Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. THOMAS E. SULLIVAN PH.D.
NPI 1316912421
Psychologist in Fairfield, OH

Active since February 22, 2006PECOS Enrolled
2810 MACK RD, FAIRFIELD, OH 45014(513) 874-4530(513) 346-3811 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Dr. Thomas E. Sullivan Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. THOMAS E. SULLIVAN PH.D. (NPI 1316912421) is an individual psychologist in Fairfield, Ohio, licensed in Ohio (5083) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1995).

NPPES Registry Identity

NPI1316912421
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. THOMAS E. SULLIVANCredential: PH.D.
Location Address2810 MACK RDFairfield, OH 45014-5130
Mailing Address2810 Mack RdFairfield, OH 45014-5130 · (513) 874-4530 · Fax (513) 346-3811
Fax(513) 346-3811
Sole ProprietorNo
Medical School CMSOtherGraduated 1995
Enumeration DateFebruary 22, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPI 1316912421 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in OH · 5083
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
Also ListedClinical NeuropsychologistTaxonomy 103G00000X · License 5083 (OH)
2810 MACK RD, Fairfield, OH 45014

Other Identifiers 3

Other257968OH · Value Options Provider Id
Other000000066833OH · Anthem Id#
OtherA294802OH · Value Options Vin

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas E. Sullivan Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5496642662
PECOS Enrollment IDI20040302000948
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Psychologist (School)
2810 MACK RD
FAIRFIELD, OH 45014
Clinic/Center (Adult Mental Health)
2810 MACK RD
FAIRFIELD, OH 45014
Psychologist (Clinical)
2810 MACK RD
FAIRFIELD, OH 45014
Psychologist
2810 MACK RD
FAIRFIELD, OH 45014
Psychologist
2810 MACK RD
FAIRFIELD, OH 45014

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thomas Sullivan's NPI number?

The NPI number for Thomas Sullivan is 1316912421. It was assigned to this individual provider in the NPPES registry on February 22, 2006.

Where is Thomas Sullivan located?

Thomas Sullivan practices at 2810 Mack Rd, Fairfield, OH 45014. The listed phone number is (513) 874-4530.

What is Thomas Sullivan's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Thomas Sullivan enrolled in Medicare?

Yes. Thomas Sullivan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Thomas Sullivan accept?

Health plans from MedMutual list Thomas Sullivan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Thomas Sullivan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.