NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Charles Lewis Geiger, D.O.

Family Medicine Physician in Newark, OH · enumerated 2005.

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

National Provider Identifier

1235115270

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Charles Lewis Geiger
Credential D.O.
Sex Male
Practice address 1970 Tamarack Rd, Newark, OH, 43055
Phone (220) 564-1770
Fax (220) 564-1771
Enumeration date Dec 21, 2005
Last updated in NPPES Mar 18, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 1932 (WV) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 34007833G (OH) 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
2324916 Medicaid OH -

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 Charles Geiger?
The National Provider Identifier (NPI) for Charles Geiger is 1235115270, a Type 1 (individual) record in the CMS NPPES registry.
Where does Charles Geiger practice?
The practice location on file with NPPES is in Newark, OH. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-18.