Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ruth E Oren, M.D.

Q: What is the NPI number for Ruth Oren?

The National Provider Identifier (NPI) for Ruth Oren is 1821123696, a Type 1 (individual) record in the CMS NPPES registry.

Anesthesiology Physician in Lancaster, CA · enumerated 2007.

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

National Provider Identifier

1821123696

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Registry record

Entity type Individual (Type 1)

Name Dr. Ruth E Oren

Credential M.D.

Sex Female

Practice address 44900 60th St W, Lancaster, CA, 93536

Phone (661) 948-8581

Fax (661) 945-8474

Enumeration date Feb 22, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License A042650 (CA) 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

What is the NPI number for Ruth Oren?

The National Provider Identifier (NPI) for Ruth Oren is 1821123696, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ruth Oren practice?

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

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.