Mary Collins, D.O.
Obstetrics & Gynecology Physician · Bethesda, MD
Mary Collins, D.O. is an obstetrics & gynecology physician with a practice address in Bethesda, Maryland, and NPI 1821446196, issued on May 27, 2016. Check the license on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mary Collins
- Credential
- D.O.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 0102205111 VA
Self-reported in NPPES; status is on the state search - Practice location
- Walter Reed National Military Medical Center, Bethesda, MD 20889
- Phone
- (301) 295-2045
- Enumerated
- May 27, 2016
- Entity
- Type 1 · individual
Also registered at Walter Reed National Military Medical Center
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gregory Chesnut, M.D.Urology Physician1265752547
- Justin Cordova, MDAnesthesiology Physician1952989410
Verify Mary Collins in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Obstetrics & Gynecology Physician providers in Maryland
There are 1,005 obstetrics & gynecology physician records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other obstetrics & gynecology physician records in Maryland
- Fouad AbbasBaltimore, MD1023087699
- Alexandra Abbate, MDBaltimore, MD1194287003
- Basma Abdo, M.DBaltimore, MD1922302652
- Tolani Abdulkadir, MDBaltimore, MD1699734293
- Sozdar Abed, MDEaston, MD1356572390
- Sandra Abraham-Hebert, M.D.Silver Spring, MD1487603080
- Francoise Abrams, MDClarksville, MD1477527448
- Silvia Abularach, M.D.Waldorf, MD1427341593
- Debra Acerenza, D.O.Frederick, MD1932181781
- Christopher Ackerman, DO, MBSCumberland, MD1356875843
Common questions
What is Mary Collins, D.O.'s NPI number?
Mary Collins, D.O.'s National Provider Identifier (NPI) is 1821446196, issued on May 27, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Mary Collins, D.O. located?
The NPPES record lists a practice address at Walter Reed National Military Medical Center, Bethesda, MD, 20889. Phone: (301) 295-2045. Providers update this record themselves, so call before visiting.
How can I verify Mary Collins, D.O.'s license?
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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.