Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David S Greenstein, M.D.

Dermatology Physician in Beverly, MA · enumerated 2006.

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

National Provider Identifier

1205931789

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Registry record

Entity type Individual (Type 1)

Name Dr. David S Greenstein

Credential M.D.

Sex Male

Practice address 138 Conant St, 1st Fl, Beverly, MA, 01915

Phone (978) 927-5254

Fax (978) 927-5174

Enumeration date Sep 13, 2006

Last updated in NPPES Oct 18, 2017

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 81143 (MA) 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
0108481Y0NH01	Other	NH	ANTHEM NEW HAMPSHIRE
400020	Other	MA	HARVARD
514226	Other	MA	AETNA
070007725	Other	MA	RAILROAD MEDICARE
081143	Other	MA	TUFTS
J31553	Other	MA	BCBS MASSACHUSETTS
P00395117	Other	NH	RAILROAD MEDICARE

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 David Greenstein practice?

The practice location on file with NPPES is in Beverly, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for David Greenstein?

The National Provider Identifier (NPI) for David Greenstein is 1205931789, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Robb Marchione Dermatology Physician · Beverly, MA NPI 1477741031 Nicole Branum Physician Assistant · Beverly, MA NPI 1700208345 Northeast Dermatology Associates, PC Dermatology Physician · Beverly, MA NPI 1699180620 Northeast Dermatology Associates, PC Dermatology Physician · Beverly, MA NPI 1407258494 Nedab LLC Dermatology Physician · Beverly, MA NPI 1861864100 Rachel Herwerth Physician Assistant · Beverly, MA NPI 1164311437

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-10-18.