NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christopher M Ruthruff, M.D.

Family Medicine Physician in Ionia, MI · enumerated 2006.

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

National Provider Identifier

1831144179

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Christopher M Ruthruff
Credential M.D.
Sex Male
Practice address 550 E Washington St, Ste 205, Ionia, MI, 48846
Phone (616) 527-8293
Fax (616) 527-5718
Enumeration date May 24, 2006
Last updated in NPPES Jan 19, 2010

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License CR070864 (MI) 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
1016882 Other MI MCLAREN
700C460070 Other - BCBS GROUP NUMBER
104425019 Medicaid MI -
383218134 Other MI TRICARE
4425019 Other MI MOLINA
01349 Other MI PRIORITY HEALTH PAY TO #
200000002259 Other MI PHPMM
135697200 Other MI US DEPARTMENT OF LABOR

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 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.
What specialty is Christopher Ruthruff?
Christopher Ruthruff 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-19.