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WILLIAM G WOOD MD PC
NPI 1437004223
Surgery in Castro Valley, CA

Active since February 27, 2026
19845 LAKE CHABOT RD STE 200, CASTRO VALLEY, CA 94546(510) 538-5500(510) 538-5505 Get Directions Write a Review

NPPES record last updated: May 11, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About William G Wood Md Pc NPPES

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

WILLIAM G WOOD MD PC (NPI 1437004223) is a healthcare organization registered as a surgery in Castro Valley, California and active in the NPI registry since February 2026. The organization lists William Garin Wood, Physician, as its authorized official.

NPPES Registry Identity

NPI1437004223
Entity TypeOrganization
Primary Taxonomy208600000X
Legal Business NameWILLIAM G WOOD MD PC
Location Address19845 LAKE CHABOT RD STE 200Castro Valley, CA 94546-4055
Mailing Address2601 Blanding Ave Ste C165Alameda, CA 94501-1579 · (415) 505-5456
Phone(510) 538-5500
Fax(510) 538-5505
Organization SubpartNo
Authorized OfficialWilliam Garin WoodPhysician · (415) 505-5456
Enumeration DateFebruary 27, 2026
Last NPPES UpdateMay 11, 2026
NPPES CertifiedMay 11, 2026
✔ NPI 1437004223 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
19845 LAKE CHABOT RD STE 200, Castro Valley, CA 94546
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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 G Wood Md Pc 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 William G Wood MD PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

William Wood, M.D., M.S.
General Surgery
NPI 1821309022
19845 LAKE CHABOT RD STE 200
Castro Valley, CA 94546
(510) 538-5500
✔ 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 G Wood MD PC's NPI number?

The NPI number for William G Wood MD PC is 1437004223. It was assigned to this organization in the NPPES registry on February 27, 2026.

Where is William G Wood MD PC located?

William G Wood MD PC is located at 19845 Lake Chabot Rd Ste 200, Castro Valley, CA 94546. The listed phone number is (510) 538-5500.

What is William G Wood MD PC's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is William G Wood MD PC enrolled in Medicare?

Yes. William G Wood MD PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through William G Wood MD PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (General Surgery) reassigns their Medicare billing to William G Wood MD PC. 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 G Wood MD PC was last updated on May 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.