NPI Portal NPI Lookup & Verification

Dr. Mark Douglas Springston, PHD

Dr. Mark Douglas Springston is a Psychologist provider (Psychologist) practicing in Frederick, MD, registered in the NPPES registry with NPI 1013075266 since 2006. The credential PHD stands for Doctor of Philosophy.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1013075266
Entity type Individual (Type 1)
Name Dr. Mark Douglas Springston
Credential PHD
Sex Male
Practice address Frederick, MD, 21704
Phone 3017885351
Fax 3019658264
Enumeration date 2006-12-04
Last updated in NPPES 2025-05-22

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 3898 MD

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 Springston, PHD
NPI: 1013075266
Taxonomy: 103T00000X (Psychologist)
Address: Frederick, MD, 21704

Verify this record

Cross-check NPI 1013075266 against the authoritative CMS record: view Dr. Mark Douglas Springston 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

What specialty is Mark Springston?
Mark Springston is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-05-22.