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JEFF HARRIS, M.D. A MEDICAL CORPORATION
NPI 1225556673
Family Medicine in Malibu, CA

Active since September 06, 2017
23805 STUART RANCH RD. #310, MALIBU, CA 90265(714) 389-7420(310) 456-9772 Get Directions Write a Review

NPPES record last updated: May 21, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 21, 2025, Jul 21, 2022 (2 updates tracked since 2022).

About Jeff Harris, M.d. A Medical Corporation NPPES

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

JEFF HARRIS, M.D. A MEDICAL CORPORATION (NPI 1225556673) is a healthcare organization registered as a family medicine in Malibu, California and active in the NPI registry since September 2017. The organization lists Colette Thilken, Office Adminsitrator, as its authorized official.

NPPES Registry Identity

NPI1225556673
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameJEFF HARRIS, M.D. A MEDICAL CORPORATION
Location Address23805 STUART RANCH RD. #310Malibu, CA 90265
Mailing Address23805 Stuart Ranch Rd # 210Malibu, CA 90265-4856 · (714) 389-7420 · Fax (310) 456-9772
Phone(714) 389-7420
Fax(310) 456-9772
Organization SubpartNo
Authorized OfficialColette ThilkenOffice Adminsitrator · (949) 533-0319
Enumeration DateSeptember 6, 2017
Last NPPES UpdateMay 21, 20252 updates tracked since enumeration
NPPES CertifiedMay 21, 2025
✔ NPI 1225556673 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedPediatricsTaxonomy 208000000X · License A24797 (CA)

Other Names 1

Other NameLucian Jefferson Harris Iii

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

Jeff Harris, M.d. 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 Jeff Harris, M.D. A Medical Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Jeff Harris, M.D.
Family Practice
NPI 1437135340
23805 STUART RANCH RD STE 210
Malibu, CA 90265
(310) 456-1891
✔ PECOS✔ Accepts Medicare

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 Jeff Harris, M.D. A Medical Corporation's NPI number?

The NPI number for Jeff Harris, M.D. A Medical Corporation is 1225556673. It was assigned to this organization in the NPPES registry on September 6, 2017. The provider is also known as Lucian Jefferson Harris III.

Where is Jeff Harris, M.D. A Medical Corporation located?

Jeff Harris, M.D. A Medical Corporation is located at 23805 Stuart Ranch Rd. #310, Malibu, CA 90265. The listed phone number is (714) 389-7420.

What is Jeff Harris, M.D. A Medical Corporation's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Jeff Harris, M.D. A Medical Corporation enrolled in Medicare?

Yes. Jeff Harris, M.D. A Medical Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Jeff Harris, M.D. A Medical Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Jeff Harris, M.D. 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 Jeff Harris, M.D. A Medical Corporation was last updated on May 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.