Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Oscar Cortez Oandasan, M.D.

Family Medicine Physician in Lake Jackson, TX · enumerated 2006.

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

National Provider Identifier

1467427609

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Registry record

Entity type Individual (Type 1)

Name Dr. Oscar Cortez Oandasan

Credential M.D.

Sex Male

Practice address 201 Oak Dr S, Suite 102, Lake Jackson, TX, 77566

Phone (979) 297-9752

Fax (979) 299-6717

Enumeration date Feb 21, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License F3570 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Oscar Oandasan practice?

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

What is the NPI number for Oscar Oandasan?

The National Provider Identifier (NPI) for Oscar Oandasan is 1467427609, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.