DR. RONALD MARC SHARRIN PHD
NPI 1306142112
Psychologist - Adult Development & Aging in Topanga, CA

Q: What is Ronald Sharrin's NPI number?

The NPI number for Ronald Sharrin is 1306142112. It was assigned to this individual provider in the NPPES registry on January 27, 2011.

Q: What is Ronald Sharrin's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Adult Development & Aging, with taxonomy code 103TA0700X.

Q: When was this NPI record last updated?

The NPPES record for Ronald Sharrin was last updated on January 27, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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 January 27, 2011

20774 HILLSIDE DR, TOPANGA, CA 90290(310) 455-1200 Get Directions Write a Review

NPPES record last updated: January 27, 2011. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Ronald Marc Sharrin Phd NPPES

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

DR. RONALD MARC SHARRIN PHD (NPI 1306142112) is an individual adult development & aging provider in Topanga, California, licensed in California (PSY5775) and active in the NPI registry since January 2011.

NPPES Registry Identity

NPI1306142112

Entity TypeIndividualMale

Primary Taxonomy103TA0700X

Provider Legal NameDR. RONALD MARC SHARRINCredential: PHD

Location Address20774 HILLSIDE DRTopanga, CA 90290-3615

Mailing Address20774 Hillside DrTopanga, CA 90290-3615 · (310) 455-1200

Phone(310) 455-1200

Sole ProprietorYes

Enumeration DateJanuary 27, 2011

✔ NPI 1306142112 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · Adult Development & AgingBehavioral Health & Social Service Providers

Taxonomy Code103TA0700X

License✔ Licensed in CA · PSY5775

Definition

A psychologist who specializes in geropsychology, which applies the knowledge and methods of psychology to understanding and helping older persons and their families to maintain well-being, overcome problems and achieve maximum potential during later life. Professional geropsychology appreciates the wide diversity among older adults, the complex ethical issues that can arise in geriatric practice and the importance of interdisciplinary models of care.

20774 HILLSIDE DR, Topanga, CA 90290

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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 Sharrin's NPI number?

The NPI number for Ronald Sharrin is 1306142112. It was assigned to this individual provider in the NPPES registry on January 27, 2011.

Where is Ronald Sharrin located?

Ronald Sharrin practices at 20774 Hillside Dr, Topanga, CA 90290. The listed phone number is (310) 455-1200.

What is Ronald Sharrin's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Adult Development & Aging, with taxonomy code 103TA0700X.

When was this NPI record last updated?

The NPPES record for Ronald Sharrin was last updated on January 27, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.