NPPES file of Aug 9, 2026

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

Obstetrics & Gynecology Physician · Baltimore, MD

Mara Rosner, M.D. M.P.H. is an obstetrics & gynecology physician with a practice address in Baltimore, Maryland, and NPI 1831392992, issued on Jun 7, 2007. Check the license (Maryland D85904, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831392992
Name
Mara Rosner
Credential
M.D. M.P.H.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
D85904 MD
240424-1 NY
Self-reported in NPPES; status is on the state search
Practice location
600 North Wolfe Street, Baltimore, MD 21236
Phone
(443) 287-9545
Enumerated
Jun 7, 2007
Record last updated
Aug 29, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(410) 614-1617
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Mara Rosner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D85904
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 74.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score64.7
  2. Costout of 100 · 30%52.4
  3. Promoting interoperabilityout of 100 · 25%97.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Mara Rosner among 1,034 obstetrics & gynecology physician records in Maryland

Mara Rosner, M.D. M.P.H. 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. Its NPI, issued in 2007, is newer than 47% of them.

  • NPI issued2007 · 47% of these records are older, 42% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2018 · 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.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Claire Bolander, M.D.Nottingham, MD 212361467692632
  2. Christina Boyd, MDNottingham, MD 212361699064758
  3. Arthur Nauman, M.D.Baltimore, MD 212361083777379
  4. Lauren Rabin Blair, MDNottingham, MD 212361720280621
  5. Lauren Ramos AlarconNottingham, MD 212361952789109
  6. Christine Sohn Woo, M.D.Nottingham, MD 212361023158425
  7. Susan Willard, MDBaltimore, MD 212361851459804
  8. Georgette BibumBaltimore, MD 212371437126299

Common questions

What is Mara Rosner, M.D. M.P.H.'s NPI number?

Mara Rosner, M.D. M.P.H.'s National Provider Identifier (NPI) is 1831392992, issued on Jun 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mara Rosner, M.D. M.P.H. located?

The NPPES record lists a practice address at 600 North Wolfe Street, Baltimore, MD, 21236. Phone: (443) 287-9545. Providers update this record themselves, so call before visiting.

How can I verify Mara Rosner, M.D. M.P.H.'s license?

NPPES lists Maryland license number D85904, 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.

What is Mara Rosner, M.D. M.P.H.'s MIPS final score?

The 2023 MIPS final score is 74.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.