Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Hospitalist Medicine Physicians of California - Oxnard, PC

Internal Medicine Physician in Brentwood, TN · enumerated 2019 · authorized official Robert Bessler, President.

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

National Provider Identifier

1386280410

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Registry record

Entity type Organization (Type 2)

Legal business name Hospitalist Medicine Physicians of California - Oxnard, PC

Practice address 5410 Maryland Way Ste 300, Brentwood, TN, 37027

Phone (615) 377-5658

Enumeration date Nov 25, 2019

Last updated in NPPES Nov 25, 2019

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Robert Bessler

Title President

Phone (615) 377-5658

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 is Hospitalist Medicine Physicians of California - Oxnard, PC located?

The practice location on file with NPPES is in Brentwood, TN.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2019-11-25. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-11-25.