Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. David M Gruber, MD

Dermatology Physician in Andover, MA · enumerated 2006.

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

National Provider Identifier

1649299256

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Registry record

Entity type Individual (Type 1)

Name Mr. David M Gruber

Credential MD

Sex Male

Practice address 138 Haverhill St, Suite 200, Andover, MA, 01810

Phone (978) 475-4322

Fax (978) 474-4537

Enumeration date Jul 18, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 207782 (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
401223	Other	MA	HARVARD
207782	Other	MA	TUFTS
J24588	Other	MA	BLUE CROSS/BLUE SHIELD
55400	Other	MA	FALLON
0300329	Other	MA	UNITED HEALTHCARE
2747691	Other	MA	AETNA

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

How do I verify David Gruber's NPI record?

Cross-check NPI 1649299256 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1649299256 active?

Yes, as of the latest NPPES snapshot, NPI 1649299256 is active (record last updated 2007-07-08).

Other providers at this practice address

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Mark Abelson Ophthalmology Physician · Andover, MA NPI 1811990682 Gail Torkildsen Ophthalmology Physician · Andover, MA NPI 1245215805 Paul Lemaitre Internal Medicine Physician · Andover, MA NPI 1255370250 Christine Andersen Dermatology Physician · Andover, MA NPI 1093734691 Andover Eye Associates, Inc Ophthalmology Physician · Andover, MA NPI 1588678551 Andover Surgery Center, Lp Ambulatory Surgical Clinic/Center · Andover, MA NPI 1669577227 Michael Terlizzi Dermatology Physician · Andover, MA NPI 1760583777 Phyllis N Spieler MD Rheumatology Physician · Andover, MA NPI 1275604159

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.