Doctor profile · Federal record
Dr. Otis Warren, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medical Services (Emergency Medicine) Physician · Providence, RI
- NPI 1285898890
- Accepts Medicare
- 21 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
593 Eddy St
Providence, RI 029034923
(401) 519-1604
fax (401) 272-0538 - Mailing address
-
Po Box 9484
Providence, RI 029409484
Credentials & registration
- NPI registered
- July 2008 — 18 yrs on file
- Profile last updated
- February 5, 2010
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Rhode Island #MD12935 · California #A98804
- Medicaid (2)
- RI #OW76308 · MA #11082647A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1285898890. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
315
Distinct HCPCS
4
Medicare allowed
$49,673
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 186 | 180 | $177 | |
99284 |
Emergency department visit with moderate level of medical decision making | 82 | 82 | $122 | |
99291 |
Critical care, first 30-74 minutes | 24 | 24 | $215 | |
99283 |
Emergency department visit with low level of medical decision making | 23 | 23 | $72 |
In context: peer comparison
Among 91 peers in this city , average services per provider: 77. This provider delivers 4.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
67
Patients
67
Total drug cost
$255
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ibuprofen | Generic | 19 | 19 | $89 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 17 | 17 | $27 |
| Prednisone | Generic | 17 | 17 | $49 |
| Cephalexin | Generic | 14 | 14 | $90 |
Hospital affiliations
Frequently asked questions
What is Dr. Otis Warren's medical specialty?
Dr. Otis Warren practices Emergency Medicine Physician in Providence, RI.
Where does Dr. Otis Warren practice?
Dr. Otis Warren practices at 593 Eddy St, Providence, RI 029034923. Office phone: 4015191604.
What is Dr. Otis Warren's NPI?
Dr. Otis Warren's National Provider Identifier (NPI) is 1285898890, issued by NPPES.
Does Dr. Otis Warren accept Medicare assignment?
Yes. Dr. Otis Warren accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Otis Warren 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); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.