Dr. Mark C Purcell, PSY.D.
Dr. Mark C Purcell is a Psychologist provider (Psychologist) practicing in Pacifica, CA, registered in the NPPES registry with NPI 1255536769 since 2007. The credential PSYD stands for Doctor of Psychology.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1255536769 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Mark C Purcell |
| Credential | PSY.D. |
| Sex | Male |
| Practice address | Pacifica, CA, 94044 |
| Phone | 4155717189 |
| Enumeration date | 2007-06-15 |
| Last updated in NPPES | 2007-07-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103T00000X | Psychologist | Primary | — | — |
PSYD — Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential
Copy-ready billing details
Provider: Mark Purcell, PSY.D. NPI: 1255536769 Taxonomy: 103T00000X (Psychologist) Address: Pacifica, CA, 94044
Verify this record
Cross-check NPI 1255536769 against the authoritative CMS record: view Dr. Mark C Purcell 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 1255536769 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.