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WILLIAM R. SHANKLE MD INC.
NPI 1265078786
Psychiatry & Neurology - Neurology in Newport Beach, CA

Active since November 19, 2019
3900 W COAST HWY STE 310, NEWPORT BEACH, CA 92663(949) 478-8858(949) 242-2465 Get Directions Write a Review

NPPES record last updated: August 20, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 20, 2021, Dec 8, 2020, Nov 19, 2019 (3 updates tracked since 2019).

About William R. Shankle Md Inc. NPPES

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

WILLIAM R. SHANKLE MD INC. (NPI 1265078786) is a healthcare organization registered as a neurology in Newport Beach, California and active in the NPI registry since November 2019. The organization lists Georgette Youssef, Operations Manager, as its authorized official.

NPPES Registry Identity

NPI1265078786
Entity TypeOrganization
Primary Taxonomy2084N0400X
Legal Business NameWILLIAM R. SHANKLE MD INC.
Location Address3900 W COAST HWY STE 310Newport Beach, CA 92663
Mailing Address3900 W Coast Hwy Ste 310Newport Beach, CA 92663 · (949) 478-8858 · Fax (949) 242-2465
Phone(949) 478-8858
Fax(949) 242-2465
Organization SubpartNo
Authorized OfficialGeorgette YoussefOperations Manager · (949) 478-8858
Enumeration DateNovember 19, 2019
Last NPPES UpdateAugust 20, 20213 updates tracked since enumeration
NPPES CertifiedAugust 20, 2021
✔ NPI 1265078786 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
3900 W COAST HWY STE 310, Newport Beach, CA 92663
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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 and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William R. Shankle Md Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to William R. Shankle MD Inc., which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

William Shankle, MS, M.D.
Neurology
NPI 1932246584
3900 W COAST HWY STE 310
Newport Beach, CA 92663
(949) 478-8858
✔ PECOS✔ Accepts MedicareSame address
Sarah Young, NP
Nurse Practitioner
NPI 1942708383
369 SAN MIGUEL DR STE 350
Newport Beach, CA 92660
(949) 478-8858
✔ PECOS✔ Accepts Medicare3.6 mi

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 R. Shankle MD Inc.'s NPI number?

The NPI number for William R. Shankle MD Inc. is 1265078786. It was assigned to this organization in the NPPES registry on November 19, 2019.

Where is William R. Shankle MD Inc. located?

William R. Shankle MD Inc. is located at 3900 W Coast Hwy Ste 310, Newport Beach, CA 92663. The listed phone number is (949) 478-8858.

What is William R. Shankle MD Inc.'s specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is William R. Shankle MD Inc. enrolled in Medicare?

Yes. William R. Shankle MD Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through William R. Shankle MD Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to William R. Shankle MD Inc., in Neurology and Nurse Practitioner. 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. Of these, 1 practice at this address and 2 within 10 miles. 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 R. Shankle MD Inc. was last updated on August 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.