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Mark S. Amster MD

Dermatology Physician in Mashpee, MA · enumerated 2011 · authorized official Mark Amster, Physician.

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

National Provider Identifier

1083912018

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Registry record

Entity type Organization (Type 2)
Legal business name Mark S. Amster MD
Practice address 800 Falmouth Rd Ste 101b, Mashpee, MA, 02649
Phone (617) 762-7100
Fax (617) 783-7104
Enumeration date Feb 28, 2011
Last updated in NPPES Dec 4, 2025

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 70448 (MA) Primary

Authorized official

Name Mark Amster
Title Physician
Phone (617) 721-6552

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

What is the NPI number for Mark S. Amster MD?
The NPI for Mark S. Amster MD is 1083912018, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Mark S. Amster MD?
NPPES lists Mark Amster (Physician) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-04.