Mary Louise Collins, M.D.
Ophthalmology Physician · Baltimore, MD
Mary Louise Collins, M.D. is an ophthalmology physician with a practice address in Baltimore, Maryland, and NPI 1063431724, issued on Jul 19, 2006. Check the license (Maryland D44743, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Mary Louise Collins
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- D44743 MD
Self-reported in NPPES; status is on the state search - Practice location
- 6569 N Charles St, Baltimore, MD 21204
- Phone
- (443) 849-2196
- Enumerated
- Jul 19, 2006
- Record last updated
- Dec 7, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 060771100 MD
- Medicare enrollment
- Enrolled (PECOS I20100910000169); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 588 in Maryland → Look up another NPI →
Also registered at 6569 N Charles St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Louise Collins in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D44743Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Greater Baltimore Medical Center IncBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Louise Collins among 588 ophthalmology physician records in Maryland
Mary Louise Collins, M.D. is one of 588 ophthalmology physician records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 44% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1988 · median 2002 among the 369 with a school on file
- Record last updated2011 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Maryland
There are 588 ophthalmology physician records in Maryland.
All 588 in Maryland → Every provider in Baltimore → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Stanley Amernick, M.D.Towson, MD 212041295718203
- Raya Armaly, MDBaltimore, MD 212041326033093
- Nicole Bertram Love, M.D.Towson, MD 212041568416766
- Gary Ehrlich, M.D.Towson, MD 212041144239476
- Sanjay Goel, M.D.Towson, MD 212041265538540
- Allison Jensen, MDBaltimore, MD 212041104924067
- Sudeep Pramanik, MDTowson, MD 212041225020159
- Vivian Rismondo, M.D.Baltimore, MD 212041275571622
Common questions
What is Mary Louise Collins, M.D.'s NPI number?
Mary Louise Collins, M.D.'s National Provider Identifier (NPI) is 1063431724, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Louise Collins, M.D. located?
The NPPES record lists a practice address at 6569 N Charles St, Baltimore, MD, 21204. Phone: (443) 849-2196. Providers update this record themselves, so call before visiting.
How can I verify Mary Louise Collins, M.D.'s license?
NPPES lists Maryland license number D44743, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.