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RONALD C THURSTON MD A MEDICAL CORPORATION
NPI 1942447990
Psychiatry & Neurology - Psychiatry in Newbury Park, CA

Active since January 13, 2009
3311 OLD CONEJO RD, NEWBURY PARK, CA 91320(805) 388-3337(805) 388-1155 Get Directions Write a Review

NPPES record last updated: September 2, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ronald C Thurston Md A Medical Corporation NPPES

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

RONALD C THURSTON MD A MEDICAL CORPORATION (NPI 1942447990), doing business as Ronald C. Thurston A Medical Corporation, is a healthcare organization registered as a psychiatry in Newbury Park, California and active in the NPI registry since January 2009. The organization lists Ronald C Thurston, Owner, as its authorized official.

NPPES Registry Identity

NPI1942447990
Entity TypeOrganization
Primary Taxonomy2084P0800X
Legal Business NameRONALD C THURSTON MD A MEDICAL CORPORATION
Location Address3311 OLD CONEJO RDNewbury Park, CA 91320-2115
Mailing Address3311 Old Conejo RdNewbury Park, CA 91320-2115 · (805) 388-3337 · Fax (805) 388-1155
Phone(805) 388-3337
Fax(805) 388-1155
Organization SubpartNo
Authorized OfficialRonald C ThurstonOwner · (805) 388-3337
Enumeration DateJanuary 13, 2009
Last NPPES UpdateSeptember 2, 2025
NPPES CertifiedSeptember 2, 2025
✔ NPI 1942447990 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · C-31856
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
3311 OLD CONEJO RD, Newbury Park, CA 91320
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Other Names 1

Former Legal Business NameRonald C. Thurston A Medical Corporation

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ronald C Thurston Md A Medical Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Ronald C Thurston MD A Medical Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Ronald Thurston, MD
Psychiatry
NPI 1386751857
3311 OLD CONEJO RD
Newbury Park, CA 91320
(805) 659-1333
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 C Thurston MD A Medical Corporation's NPI number?

The NPI number for Ronald C Thurston MD A Medical Corporation is 1942447990. It was assigned to this organization in the NPPES registry on January 13, 2009. The provider was formerly known as Ronald C. Thurston A Medical Corporation.

Where is Ronald C Thurston MD A Medical Corporation located?

Ronald C Thurston MD A Medical Corporation is located at 3311 Old Conejo Rd, Newbury Park, CA 91320. The listed phone number is (805) 388-3337.

What is Ronald C Thurston MD A Medical Corporation's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Ronald C Thurston MD A Medical Corporation enrolled in Medicare?

Yes. Ronald C Thurston MD A Medical Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Ronald C Thurston MD A Medical Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Psychiatry) reassigns their Medicare billing to Ronald C Thurston MD A Medical Corporation. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Ronald C Thurston MD A Medical Corporation was last updated on September 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.