Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum
Todd Shenkenberg MD PA
Hematology & Oncology Physician in Harlingen, TX · enumerated 2006 · authorized official Jan Shenkenberg, Practice Administrator.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1699875252
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Registry record
Taxonomy & classification
Authorized official
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2606102 | Other | TX | UNITED HEALTHCARE |
| 436503 | Other | TX | AETNA |
| 156656401 | Medicaid | TX | - |
| 129757100 | Other | TX | VALLEY HEALTH PLAN |
| 2640596 | Other | TX | CIGNA |
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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Providers at this address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-08.