NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Arthur J Ronan, D.O.

Family Medicine Physician in Okemos, MI · enumerated 2006.

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

National Provider Identifier

1346283074

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Arthur J Ronan
Credential D.O.
Sex Male
Practice address 1881 W Grand River Ave, Okemos, MI, 48864
Fax (517) 999-2039
Enumeration date Jun 13, 2006
Last updated in NPPES Jul 15, 2024

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 5101013666 (MI) 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

Other identifiers

Identifier Type State Issuer
1003752 Other MI MCLAREN HEALTH PLAN-MEDICAID
200000002629 Other MI PHP FAMILYCARE
1003752 Other MI MCLAREN HEALTH ADVANTAGE
1003752 Other MI MCLAREN HEALTH PLAN-COMMERCIAL
4383330 Medicaid MI -
080182662 Other MI RAILROAD MEDICARE
0853303075 Other MI BCBS/BCN
0M21440023 Other MI MEDICARE ADVANTAGE
200000002629 Other MI PHP
7874526 Other MI AETNA

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 specialty is Arthur Ronan?
Arthur Ronan is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-15.