DR. GREGORY ALAN NELSON PHD
NPI 1497757538
Psychologist in Redondo Beach, CA
About Dr. Gregory Alan Nelson Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY ALAN NELSON PHD (NPI 1497757538) is an individual psychologist in Redondo Beach, California, licensed in California (PSY 12389) and active in the NPI registry since August 2005. He has opted out of Medicare through October 1, 2027 and remains eligible to order and refer.
NPPES Registry Identity
Specialties & Licenses
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. Gregory Alan Nelson 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 October 1, 2013 through October 1, 2027.
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 Gregory Nelson's NPI number?
The NPI number for Gregory Nelson is 1497757538. It was assigned to this individual provider in the NPPES registry on August 10, 2005.
Where is Gregory Nelson located?
Gregory Nelson practices at 1617 S Pch Hwy Suite F, Redondo Beach, CA 90277. The listed phone number is (310) 540-2061.
What is Gregory Nelson's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is Gregory Nelson enrolled in Medicare?
No. Gregory Nelson has opted out of Medicare through October 1, 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 Gregory Nelson 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 30 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.