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Oklahoma Ess Hospitalist LLC

Q: What is the NPI number for Oklahoma Ess Hospitalist LLC?

The NPI for Oklahoma Ess Hospitalist LLC is 1356740252, a Type 2 (organization) record in the CMS NPPES registry.

Hospitalist Physician in Frederick, OK · enumerated 2014 · authorized official Ron Weiss, Ceo.

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

National Provider Identifier

1356740252

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Registry record

Entity type Organization (Type 2)

Legal business name Oklahoma Ess Hospitalist LLC

Practice address 319 E Josephine Ave, Frederick, OK, 73542

Phone (580) 335-7565

Enumeration date Aug 15, 2014

Last updated in NPPES Aug 15, 2014

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Ron Weiss

Title Ceo

Phone (972) 934-3200

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 Oklahoma Ess Hospitalist LLC?

The NPI for Oklahoma Ess Hospitalist LLC is 1356740252, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Oklahoma Ess Hospitalist LLC?

NPPES lists Ron Weiss (Ceo) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-15.