NPI Portal NPI Lookup & Verification

Thomas M Ronan, MD

Thomas M Ronan is a General Practice Physician provider (General Practice) practicing in Phoenix, AZ, registered in the NPPES registry with NPI 1891880829 since 2006. The credential MD stands for Doctor of Medicine.

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NPI 1891880829
Entity type Individual (Type 1)
Name Thomas M Ronan
Credential MD
Sex Male
Practice address 4730 E INDIAN SCHOOL RD STE 211, Phoenix, AZ, 85018
Phone 6023543491
Fax 6025953567
Enumeration date 2006-10-04
Last updated in NPPES 2017-04-15

Taxonomy & licenses

Taxonomy code Specialty Primary License State
2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician Secondary 25457 AZ
208D00000X General Practice Physician Primary 25457 AZ

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details
Provider: Thomas Ronan, MD
NPI: 1891880829
Taxonomy: 208D00000X (General Practice Physician)
Address: 4730 E INDIAN SCHOOL RD STE 211, Phoenix, AZ, 85018

Verify this record

Cross-check NPI 1891880829 against the authoritative CMS record: view Thomas M Ronan on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is NPI 1891880829 active?
Yes — as of the latest NPPES snapshot, NPI 1891880829 is active (record last updated 2017-04-15).
How do I verify Thomas Ronan's NPI record?
Cross-check NPI 1891880829 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2017-04-15.