Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MRS. DELIA MEDLIN PH.D.
NPI 1558354290
Psychologist in Lewiston, ID

Active since August 29, 2005
422 17TH ST, LEWISTON, ID 83501(208) 743-4680(208) 743-1756 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mrs. Delia Medlin Ph.d. NPPES

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

MRS. DELIA MEDLIN PH.D. (NPI 1558354290) is an individual psychologist in Lewiston, Idaho, licensed in Idaho (PSY202098) and active in the NPI registry since August 2005.

NPPES Registry Identity

NPI1558354290
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameMRS. DELIA MEDLINCredential: PH.D.
Location Address422 17TH STLewiston, ID 83501-2526
Mailing AddressPo Box 2145Lewiston, ID 83501-1465 · (208) 743-4680 · Fax (208) 743-1756
Fax(208) 743-1756
Sole ProprietorNo
Enumeration DateAugust 29, 2005
Last NPPES UpdateJuly 13, 2026
NPI 1558354290 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in ID · PSY202098
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.
422 17TH ST, Lewiston, ID 83501

Other Identifiers 2

OtherN5640ID · Blue Cross Of Idaho
Other000010140817ID · Blueshield Of Idaho

Other Providers at the Same Location NPPES 7

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

Psychologist
422 17TH ST
LEWISTON, ID 83501
Counselor (Mental Health)
422 17TH ST
LEWISTON, ID 83501
Social Worker (Clinical)
422 17TH ST
LEWISTON, ID 83501
Counselor (Mental Health)
422 17TH ST
LEWISTON, ID 83501
Counselor (Mental Health)
422 17TH ST
LEWISTON, ID 83501
Counselor (Mental Health)
422 17TH ST
LEWISTON, ID 83501
Psychologist
422 17TH ST
LEWISTON, ID 83501

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 Delia Medlin's NPI number?

The NPI number for Delia Medlin is 1558354290. It was assigned to this individual provider in the NPPES registry on August 29, 2005.

Where is Delia Medlin located?

Delia Medlin practices at 422 17th St, Lewiston, ID 83501. The listed phone number is (208) 743-4680.

What is Delia Medlin's specialty?

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

When was this NPI record last updated?

The NPPES record for Delia Medlin 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 27 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.