Physician Profile
Martin M. Mass, M.D.
Unclaimed ProfileAbout Dr. Mass
Martin M. Mass, M.D. practices internal medicine in San Francisco, CA. Martin is also listed as specializing in infectious disease.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (415) 593-1136
- Email not available
Practice Locations
580 VALENCIA ST
San Francisco, CA 94110
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 8 related providers in 1 group
Common questions
What does Dr. Mass specialize in?
Dr. Mass is an internist in San Francisco, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Internal Medicine”.
NPI registry
Where is Dr. Mass located?
Dr. Mass is listed at 580 VALENCIA ST, San Francisco, CA 94110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Mass's phone number?
The number on file is (415) 593-1136. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Mass's NPI number?
Dr. Mass's National Provider Identifier is 1922013382. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Dr. Mass been practicing?
Dr. Mass has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Mass confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mass. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.