Advanced Multi Specialty Medical Group
NPI 1538281621 · General Practice Physician · Hayward, CA
Advanced Multi Specialty Medical Group is a General Practice Physician organization in Hayward, CA (NPI 1538281621).
Provider details
- NPI number
- 1538281621
- Entity type
- Organization
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Thomas Vamvouris, Partner(510) 276-4845
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Chiropractor111N00000X
Chiropractic Providers
- Acupuncturist171100000X
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Mailing address
Other names (DBA / former)
- Doing business as
- As Soon As Possible Medical Center Inc.
Registry dates
- Enumerated
- 2007-04-06
- Last updated
- 2008-06-26
Frequently asked questions
- What is Advanced Multi Specialty Medical Group's NPI number?
- Advanced Multi Specialty Medical Group's National Provider Identifier (NPI) is 1538281621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Advanced Multi Specialty Medical Group?
- Advanced Multi Specialty Medical Group is classified in the NPPES registry as General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Advanced Multi Specialty Medical Group located?
- Advanced Multi Specialty Medical Group's practice location on file with NPPES is 100 W Jackson St, Hayward, CA 94544-1810.
- What is Advanced Multi Specialty Medical Group's phone number?
- The practice phone number listed in the NPPES registry for Advanced Multi Specialty Medical Group is (510) 786-3300.
- Who is the authorized official for Advanced Multi Specialty Medical Group?
- The authorized official listed on Advanced Multi Specialty Medical Group's NPPES record is Thomas Vamvouris, Partner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Advanced Multi Specialty Medical Group's NPI active?
- Yes — Advanced Multi Specialty Medical Group's NPI (1538281621) is active in the NPPES registry as of the last update on 2008-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.