NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Ronald Dean Sager, M.D.

Psychiatry Physician in Calabasas, CA · enumerated 2006.

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

National Provider Identifier

1346324183

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Registry record

Entity type Individual (Type 1)
Name Mr. Ronald Dean Sager
Credential M.D.
Sex Male
Practice address Calabasas, CA, 91302
Phone (818) 783-3835
Fax (818) 880-0808
Enumeration date Oct 25, 2006
Last updated in NPPES Aug 22, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License C25663 (CA) Secondary
2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License C25663 (CA) Secondary
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License C25663 (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.

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Frequently asked questions

Where does Ronald Sager practice?
The practice location on file with NPPES is in Calabasas, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ronald Sager?
The National Provider Identifier (NPI) for Ronald Sager is 1346324183, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-22.