Physician Profile
Isaac A. Klein, M.D., PhD
Unclaimed ProfileAbout Dr. Klein
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Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (617) 732-5500
- Email not available
Practice Locations
75 FRANCIS ST
Boston, MA 02115
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 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
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 Isaac A. Klein, M.D. specialize in?
Isaac A. Klein, M.D. is an internist in Boston, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Isaac A. Klein, M.D. located?
Isaac A. Klein, M.D. is listed at 75 Francis St, Boston, MA 02115. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Isaac A. Klein, M.D.'s phone number?
The number on file is (617) 732-5500. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Isaac A. Klein, M.D.?
Isaac A. Klein, M.D.'s National Provider Identifier is 1780022269. 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 much experience does Isaac A. Klein, M.D. have?
Isaac A. Klein, M.D. has 13+ years experience. Registered with an NPI since 2013. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Isaac A. Klein, M.D.'s profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Isaac A. Klein, M.D.. 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.