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Dr. Mark Phillips Altman, M.D.

Orthopaedic Surgery Physician in Hamden, CT · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1689652711

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark Phillips Altman
Credential M.D.
Sex Male
Practice address 2200 Whitney Ave Ste 170, Hamden, CT, 06518
Phone (203) 408-2700
Fax (203) 884-8201
Enumeration date Jan 9, 2006
Last updated in NPPES Oct 8, 2020

Taxonomy & licenses

207XS0106X Orthopaedic Hand Surgery Physician Allopathic & Osteopathic Physicians · License 38149 (CT) Secondary
207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 038149 (CT) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
1689652711 Medicaid CT -

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.

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Frequently asked questions

Where does Mark Altman practice?
The practice location on file with NPPES is in Hamden, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Altman?
The National Provider Identifier (NPI) for Mark Altman is 1689652711, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-08.