Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory R Seiler, MD

Family Medicine Physician in South Easton, MA · enumerated 2005 · practices at Eye Health Services,Inc..

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

National Provider Identifier

1306827274

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Registry record

Entity type Individual (Type 1)

Name Gregory R Seiler

Credential MD

Sex Male

Practice address 21 Bristol Dr, Suite 101, South Easton, MA, 02375

Phone (508) 565-7300

Fax (508) 565-7305

Enumeration date Nov 8, 2005

Last updated in NPPES Mar 27, 2014

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 152640 (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
3164730	Medicaid	MA	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Gregory Seiler's NPI record?

Cross-check NPI 1306827274 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1306827274 active?

Yes, as of the latest NPPES snapshot, NPI 1306827274 is active (record last updated 2014-03-27).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-27.