Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James Simmons, D.O.

Hospitalist Physician in Fresno, CA · enumerated 2011.

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

National Provider Identifier

1043519853

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Registry record

Entity type Individual (Type 1)

Name Dr. James Simmons

Credential D.O.

Sex Male

Practice address 155 N Fresno St, Fresno, CA, 93701

Phone (559) 499-6500

Enumeration date Mar 18, 2011

Last updated in NPPES Nov 1, 2018

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 20A12478 (CA) Secondary

207RH0002X Hospice and Palliative Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 20A12478 (CA) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 20A12478 (CA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

Is NPI 1043519853 active?

Yes, as of the latest NPPES snapshot, NPI 1043519853 is active (record last updated 2018-11-01).

How do I verify James Simmons's NPI record?

Cross-check NPI 1043519853 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Michael Cawdery Emergency Medicine Physician · Fresno, CA NPI 1295735538 Ogochukwu Molokwu Internal Medicine Physician · Fresno, CA NPI 1952398000 Hoyle Leigh Psychiatry Physician · Fresno, CA NPI 1750490678 Mitra Bennett Pharmacist · Fresno, CA NPI 1972692218 Regents of University of California Internal Medicine Physician · Fresno, CA NPI 1659419638 Mohammad Nezami Specialist · Fresno, CA NPI 1043342660 Jeanette Rylander Internal Medicine Physician · Fresno, CA NPI 1780802785 Ai Pham Internal Medicine Physician · Fresno, CA NPI 1164616736

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-01.