NPI Portal NPI Lookup & Verification

Mark L Clark, PHD

Mark L Clark is a Psychologist provider (Psychologist) practicing in Conway, AR, registered in the NPPES registry with NPI 1306921853 since 2006. The credential PHD stands for Doctor of Philosophy. Practices at Conway Regional Medical Center, Inc. (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI 1306921853
Entity type Individual (Type 1)
Name Mark L Clark
Credential PHD
Sex Male
Practice address 2200 ADA AVE STE 302, Conway, AR, 72034
Phone 5019320352
Fax 5019320354
Enumeration date 2006-10-25
Last updated in NPPES 2023-05-10

Taxonomy & licenses

Taxonomy code Specialty Primary License State
103T00000X Psychologist Primary 89-13P AR

PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Copy-ready billing details
Provider: Mark Clark, PHD
NPI: 1306921853
Taxonomy: 103T00000X (Psychologist)
Address: 2200 ADA AVE STE 302, Conway, AR, 72034

Other providers at this practice address

NPI Name Type Specialty Location
1174520258 Timothy Freyaldenhoven Individual Neurology Physician Conway, AR
1053318147 Keith Schluterman Individual Neurology Physician Conway, AR
1205826187 Dallas Bondhus Individual Medical Physician Assistant Conway, AR
1831589720 Elana Russell Individual Family Nurse Practitioner Conway, AR
1255879656 Conway Regional Medical Center, Inc. Organization Neurology Physician Conway, AR

Verify this record

Cross-check NPI 1306921853 against the authoritative CMS record: view Mark L Clark on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is NPI 1306921853 active?
Yes — as of the latest NPPES snapshot, NPI 1306921853 is active (record last updated 2023-05-10).
How do I verify Mark Clark's NPI record?
Cross-check NPI 1306921853 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-05-10.