NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Frank G Rieger, MD

Ophthalmology Physician in Columbia, MO · enumerated 2006.

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

National Provider Identifier

1275581555

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Frank G Rieger
Credential MD
Sex Male
Practice address One Hospital Dr, Columbia, MO, 65212
Phone (573) 882-1506
Fax (573) 884-5575
Enumeration date May 5, 2006
Last updated in NPPES Apr 25, 2012

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD104278 (MO) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
206703209 Medicaid MO -
180017351 Other MO RR MEDICARE
P00415748 Other MO RAILROAD MEDICARE

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

Where does Frank Rieger practice?
The practice location on file with NPPES is in Columbia, MO. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Frank Rieger?
The National Provider Identifier (NPI) for Frank Rieger is 1275581555, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-25.