Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael J O'Connor, MD

Surgery Physician in Ronan, MT · enumerated 2006.

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

National Provider Identifier

1952367450

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Michael J O'Connor

Credential MD

Sex Male

Practice address 126 6th Ave Sw, Ronan, MT, 59864

Phone (406) 676-3600

Fax (406) 676-3738

Enumeration date Apr 24, 2006

Last updated in NPPES Nov 24, 2010

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 12543 (MT) Primary

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

What is the NPI number for Michael O'Connor?

The National Provider Identifier (NPI) for Michael O'Connor is 1952367450, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael O'Connor practice?

The practice location on file with NPPES is in Ronan, MT. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Michael Dolecki Orthopaedic Surgery Physician · Ronan, MT NPI 1033186655 Sharla Hart Family Medicine Physician · Ronan, MT NPI 1043326739 Robert Alfiero Physician Assistant · Ronan, MT NPI 1417029059 Eleanore Hobbs Psychiatry Physician · Ronan, MT NPI 1740341189 St. Lukes Community Hospital Rural Health Clinic/Center · Ronan, MT NPI 1093876344 Hikmat Maaliki Family Medicine Physician · Ronan, MT NPI 1295897650 William Cullis Family Medicine Physician · Ronan, MT NPI 1174685374 Edred Vizcarra Family Medicine Physician · Ronan, MT NPI 1043373111

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-24.