Oliver Berrett, M.D.
NPI 1790066645 · Emergency Medicine Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Oliver Berrett, M.D. is a Emergency Medicine Physician provider in Baltimore, MD (NPI 1790066645).
Provider details
- NPI number
- 1790066645
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 262756 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,723 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 803 | $172 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 278 | $130 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 195 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 110 | $92 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 64 | $167 |
| Urinalysis, Manual Test81002 | 54 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefuroxime Axetilbrand: Cefuroxime | 100 | 98 |
| Prednisone | 97 | 94 |
| Azithromycin | 73 | 72 |
| Cephalexin | 54 | 53 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 38 | 38 |
| Ondansetron Hcl | 27 | 27 |
| Doxycycline Hyclate | 25 | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-09-06
- Last updated
- 2013-02-28
Frequently asked questions
- What is Oliver Berrett's NPI number?
- Oliver Berrett's National Provider Identifier (NPI) is 1790066645, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Oliver Berrett's specialty?
- Oliver Berrett is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Oliver Berrett located?
- Oliver Berrett's practice location on file with NPPES is 600 N Wolfe St, Baltimore, MD 21287-0005.
- What is Oliver Berrett's phone number?
- The practice phone number listed in the NPPES registry for Oliver Berrett is (410) 955-2280.
- Does Oliver Berrett accept Medicare?
- Oliver Berrett is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Oliver Berrett's NPI active?
- Yes — Oliver Berrett's NPI (1790066645) is active in the NPPES registry as of the last update on 2013-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.