Geralyn C. O'Reilly, M.D.
Maternal & Fetal Medicine Physician · Baltimore, MD
Geralyn C. O'Reilly, M.D. is a maternal & fetal medicine physician with a practice address in Baltimore, Maryland, and NPI 1548348485, issued on Nov 1, 2006. Check the license (Maryland D0065235, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Geralyn C. O'Reilly
- Credential
- M.D.
- Primary taxonomy
- Maternal & Fetal Medicine Physician 207VM0101X
- License number
- D0065235 MD
Self-reported in NPPES; status is on the state search - Practice location
- 419 W Redwood St Ste 500, Baltimore, MD 21201
- Phone
- (667) 214-1300
- Enumerated
- Nov 1, 2006
- Record last updated
- May 29, 2025
- Fax
- (410) 328-2648
- Medicaid ID
- 012862700 MD
- Medicare enrollment
- Enrolled (PECOS I20070228000281); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 1994
- Entity
- Type 1 · individual
8 nearest maternal & fetal medicine physician records → All 66 in Maryland → Look up another NPI →
Also registered at 419 W Redwood St Ste 500
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Suzanne Abdelazim, D.O.Obstetrics Physician1093249088
- Allison BinghamWomen's Health Nurse Practitioner1356924401
- Irina Burd, MD, PHDMaternal & Fetal Medicine Physician1902013600
- Jude Crino, M.D.Maternal & Fetal Medicine Physician1184664278
- Genevieve Giffin, CNMAdvanced Practice Midwife1417693730
- Katelyn Holmes, CNMAdvanced Practice Midwife1841935772
Verify Geralyn C. O'Reilly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0065235Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 76.6 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- St Paul Place Specialists, Inc.Baltimore, MD
- University OF Maryland Obstetrical And Gynecological Associates PABaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Geralyn C. O'Reilly among 66 maternal & fetal medicine physician records in Maryland
Geralyn C. O'Reilly, M.D. is one of 66 maternal & fetal medicine physician records with a practice address in Maryland. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 42% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1994 · median 2000 among the 42 with a school on file
- Record last updated2025 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Maternal & Fetal Medicine Physician providers in Maryland
There are 66 maternal & fetal medicine physician records in Maryland.
All 66 in Maryland → Every provider in Baltimore → Maternal & Fetal Medicine Physician nationwide →
The 8 maternal & fetal medicine physician records with the nearest ZIP codes
- Irina Burd, MD, PHDBaltimore, MD 212011902013600
- Sarah Crimmins, DOBaltimore, MD 212011033350947
- Jude Crino, M.D.Baltimore, MD 212011184664278
- Andrea Desai, MDBaltimore, MD 212011386943918
- Christopher Harman, MDBaltimore, MD 212011962447482
- Rebecca Jessel, MDBaltimore, MD 212011033433016
- Jerome Kopelman, MDBaltimore, MD 212011457389728
- Allison Lankford, M.D.Baltimore, MD 212011639434087
Common questions
What is Geralyn C. O'Reilly, M.D.'s NPI number?
Geralyn C. O'Reilly, M.D.'s National Provider Identifier (NPI) is 1548348485, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Geralyn C. O'Reilly, M.D. located?
The NPPES record lists a practice address at 419 W Redwood St Ste 500, Baltimore, MD, 21201. Phone: (667) 214-1300. Providers update this record themselves, so call before visiting.
How can I verify Geralyn C. O'Reilly, M.D.'s license?
NPPES lists Maryland license number D0065235, 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 Geralyn C. O'Reilly, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.6 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.