Individual provider

Eva Thomas, PH.D.

Psychologist Counseling Psychologist Psychoanalysis Psychologist Medicare enrolled

Eva Thomas, PH.D. is a Psychologist in Oneida, TN, registered under NPI 1720730021. This provider registers 9 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.

Getting there

The practice address on file is 447 INDUSTRIAL LANE, Oneida, TN 37841. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

447 INDUSTRIAL LANE, Oneida, TN 37841 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
4191 TN Psychologist primary
4191 TN Counseling Psychologist
4191 TN Psychoanalysis Psychologist
297850 KY Clinical Child & Adolescent Psychologist
4191 TN Cognitive & Behavioral Psychologist
4191 TN Intellectual & Developmental Disabilities…
4191 TN Family Psychologist
4191 TN Adult Development & Aging Psychologist
297850 KY Clinical Psychologist
4191 TN Clinical Psychologist
297850 KY Psychologist
4191 TN Clinical Child & Adolescent Psychologist
297850 KY Intellectual & Developmental Disabilities…
297850 KY Cognitive & Behavioral Psychologist
297850 KY Counseling Psychologist

Licences are recorded in 2 states: TN, KY. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Psychologist Billing Independently
PAC ID
3870022247
Enrollment ID
I20250130000491

Medicare enrolment is recorded as approved under the provider type Practitioner - Psychologist Billing Independently. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 2 states

This provider holds licences in 2 states: Kentucky and Tennessee. The practice address on file is in Oneida, TN, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

KY Kentucky
Licence
297850
Specialty
Clinical Child & Adolescent Psychologist
Verify with the KY board →
TN Tennessee practice address
Licence
4191
Specialty
Psychologist
Verify with the TN board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Psychologist covers

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. NUCC Health Care Provider Taxonomy, code 103T00000X
Behavioral Health & Social Service Providers Psychologist

All registered taxonomy codes

This provider registers 15 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
103T00000X Psychologist 4191 TN primary
103TC1900X Counseling Psychologist Counseling 4191 TN
103TP0814X Psychoanalysis Psychologist Psychoanalysis 4191 TN
103TC2200X Clinical Child & Adolescent Psychologist Clinical Child & Adolescent 297850 KY
103TB0200X Cognitive & Behavioral Psychologist Cognitive & Behavioral 4191 TN
103TM1800X Intellectual & Developmental Disabilities Psychologist Intellectual & Developmental Disabilities 4191 TN
103TF0000X Family Psychologist Family 4191 TN
103TA0700X Adult Development & Aging Psychologist Adult Development & Aging 4191 TN
103TC0700X Clinical Psychologist Clinical 297850 KY
103TC0700X Clinical Psychologist Clinical 4191 TN
103T00000X Psychologist 297850 KY
103TC2200X Clinical Child & Adolescent Psychologist Clinical Child & Adolescent 4191 TN
103TM1800X Intellectual & Developmental Disabilities Psychologist Intellectual & Developmental Disabilities 297850 KY
103TB0200X Cognitive & Behavioral Psychologist Cognitive & Behavioral 297850 KY
103TC1900X Counseling Psychologist Counseling 297850 KY

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1720730021 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJan 19, 2022
Last updatedMay 4, 2026
StatusActive
Sole proprietorYes
CredentialPH.D.
Practice address 447 INDUSTRIAL LANE
Oneida, TN 37841
(423) 564-9084
Mailing address 145 HC SMITH DR
Oneida, TN 37841
This record was updated on May 4, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1720730021 passes the NPI check digit test The final digit 1 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 7 2 0 7 3 0 0 2
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 7 4 0 5 3 0 0 4

Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1720730021?
NPI 1720730021 is the National Provider Identifier assigned to Eva Thomas, PH.D. in Oneida, TN. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Psychologist cover?
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…
How do I contact Eva Thomas, PH.D.?
The phone number on file with NPPES is (423) 564-9084, last updated May 4, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Eva Thomas, PH.D. accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1720730021 a valid number?
Yes. 1720730021 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.