WILLIAM MANDRICK, M.D., INC.
NPI 1124200506
Ophthalmology in Encino, CA

Q: What is William Mandrick, M.D., Inc.'s NPI number?

The NPI number for William Mandrick, M.D., Inc. is 1124200506. It was assigned to this organization in the NPPES registry on November 28, 2007.

Q: What is William Mandrick, M.D., Inc.'s specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Active since November 28, 2007

17310 VENTURA BLVD, ENCINO, CA 91316(818) 728-4260 Get Directions Write a Review

NPPES record last updated: November 28, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About William Mandrick, M.d., Inc. NPPES

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

WILLIAM MANDRICK, M.D., INC. (NPI 1124200506) is a healthcare organization registered as an ophthalmology in Encino, California and active in the NPI registry since November 2007. The organization lists William Mandrick, Ceo, as its authorized official.

NPPES Registry Identity

NPI1124200506

Entity TypeOrganization

Primary Taxonomy207W00000X

Legal Business NameWILLIAM MANDRICK, M.D., INC.

Location Address17310 VENTURA BLVDEncino, CA 91316-3904

Mailing Address44 Hackamore LnBell Canyon, CA 91307-1017 · (818) 716-1103

Phone(818) 728-4260

Organization SubpartNo

Authorized OfficialWilliam MandrickCeo · (818) 728-4260

Enumeration DateNovember 28, 2007

✔ NPI 1124200506 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in CA · G83686

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

17310 VENTURA BLVD, Encino, CA 91316

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Mandrick, M.d., Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by February 28, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date

StateCaliforniaEnrollment IDO20071212000783Non-DME Part B · Clinic/Group PracticeDue dateFebruary 28, 2027

Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to William Mandrick, M.D., Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

William Mandrick, WILLIAM MANDRICK

Ophthalmology

NPI 1932270097

17310 VENTURA BLVD
Encino, CA 91316

(818) 728-4260

✔ 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 William Mandrick, M.D., Inc.'s NPI number?

The NPI number for William Mandrick, M.D., Inc. is 1124200506. It was assigned to this organization in the NPPES registry on November 28, 2007.

Where is William Mandrick, M.D., Inc. located?

William Mandrick, M.D., Inc. is located at 17310 Ventura Blvd, Encino, CA 91316. The listed phone number is (818) 728-4260.

What is William Mandrick, M.D., Inc.'s specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is William Mandrick, M.D., Inc. enrolled in Medicare?

Yes. William Mandrick, M.D., Inc. is registered in the Medicare PECOS enrollment system.

When is William Mandrick, M.D., Inc.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through William Mandrick, M.D., Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Ophthalmology) reassigns their Medicare billing to William Mandrick, M.D., Inc.. 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 William Mandrick, M.D., Inc. was last updated on November 28, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.