Amast Medical Associates, PC
NPI 1184519241 · Psychiatry Physician · San Francisco, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amast Medical Associates, PC is a Psychiatry Physician organization in San Francisco, CA (NPI 1184519241).
Provider details
- NPI number
- 1184519241
- Entity type
- Organization
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jack Buchanan, Co-Owner & Physician(415) 745-2855
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
1 yr 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
Mailing address
Other names (DBA / former)
- Doing business as
- Amast Medical Associates
Registry dates
- Enumerated
- 2025-06-10
- Last updated
- 2025-12-06
- Certified
- 2025-12-06
Frequently asked questions
- What is Amast Medical Associates, PC's NPI number?
- Amast Medical Associates, PC's National Provider Identifier (NPI) is 1184519241, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Amast Medical Associates, PC?
- Amast Medical Associates, PC is classified in the NPPES registry as Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Amast Medical Associates, PC located?
- Amast Medical Associates, PC's practice location on file with NPPES is 166 Geary St, San Francisco, CA 94108-5628.
- What is Amast Medical Associates, PC's phone number?
- The practice phone number listed in the NPPES registry for Amast Medical Associates, PC is (415) 745-2855.
- Does Amast Medical Associates, PC accept Medicare?
- Amast Medical Associates, PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Amast Medical Associates, PC?
- The authorized official listed on Amast Medical Associates, PC's NPPES record is Jack Buchanan, Co-Owner & Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Amast Medical Associates, PC's NPI active?
- Yes — Amast Medical Associates, PC's NPI (1184519241) is active in the NPPES registry as of the last update on 2025-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.