Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gary Elliot Tratt, MD

Internal Medicine Physician in Hyannis, MA · enumerated 2006 · practices at Gary E Tratt MD PC.

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

National Provider Identifier

1891874947

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Registry record

Entity type Individual (Type 1)

Name Dr. Gary Elliot Tratt

Credential MD

Sex Male

Practice address 66 School St, Hyannis, MA, 02601

Phone (508) 771-5300

Fax (508) 775-3362

Enumeration date Nov 2, 2006

Last updated in NPPES Sep 22, 2011

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 30714 (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
60132	Other	MA	HARVARD PILGRIM
5388221	Other	-	CIGNA
TRM07258	Other	MA	BLUE SHIELD
11666	Other	-	JOHN HANCOCK COMMONWEALTH
2008939	Medicaid	MA	-
111088962	Other	-	RAILROAD RETIREMENT
0400747	Other	-	UNITED HEALTHCARE
0482448	Other	-	US HEALTHCARE
726169	Other	-	TUFTS

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Gary Tratt?

Gary Tratt is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Gary E Tratt MD PC Internal Medicine Physician · Hyannis, MA NPI 1417018409

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-22.