Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. William Carl Konchar, MD
Family Medicine Physician in York, PA · enumerated 2006 · practices at Wellspan Medical Group.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1265450373
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 01059703 | Other | PA | CAPITAL BC-WMG WHEATLYN |
| 1142359 | Other | PA | AH MERCY-WMG EYFM |
| 01059701 | Other | PA | CAPITAL BC-WMG EYFM |
| P002797 | Other | PA | GATEWAY-WMG |
| 261038 | Other | PA | UNISON-WMG VGFM |
| 152193 | Other | PA | UNISON-WMG WHEATLYN |
| 000692462 | Medicaid | PA | - |
| 20016411 | Other | PA | AH MERCY-WMG WHEATLYN |
| 243586 | Other | PA | MAMSI-WMG |
| 30279 | Other | PA | JOHNS HOPKINS |
| 071443 | Other | PA | HIGHMARK BLUE SHIELD |
| 50083205 | Other | PA | CAPITAL BLUE CROSS-WMG VGFM |
| 5371268 | Other | PA | AETNA |
| 015 | Other | PA | GEISINGER |
| 543948 | Other | MD | CAREFIRST MD BCBS |
| 80958 | Other | PA | UNISON-WMG EYFM |
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.
Frequently asked questions
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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-22.