Rebecca Royzer Alpern, MD
Obstetrics & Gynecology Physician · Baltimore, MD
Rebecca Royzer Alpern, MD is an obstetrics & gynecology physician with a practice address in Baltimore, Maryland, and NPI 1942864319, issued on Apr 30, 2019. Check the license (Maryland D0103795, as entered in NPPES) on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Rebecca Royzer Alpern
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- D0103795 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1800 Orleans St, Baltimore, MD 21287
- Phone
- (410) 502-2037
- Enumerated
- Apr 30, 2019
- Record last updated
- Jul 3, 2025
- Fax
- (410) 955-0737
- Medicare enrollment
- Enrolled (PECOS I20250715004235); may accept Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 2021
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,034 in Maryland → Look up another NPI →
Also registered at 1800 Orleans St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kara AbarcarEmergency Medicine Physician1285195123
- Catherine Abbot, CRNPStudent in an Organized Health Care Education/Training Program1942093810
- Ahamed Akmal Abdul Rahman Lebbe, MDStudent in an Organized Health Care Education/Training Program1255208427
- Arielle AbovichStudent in an Organized Health Care Education/Training Program1972122703
- Luis Acosta, MDStudent in an Organized Health Care Education/Training Program1922859537
- Nihmotallahi Adebayo, MDStudent in an Organized Health Care Education/Training Program1033058334
Verify Rebecca Royzer Alpern in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0103795Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Rebecca Royzer Alpern among 1,034 obstetrics & gynecology physician records in Maryland
Rebecca Royzer Alpern, MD 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 2019, is newer than 89% of them.
- NPI issued2019 · 89% of these records are older, 7% newer
- In a Medicare fileNo · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2021 · 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 Baltimore → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Jean Anderson, M.D.Baltimore, MD 212871992769889
- Cynthia Argani, M.D.Baltimore, MD 212871710930821
- Milagros Atienza, M.D.Baltimore, MD 212871265497010
- Jessica Bienstock, M.D.Baltimore, MD 212871790741429
- Jenell Coleman, MD MPHBaltimore, MD 212871104803386
- Alice Cootauco, M.D.Baltimore, MD 212871801843826
- Terri Cornelison, M.D.Baltimore, MD 212871366482341
- Geoffrey Cundiff, M.D.Baltimore, MD 212871730124637
Common questions
What is Rebecca Royzer Alpern, MD's NPI number?
Rebecca Royzer Alpern, MD's National Provider Identifier (NPI) is 1942864319, issued on Apr 30, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Rebecca Royzer Alpern, MD located?
The NPPES record lists a practice address at 1800 Orleans St, Baltimore, MD, 21287. Phone: (410) 502-2037. Providers update this record themselves, so call before visiting.
How can I verify Rebecca Royzer Alpern, MD's license?
NPPES lists Maryland license number D0103795, 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. 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.