NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Clark, PHARM D

Pharmacotherapy Pharmacist in Marietta, OH · enumerated 2015.

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

National Provider Identifier

1588029078

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Michael Clark
Credential PHARM D
Sex Male
Practice address 401 Matthew St, Marietta, OH, 45750
Enumeration date Dec 28, 2015
Last updated in NPPES Dec 28, 2015

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 03225234 (OH) Secondary
1835P1200X Pharmacotherapy Pharmacist Pharmacy Service Providers · License 03225234 (OH) Primary
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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 Clark?
The National Provider Identifier (NPI) for Michael Clark is 1588029078, a Type 1 (individual) record in the CMS NPPES registry.
Where does Michael Clark practice?
The practice location on file with NPPES is in Marietta, 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 2015-12-28.