What is Mara Rosner's NPI number?

Mara Rosner's National Provider Identifier (NPI) is 1831392992, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mara Rosner's specialty?

Mara Rosner is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).

Where is Mara Rosner located?

Mara Rosner's practice location on file with NPPES is 600 North Wolfe Street, Baltimore, MD 21236-4902.

What is Mara Rosner's phone number?

The practice phone number listed in the NPPES registry for Mara Rosner is (443) 287-9545.

Does Mara Rosner accept Medicare?

Mara Rosner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Mara Rosner's NPI active?

Yes — Mara Rosner's NPI (1831392992) is active in the NPPES registry as of the last update on 2018-08-29.

IndividualActiveAccepts Medicare

Mara Rosner, M.D. M.P.H.

NPI 1831392992 · Obstetrics & Gynecology Physician · Baltimore, MD

Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Mara Rosner, M.D. M.P.H. is a Obstetrics & Gynecology Physician provider in Baltimore, MD (NPI 1831392992).

Provider details

NPI number: 1831392992
Entity type: Individual
Primary specialty: Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D. M.P.H.
Sex: Female
Sole proprietor: No
License: 240424-1 (NY)

Specialties & taxonomies

Obstetrics & Gynecology PhysicianPrimary207V00000XLicense D85904 (MD)
Allopathic & Osteopathic Physicians
Obstetrics & Gynecology Physician207V00000XLicense 240424-1 (NY)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(94/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
2 documented practice locations

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

600 North Wolfe Street

Nelson 228

Baltimore, MD 21236-4902

Phone: (443) 287-9545

Fax: (410) 614-1617

Street-level locationGet directions

More MD providers

Mailing address

9910 Franklin Square Dr Ste 2110

Baltimore, MD 21236-4902

Additional practice locations (1)

1300 Morris Park Ave
Belfer 501
Bronx, NY 10461-1900
Phone: (718) 430-3204
Fax: (718) 430-8750

Enumerated: 2007-06-07
Last updated: 2018-08-29

Frequently asked questions

What is Mara Rosner's NPI number?: Mara Rosner's National Provider Identifier (NPI) is 1831392992, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Mara Rosner's specialty?: Mara Rosner is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
Where is Mara Rosner located?: Mara Rosner's practice location on file with NPPES is 600 North Wolfe Street, Baltimore, MD 21236-4902.
What is Mara Rosner's phone number?: The practice phone number listed in the NPPES registry for Mara Rosner is (443) 287-9545.
Does Mara Rosner accept Medicare?: Mara Rosner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Mara Rosner's NPI active?: Yes — Mara Rosner's NPI (1831392992) is active in the NPPES registry as of the last update on 2018-08-29.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.