NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark C Farmer, RPH

Geriatric Pharmacist in Davenport, IA · enumerated 2011 · practices at Oconnor Medical Supply Inc.

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

National Provider Identifier

1942588744

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mark C Farmer
Credential RPH
Sex Male
Practice address 2660 E 53rd St, Davenport, IA, 52807
Phone (800) 211-1073
Enumeration date Jul 27, 2011
Last updated in NPPES Jul 27, 2011

Taxonomy & licenses

1835G0303X Geriatric Pharmacist Pharmacy Service Providers · License 14376 (IA) Primary
1835G0303X Geriatric Pharmacist Pharmacy Service Providers · License 051030327 (IL) Secondary
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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 Mark Farmer?
The National Provider Identifier (NPI) for Mark Farmer is 1942588744, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Farmer practice?
The practice location on file with NPPES is in Davenport, IA. 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 2011-07-27.