DR. RONALD D GELLIS PH.D.
NPI 1891038352
Clinical Neuropsychologist in Rancho Santa Margarita, CA

Q: What is Ronald Gellis's NPI number?

The NPI number for Ronald Gellis is 1891038352. It was assigned to this individual provider in the NPPES registry on April 3, 2013.

Q: What is Ronald Gellis's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Q: When was this NPI record last updated?

The NPPES record for Ronald Gellis was last updated on June 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since April 03, 2013PECOS Enrolled

25 FLORAMAR, RANCHO SANTA MARGARITA, CA 92688(949) 533-6075 Get Directions Write a Review

NPPES record last updated: June 9, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Ronald D Gellis Ph.d. NPPES

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

DR. RONALD D GELLIS PH.D. (NPI 1891038352) is an individual clinical neuropsychologist in Rancho Santa Margarita, California, licensed in California (PSY9191) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1891038352

Entity TypeIndividualMale

Primary Taxonomy103G00000X

Provider Legal NameDR. RONALD D GELLISCredential: PH.D.

Location Address25 FLORAMARRancho Santa Margarita, CA 92688-1308

Mailing Address25 FloramarRancho Santa Margarita, CA 92688-1308 · (949) 533-6075

Phone(949) 533-6075

Sole ProprietorYes

Enumeration DateApril 3, 2013

Last NPPES UpdateJune 9, 2020

NPPES CertifiedJune 9, 2020

✔ NPI 1891038352 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyClinical NeuropsychologistBehavioral Health & Social Service Providers

Taxonomy Code103G00000X

License✔ Licensed in CA · PSY9191

Definition

A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.

Also ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X · License PSY9191 (CA)

Also ListedCounselor · Mental HealthTaxonomy 101YM0800X · License PSY9191 (CA)

Also ListedCounselor · ProfessionalTaxonomy 101YP2500X · License PSY9191 (CA)

25 FLORAMAR, Rancho Santa Margarita, CA 92688

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Ronald D Gellis Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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 Ronald Gellis's NPI number?

The NPI number for Ronald Gellis is 1891038352. It was assigned to this individual provider in the NPPES registry on April 3, 2013.

Where is Ronald Gellis located?

Ronald Gellis practices at 25 Floramar, Rancho Santa Margarita, CA 92688. The listed phone number is (949) 533-6075.

What is Ronald Gellis's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Is Ronald Gellis enrolled in Medicare?

Yes. Ronald Gellis is registered in the Medicare PECOS enrollment system.

What insurance does Ronald Gellis accept?

Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Ronald Gellis as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ronald Gellis was last updated on June 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.