Yvonne N. Oseiwe-Williams, MD
Emergency Medicine Physician · Baltimore, MD
Yvonne N. Oseiwe-Williams, MD is an emergency medicine physician with a practice address in Baltimore, Maryland, and NPI 1538301676, issued on Apr 6, 2009. Check the license (Maryland D73679, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Yvonne N. Oseiwe-Williams
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- D73679 MD
25MA09510400 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 20 First Light CT, Baltimore, MD 21237
- Phone
- (443) 742-4516
- Enumerated
- Apr 6, 2009
- Record last updated
- Jun 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140909001717); accepts Medicare assignment
- Medical or professional school
- Pennsylvania State University College Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,190 in Maryland → Look up another NPI →
Verify Yvonne N. Oseiwe-Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D73679Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% more Medicare Part D claims than the average emergency medicine physician in 2024
292 Medicare Part D claims for 194 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 52 claims were for opioids.
Most prescribed
- Ondansetron Odt32 claims
- Oxycodone-Acetaminophen31 claims
- Amoxicillin-Clavulanate Potass26 claims
- Cefdinir13 claims
- Sulfamethoxazole-Trimethoprim13 claims
- Methylprednisolone11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 73.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Emergency Physician Services OF New Jersey,professional AssociationMount Holly, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yvonne N. Oseiwe-Williams among 1,190 emergency medicine physician records in Maryland
Yvonne N. Oseiwe-Williams, MD is one of 1,190 emergency medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 55% of them.
- NPI issued2009 · 55% of these records are older, 42% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2009 · median 2010 among the 571 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
505 emergency medicine physician records list a practice address in Baltimore
They are 505 of the 35,183 NPPES records with a practice address in Baltimore, and 1,190 emergency medicine physician records in Maryland.
All 1,190 in Maryland → Every provider in Baltimore → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Sunil Ahuja, MDBaltimore, MD 212371932256872
- Eric Almli, MDBaltimore, MD 212371881797058
- Morgen Bernius, MDBaltimore, MD 212371154361228
- Eric Chang, MDBaltimore, MD 212371386738821
- David Farnie, MDBaltimore, MD 212371013000546
- Eveline Hitti, MDBaltimore, MD 212371033166533
- Rachel Mallalieu, D.O.Baltimore, MD 212371083629885
- Edana Mann, MDBaltimore, MD 212371891734422
Common questions
What is Yvonne N. Oseiwe-Williams, MD's NPI number?
Yvonne N. Oseiwe-Williams, MD's National Provider Identifier (NPI) is 1538301676, issued on Apr 6, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Yvonne N. Oseiwe-Williams, MD located?
The NPPES record lists a practice address at 20 First Light CT, Baltimore, MD, 21237. Phone: (443) 742-4516. Providers update this record themselves, so call before visiting.
How can I verify Yvonne N. Oseiwe-Williams, MD's license?
NPPES lists Maryland license number D73679, 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.
How much does Yvonne N. Oseiwe-Williams, MD prescribe under Medicare Part D?
In 2024, Yvonne N. Oseiwe-Williams, MD had 292 Medicare Part D claims for 194 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Yvonne N. Oseiwe-Williams, MD's MIPS final score?
The 2023 MIPS final score is 73.6 of 100. 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.