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Harrison Alter, MD
NPI 1972584415 · Emergency Medicine Physician · Oakland, CA
Harrison Alter, MD is a Emergency Medicine Physician provider in Oakland, CA (NPI 1972584415).
Provider details
- NPI number
- 1972584415
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G80744 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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.
Practice location
1404 Franklin St Ste 200
Oakland, CA 94612-3208
Phone: (510) 891-8950
Fax: (510) 832-2104
Street-level locationGet directions
Mailing address
1511 Grant St
Berkeley, CA 94703-1133
Registry dates
- Enumerated
- 2005-11-10
- Last updated
- 2025-06-09
- Certified
- 2025-06-09
Frequently asked questions
- What is Harrison Alter's NPI number?
- Harrison Alter's National Provider Identifier (NPI) is 1972584415, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harrison Alter's specialty?
- Harrison Alter is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Harrison Alter located?
- Harrison Alter's practice location on file with NPPES is 1404 Franklin St Ste 200, Oakland, CA 94612-3208.
- What is Harrison Alter's phone number?
- The practice phone number listed in the NPPES registry for Harrison Alter is (510) 891-8950.
- Is Harrison Alter's NPI active?
- Yes — Harrison Alter's NPI (1972584415) is active in the NPPES registry as of the last update on 2025-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.