Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David J Byler, MD

Q: What is the NPI number for David Byler?

The National Provider Identifier (NPI) for David Byler is 1710935648, a Type 1 (individual) record in the CMS NPPES registry.

Family Medicine Physician in Lancaster, PA · enumerated 2006.

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

National Provider Identifier

1710935648

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Registry record

Entity type Individual (Type 1)

Name David J Byler

Credential MD

Sex Male

Practice address 540 N Duke St, Lancaster, PA, 17602

Phone (717) 544-6111

Enumeration date May 4, 2006

Last updated in NPPES Feb 1, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 14641 (WV) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD031540E (PA) 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
000577973	Other	-	BLUE CROSS/BLUE SHIELD
0680517	Medicaid	OH	-
0057519000	Medicaid	WV	-
080094479	Other	-	RAILROAD MEDICARE

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

What is the NPI number for David Byler?

The National Provider Identifier (NPI) for David Byler is 1710935648, a Type 1 (individual) record in the CMS NPPES registry.

Where does David Byler practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-01.