Dr. Mark Allen Liston, PHD, LPC
Dr. Mark Allen Liston is a Professional Counselor provider (Counselor) practicing in Joplin, MO, registered in the NPPES registry with NPI 1326035247 since 2005. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1326035247 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Mark Allen Liston |
| Credential | PHD, LPC |
| Sex | Male |
| Practice address | Joplin, MO, 64804 |
| Phone | 4177821290 |
| Fax | 4177821290 |
| Enumeration date | 2005-10-05 |
| Last updated in NPPES | 2025-03-19 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 101YP2500X | Professional Counselor | Secondary | 000815 | MO |
| 101YP2500X | Professional Counselor | Primary | CS000815 | MO |
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 Liston, PHD, LPC NPI: 1326035247 Taxonomy: 101YP2500X (Professional Counselor) Address: Joplin, MO, 64804
Verify this record
Cross-check NPI 1326035247 against the authoritative CMS record: view Dr. Mark Allen Liston 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
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-03-19.