Dr. Thomas E. Sullivan, PH.D.
Dr. Thomas E. Sullivan is a Psychologist provider (Psychologist) practicing in Fairfield, OH, registered in the NPPES registry with NPI 1316912421 since 2006. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1316912421 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Thomas E. Sullivan |
| Credential | PH.D. |
| Sex | Male |
| Practice address | 2810 MACK RD, Fairfield, OH, 45014 |
| Phone | 5138744530 |
| Fax | 5133463811 |
| Enumeration date | 2006-02-22 |
| Last updated in NPPES | 2025-09-11 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103G00000X | Clinical Neuropsychologist | Secondary | 5083 | OH |
| 103T00000X | Psychologist | Primary | 5083 | OH |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 257968 | Other | OH | VALUE OPTIONS PROVIDER ID |
| 000000066833 | Other | OH | ANTHEM ID# |
| A294802 | Other | OH | VALUE OPTIONS VIN |
Copy-ready billing details
Provider: Thomas Sullivan, PH.D. NPI: 1316912421 Taxonomy: 103T00000X (Psychologist) Address: 2810 MACK RD, Fairfield, OH, 45014
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1801861372 | Joeanne Gutzwiller | Individual | Psychologist | Fairfield, OH |
| 1619942638 | Linda Hartmann | Individual | Clinical Psychologist | Fairfield, OH |
| 1114378890 | Robyn Coleman | Individual | School Psychologist | Fairfield, OH |
| 1558805713 | Rachel M Sparn LLC | Organization | Adult Mental Health Clinic/Center | Fairfield, OH |
| 1750818225 | C Crystal Psych | Organization | Psychologist | Fairfield, OH |
Verify this record
Cross-check NPI 1316912421 against the authoritative CMS record: view Dr. Thomas E. Sullivan 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 2025-09-11.