DIANA R TERRILL PHD
NPI 1649494014
Psychologist in Towson, MD

Active since April 13, 2007Opted out of Medicare · through Aug 9, 2027
660 KENILWORTH DR, SUITE 101, TOWSON, MD 21204(410) 830-9568(410) 583-1127 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Diana R Terrill Phd NPPES

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

DIANA R TERRILL PHD (NPI 1649494014) is an individual psychologist in Towson, Maryland, licensed in Maryland (4149) and active in the NPI registry since April 2007. She has opted out of Medicare through August 9, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1649494014
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDIANA R TERRILLCredential: PHD
Location Address660 KENILWORTH DR, SUITE 101Towson, MD 21204
Mailing Address660 Kenilworth Dr, Suite 101Towson, MD 21204 · (410) 830-9568 · Fax (410) 583-1127
Fax(410) 583-1127
Sole ProprietorNo
Enumeration DateApril 13, 2007
Last NPPES UpdateJuly 8, 2007
NPI 1649494014 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 MD · 4149
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.

660 KENILWORTH DR, Towson, MD 21204

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Opted out of Medicare

Diana R Terrill Phd has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from August 9, 2019 through August 9, 2027.

Opt-Out Effective DateAugust 9, 2019
Opt-Out In Effect ThroughAugust 9, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Other Providers at the Same Location NPPES 17

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

Physical Medicine & Rehabilitation (Pain Medicine)
660 KENILWORTH DR, SUITE 200
TOWSON, MD 21204
Psychologist (Clinical)
660 KENILWORTH DR, SUITE 101
TOWSON, MD 21204
Psychologist (Clinical)
660 KENILWORTH DR, SUITE 101
TOWSON, MD 21204
Dentist (Oral and Maxillofacial Surgery)
660 KENILWORTH DR
TOWSON, MD 21204
Psychologist (Clinical)
660 KENILWORTH DR, SUITE 101
TOWSON, MD 21204
Dentist (Periodontics)
660 KENILWORTH DR, SUITE 103
TOWSON, MD 21204
Clinic/Center (Medical Specialty)
660 KENILWORTH DR, STE 200
TOWSON, MD 21204
Dentist
660 KENILWORTH DR, SUIT 103
TOWSON, MD 21204

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 Diana Terrill's NPI number?

The NPI number for Diana Terrill is 1649494014. It was assigned to this individual provider in the NPPES registry on April 13, 2007.

Where is Diana Terrill located?

Diana Terrill practices at 660 Kenilworth Dr Suite 101, Towson, MD 21204. The listed phone number is (410) 830-9568.

What is Diana Terrill's specialty?

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

Is Diana Terrill enrolled in Medicare?

No. Diana Terrill has opted out of Medicare through August 9, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Diana Terrill was last updated on July 8, 2007. NPI Profile syncs with the weekly NPPES data releases published by CMS.