Advanced Multi Specialty Medical Group
Advanced Multi Specialty Medical Group is a healthcare organization registered as General Practice Physician in Hayward, CA, holding Type 2 (organization) NPI 1538281621 since 2007. The authorized official on file is Thomas Vamvouris, Partner.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1538281621 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Advanced Multi Specialty Medical Group |
| Other name | <Unavail> |
| Practice address | 100 W JACKSON ST, Hayward, CA, 94544 |
| Phone | 5107863300 |
| Fax | 5107860280 |
| Enumeration date | 2007-04-06 |
| Last updated in NPPES | 2008-06-26 |
Authorized official
| Name | Thomas Vamvouris |
|---|---|
| Title | Partner |
| Phone | 5102764845 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Secondary | — | — |
| 171100000X | Acupuncturist | Secondary | — | — |
| 208D00000X | General Practice Physician | Primary | — | — |
Copy-ready billing details
Provider: Advanced Multi Specialty Medical Group NPI: 1538281621 Taxonomy: 208D00000X (General Practice Physician) Address: 100 W JACKSON ST, Hayward, CA, 94544
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1538391594 | Northern California Injury Centers Inc. | Organization | Family Medicine Physician | Hayward, CA |
Verify this record
Cross-check NPI 1538281621 against the authoritative CMS record: view Advanced Multi Specialty Medical Group on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
Who is the authorized official for Advanced Multi Specialty Medical Group?
What is the NPI number for Advanced Multi Specialty Medical Group?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-06-26.