Doctor profile · Federal record
Dr. Yvonne Oseiwe-Williams, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Baltimore, MD
- NPI 1538301676
- Accepts Medicare
- MIPS 65.5 / 100 · 2023
- 17 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
20 First Light CT
Baltimore, MD 212372166
(443) 742-4516
Credentials & registration
- NPI registered
- April 2009 — 17 yrs on file
- Profile last updated
- June 16, 2021
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Maryland #D73679 · New Jersey #25MA09510400
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538301676. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
650
Distinct HCPCS
4
Medicare allowed
$101,914
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 413 | 382 | $182 | |
99284 |
Emergency department visit with moderate level of medical decision making | 183 | 178 | $125 | |
99283 |
Emergency department visit with low level of medical decision making | 41 | 39 | $75 | |
99282 |
Emergency department visit with straightforward medical decision making | 13 | 13 | $43 |
In context: peer comparison
Among 176 peers in this city , average services per provider: 92. This provider delivers 7.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
150
Patients
150
Total drug cost
$1,381
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 36 | 36 | $100 |
| Ondansetron Odt (Ondansetron) | Brand | 31 | 31 | $343 |
| Cefdinir | Generic | 23 | 23 | $679 |
| Ibuprofen | Generic | 19 | 19 | $32 |
| Dicyclomine Hcl | Generic | 18 | 18 | $91 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 12 | 12 | $109 |
| Prednisone | Generic | 11 | 11 | $27 |
Hospital affiliations
Frequently asked questions
What is Dr. Yvonne Oseiwe-Williams's medical specialty?
Dr. Yvonne Oseiwe-Williams practices Emergency Medicine Physician in Baltimore, MD.
Where does Dr. Yvonne Oseiwe-Williams practice?
Dr. Yvonne Oseiwe-Williams practices at 20 First Light CT, Baltimore, MD 212372166. Office phone: 4437424516.
What is Dr. Yvonne Oseiwe-Williams's NPI?
Dr. Yvonne Oseiwe-Williams's National Provider Identifier (NPI) is 1538301676, issued by NPPES.
Does Dr. Yvonne Oseiwe-Williams accept Medicare assignment?
Yes. Dr. Yvonne Oseiwe-Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Yvonne Oseiwe-Williams commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.