NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Peter Carl Ree, M.D.

Radiation Oncology Physician in Harlingen, TX · enumerated 2006.

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

National Provider Identifier

1871663401

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Registry record

Entity type Individual (Type 1)
Name Dr. Peter Carl Ree
Credential M.D.
Sex Male
Practice address 2121 Pease St Ste 101, Harlingen, TX, 78550
Fax (956) 364-6734
Enumeration date Nov 9, 2006
Last updated in NPPES Jun 2, 2026

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 29878 (WV) Secondary
2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License G29884 (CA) Secondary
2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License F2418 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Peter Ree?
Peter Ree is registered in NPPES with the primary taxonomy of Radiation Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-02.