Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Peter David Byeff, MD

Hematology & Oncology Physician in Southington, CT · enumerated 2005.

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

National Provider Identifier

1710979463

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Registry record

Entity type Individual (Type 1)

Name Dr. Peter David Byeff

Credential MD

Sex Male

Practice address 55 Meriden Ave, Ste 1a, Southington, CT, 06489

Phone (860) 621-9316

Fax (860) 620-5526

Enumeration date Aug 18, 2005

Last updated in NPPES Feb 25, 2008

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 023371 (CT) 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
HAS005	Other	CT	OXFORD
001233717	Medicaid	CT	-
1037869	Other	-	CIGNA
010023371CT04	Other	CT	ANTHEM BC & BS
2V8231	Other	CT	HEALTHNET
057020	Other	CT	CONNECTICARE

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 NPI 1710979463 active?

Yes, as of the latest NPPES snapshot, NPI 1710979463 is active (record last updated 2008-02-25).

How do I verify Peter Byeff's NPI record?

Cross-check NPI 1710979463 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Brian Byrne Hematology & Oncology Physician · Southington, CT NPI 1508844010 William Mcqueen Internal Medicine Physician · Southington, CT NPI 1376594531 Cancer Center of Central Connecticut LLC Hematology & Oncology Physician · Southington, CT NPI 1588618185 Maureen Onyirimba Pediatrics Physician · Southington, CT NPI 1821042953 Lifespring Pediatrics LLC Pediatrics Physician · Southington, CT NPI 1033157722 Curtland Brown Pulmonary Disease Physician · Southington, CT NPI 1366594913 James Battipaglia Optician · Southington, CT NPI 1669699047 Joshua Rock Cardiovascular Disease Physician · Southington, CT NPI 1093914574

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-25.