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REBECCA ROYZER ALPERN MD
NPI 1942864319
Obstetrics & Gynecology in Baltimore, MD

Active since April 30, 2019PECOS Enrolled
1800 ORLEANS ST, BALTIMORE, MD 21287(410) 502-2037(410) 955-0737 Get Directions Write a Review

NPPES record last updated: July 3, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 3, 2025, May 19, 2025, Apr 26, 2021 and 1 more (4 updates tracked since 2019).

About Rebecca Royzer Alpern Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

REBECCA ROYZER ALPERN MD (NPI 1942864319) is an individual obstetrics & gynecology provider in Baltimore, Maryland, licensed in Maryland (D0103795) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Washington, and is a graduate of University Of Rochester School Of Medicine And Dentistry (2021).

NPPES Registry Identity

NPI1942864319
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameREBECCA ROYZER ALPERNCredential: MD
Location Address1800 ORLEANS STBaltimore, MD 21287-0010
Mailing Address6201 Greenleigh AveMiddle River, MD 21220-2004 · (410) 933-0000 · Fax (410) 500-4266
Phone(410) 502-2037
Fax(410) 955-0737
Sole ProprietorNo
Medical School CMSUniversity Of Rochester School Of Medicine And DentistryGraduated 2021
Enumeration DateApril 30, 2019
Last NPPES UpdateJuly 3, 20254 updates tracked since enumeration
NPPES CertifiedJuly 3, 2025
✔ NPI 1942864319 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in MD · D0103795
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1800 ORLEANS ST, Baltimore, MD 21287
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Other Names 1

Former Name (1)Rebecca Royzer Md

Secondary Practice Location 1

Location 12150 Pennsylvania Ave NWWashington, DC 20037-3201 · Phone (585) 275-2100

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rebecca Royzer Alpern Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1456866755
PECOS Enrollment IDI20250715004235
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21287 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KATHRYN ROSENBLATT M.D.
Anesthesiology
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-7461
DR. CARMEL BOGLE M.D.
Pediatrics
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (443) 287-0526
MIAN MOHAMMAD BILAL KHALID MD
Internal Medicine (Gastroenterology)
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000
SPENCER WILSON
Surgery (Trauma Surgery)
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 933-6423
EVAN FOX
Radiology (Neuroradiology)
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000
ADAM ROBERT BUSSELLS
Physician Assistant
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000
DR. SARAH WALSER MD
Student in an Organized Health Care Education/Training Program
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (484) 883-6433
LYNN DESROSIERS FNP-C
Nurse Practitioner (Family)
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-2800

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rebecca Alpern's NPI number?

The NPI number for Rebecca Alpern is 1942864319. It was assigned to this individual provider in the NPPES registry on April 30, 2019. The provider is also known as Rebecca Royzer MD.

Where is Rebecca Alpern located?

Rebecca Alpern practices at 1800 Orleans St, Baltimore, MD 21287. The listed phone number is (410) 502-2037.

What is Rebecca Alpern's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Rebecca Alpern enrolled in Medicare?

Yes. Rebecca Alpern is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Rebecca Alpern was last updated on July 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.