Brian Apter, M.D.
NPI 1134418171 · Hospitalist Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Apter, M.D. is a Hospitalist Physician provider in Pasadena, CA (NPI 1134418171).
Provider details
- NPI number
- 1134418171
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A130773 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 46 | 38 |
| Hydralazine Hcl | 36 | 30 |
| Metoprolol Tartrate | 21 | — |
| Atorvastatin Calcium | 20 | 11 |
| Amlodipine Besylate | 20 | 14 |
| Potassium Chloride | 19 | 14 |
| Bisoprolol Fumarate | 16 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-03-30
- Last updated
- 2021-11-30
Frequently asked questions
- What is Brian Apter's NPI number?
- Brian Apter's National Provider Identifier (NPI) is 1134418171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Apter's specialty?
- Brian Apter is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Apter located?
- Brian Apter's practice location on file with NPPES is 393 E Walnut St, Pasadena, CA 91188-0001.
- What is Brian Apter's phone number?
- The practice phone number listed in the NPPES registry for Brian Apter is (415) 310-1938.
- Does Brian Apter accept Medicare?
- Brian Apter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Apter's NPI active?
- Yes — Brian Apter's NPI (1134418171) is active in the NPPES registry as of the last update on 2021-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.