Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum
Jefferson University Physicians
Medical Oncology Physician in Philadelphia, PA · enumerated 2008 · authorized official Hristos Ristas, Vp of Provider Network Operations.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1346414588
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Registry record
Taxonomy & classification
Authorized official
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0466144 | Other | PA | AETNA |
| 435778 | Other | PA | HIGHMARK BLUE SHIELD |
| 1051598 | Other | PA | KEYSTONE MERCY |
| 7616708 | Medicaid | NJ | - |
| 0358994000 | Other | PA | INDEPENDENCE BLUE CROSS |
| 1004298 | Other | PA | KEYSTONE MERCY |
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
What is the NPI number for Jefferson University Physicians?
Who is the authorized official for Jefferson University Physicians?
Providers at this address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-13.