Mary Louise Z. Collins, MD has an exceptional overall rating with an average of 4.63 out of 5 stars based on 4 ratings. We collect ratings and reviews of Dr. Mary Louise Z. Collins, MD from all over the web to help you find the right in Baltimore, MD.

4.63

Overall Rating

(4 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Horizon Therapeutics plc	$47 TEPEZZA $16	$31
Carl Zeiss Meditec AG	$19 None Specified $19
Shire North American Group Inc	$15 XIIDRA $15
Retrophin, Inc.	$1 (820) Cholbam $1

**Types of Payments**
Food and Beverage	$62
Gift	$19
Education	$1

Biography

Dr. Mary Louise Collins is a specialist in ophthalmology (eye disease). Dr. Collins is professionally affiliated with GBMC Healthcare. She is a graduate of Georgetown University School of Medicine and a graduate of Wills Eye Institute's residency program.

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Dr. Mary Louise Z. Collins, MD

Office Locations

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

By Affordability:

By Volume:

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 Z. Collins, 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 Z. Collins, 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 Z. Collins, 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 Z. Collins, 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 Z. Collins, 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 Z. Collins, 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 Z. Collins, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mary Louise Z. Collins, 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 Z. Collins, 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 Z. Collins, 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 Z. Collins, 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 Z. Collins, MD From 2012 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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