DR. KENT GRELLING PHD
NPI 1053452029
Psychologist in Orinda, CA

Active since February 10, 2007Opted out of Medicare · through Apr 13, 2028
61 AVENIDA DE ORINDA # 110, ORINDA, CA 94563(925) 215-8694(925) 235-7321 Get Directions Write a Review

NPPES record last updated: July 7, 2014. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Kent Grelling Phd NPPES

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

DR. KENT GRELLING PHD (NPI 1053452029) is an individual psychologist in Orinda, California, licensed in California (PSY 15497) and active in the NPI registry since February 2007. He has opted out of Medicare through April 13, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1053452029
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. KENT GRELLINGCredential: PHD
Location Address61 AVENIDA DE ORINDA # 110Orinda, CA 94563-2327
Mailing Address21c Orinda Way # 141Orinda, CA 94563-2534 · (925) 215-8694 · Fax (925) 235-7321
Fax(925) 235-7321
Sole ProprietorYes
Enumeration DateFebruary 10, 2007
Last NPPES UpdateJuly 7, 2014
NPI 1053452029 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
Licenses Licensed in CA · PSY 15497 Licensed in CA · PSY15497
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 ListedPsychologist · ClinicalTaxonomy 103TC0700X · License PSY15497 (CA)
Also ListedPsychologist · Clinical Child & AdolescentTaxonomy 103TC2200X · License PSY15497 (CA)
Also ListedPsychologist · Intellectual and Developmental DisabilitiesTaxonomy 103TM1800X · License PSY 15497 (CA)
61 AVENIDA DE ORINDA # 110, Orinda, CA 94563

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Opted out of Medicare

Dr. Kent Grelling 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 April 13, 2018 through April 13, 2028.

Opt-Out Effective DateApril 13, 2018
Opt-Out In Effect ThroughApril 13, 2028Opt-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.

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 Kent Grelling's NPI number?

The NPI number for Kent Grelling is 1053452029. It was assigned to this individual provider in the NPPES registry on February 10, 2007.

Where is Kent Grelling located?

Kent Grelling practices at 61 Avenida De Orinda # 110, Orinda, CA 94563. The listed phone number is (925) 215-8694.

What is Kent Grelling's specialty?

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

Is Kent Grelling enrolled in Medicare?

No. Kent Grelling has opted out of Medicare through April 13, 2028. 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 Kent Grelling was last updated on July 7, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.