Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Erx Hospitalist of California

Q: What type of organization is Erx Hospitalist of California?

Erx Hospitalist of California is registered in NPPES as a Emergency Medicine Physician (its primary provider taxonomy).

Emergency Medicine Physician in Mariposa, CA · enumerated 2025 · authorized official Edith Devrnja, Chief Nursing Officer.

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

National Provider Identifier

1316744634

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Registry record

Entity type Organization (Type 2)

Legal business name Erx Hospitalist of California

Practice address 5189 Hospital Rd, Mariposa, CA, 95338

Phone (209) 966-3631

Enumeration date Feb 25, 2025

Last updated in NPPES Feb 25, 2025

Taxonomy & classification

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Edith Devrnja

Title Chief Nursing Officer

Phone (865) 777-1300

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Erx Hospitalist of California?

Erx Hospitalist of California is registered in NPPES as a Emergency Medicine Physician (its primary provider taxonomy).

Providers at this address

Browse all →

Deron Warren Emergency Medicine Physician · Mariposa, CA NPI 1962491670 Robert Horvat Endocrinology, Diabetes & Metabolism Physician · Mariposa, CA NPI 1841279668 John C Fremont Healthcare District Critical Access Hospital · Mariposa, CA NPI 1184662652 Betty Massey Clinical Social Worker · Mariposa, CA NPI 1457384323 Joseph Rogers Emergency Medicine Physician · Mariposa, CA NPI 1033133202 Leena Gupta Internal Medicine Physician · Mariposa, CA NPI 1811901580 Renee Roper Marriage & Family Therapist · Mariposa, CA NPI 1427061829 Kenneth Smith Emergency Medical Services (Emergency Medicine) Physician · Mariposa, CA NPI 1285725937

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-25.