Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Floyd Clayton Byfield, M.D

Gastroenterology Physician in Sleepy Hollow, NY · enumerated 2006.

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

National Provider Identifier

1780787291

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Registry record

Entity type Individual (Type 1)

Name Dr. Floyd Clayton Byfield

Credential M.D

Sex Male

Practice address Westchester Gastroentrology Assoc., PC, 777 North Broadway, Suite # 305, Sleepy Hollow, NY, 10591

Phone (914) 366-6120

Fax (914) 366-4128

Enumeration date Sep 7, 2006

Last updated in NPPES Jun 27, 2013

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 200515 (NY) 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
016823018	Medicaid	NY	-
133496674	Other	NY	TAX ID

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

Where does Floyd Byfield practice?

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

What is the NPI number for Floyd Byfield?

The National Provider Identifier (NPI) for Floyd Byfield is 1780787291, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-27.