Mary Kathryn Collins, D.O.
Obstetrics & Gynecology Physician · Bethesda, MD
Mary Kathryn 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 Kathryn 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
- Record last updated
- Jul 28, 2025
- Medicare enrollment
- Enrolled (PECOS I20260207000769); may accept Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2016
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,034 in Maryland → Look up another NPI →
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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Verify Mary Kathryn 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
Mary Kathryn Collins among 1,034 obstetrics & gynecology physician records in Maryland
Mary Kathryn Collins, D.O. is one of 1,034 obstetrics & gynecology physician records with a practice address in Maryland. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2016, is newer than 83% of them.
- NPI issued2016 · 83% of these records are older, 14% newer
- In a Medicare fileNo · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2016 · median 2005 among the 597 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Maryland
There are 1,034 obstetrics & gynecology physician records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,034 in Maryland → Every provider in Bethesda → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Jill Brown, M.D.Bethesda, MD 208891407831902
- Rebecca Chason, M.D.Bethesda, MD 208891477696003
- Christine Dorr, M.D.Bethesda, MD 208891871567123
- Susan Dunlow, M.D.Bethesda, MD 208891053384446
- William Haffner, M.D.Bethesda, MD 208891871594291
- Ernest Lockrow, DOBethesda, MD 208891043334808
- Michelle Lyons, M.D.Bethesda, MD 208891174724397
- Hugh Mackay, M.D.Bethesda, MD 208891346232261
Common questions
What is Mary Kathryn Collins, D.O.'s NPI number?
Mary Kathryn 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 Kathryn 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 Kathryn 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), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.