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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Mark D Epstein, M.D.

Surgery of the Hand (Plastic Surgery) Physician in Hauppauge, NY · enumerated 2006 · practices at Mark D Epstein M D P C.

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

National Provider Identifier

1255393567

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark D Epstein
Credential M.D.
Sex Male
Practice address Hauppauge, NY, 11788
Phone (631) 689-1902
Fax (631) 689-1153
Enumeration date Apr 3, 2006
Last updated in NPPES Jan 14, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2082S0105X Surgery of the Hand (Plastic Surgery) Physician Allopathic & Osteopathic Physicians · License 195372 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Epstein practice?
The practice location on file with NPPES is in Hauppauge, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Epstein?
The National Provider Identifier (NPI) for Mark Epstein is 1255393567, 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 2021-01-14.