WILLIAM F PEARCE MD PROFESSIONAL CORPORATION
NPI 1851276620
Urology in Santa Ana, CA
About William F Pearce Md Professional Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM F PEARCE MD PROFESSIONAL CORPORATION (NPI 1851276620) is a healthcare organization registered as an urology in Santa Ana, California and active in the NPI registry since August 2025. The organization lists William F Pearce, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
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 F Pearce Md Professional 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 William F Pearce MD Professional Corporation, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 F Pearce MD Professional Corporation's NPI number?
The NPI number for William F Pearce MD Professional Corporation is 1851276620. It was assigned to this organization in the NPPES registry on August 9, 2025.
Where is William F Pearce MD Professional Corporation located?
William F Pearce MD Professional Corporation is located at 801 N Tustin Ave Ste 204, Santa Ana, CA 92705. The listed phone number is (714) 450-1047.
What is William F Pearce MD Professional Corporation's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is William F Pearce MD Professional Corporation enrolled in Medicare?
Yes. William F Pearce MD Professional Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through William F Pearce MD Professional Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Urology) reassigns their Medicare billing to William F Pearce MD Professional 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 William F Pearce MD Professional Corporation was last updated on January 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# William F Pearce Md Professional Corporation · NPI 1851276620
Urology organization in Santa Ana, California. Organization record, active in the CMS NPPES registry since August 9, 2025.
## Identity
- **NPI:** 1851276620 (Entity type: Organization)
- **Enumerated:** August 9, 2025
- **Primary specialty:** Urology · taxonomy 208800000X
- **Organization subpart:** No
- **Authorized official:** William Pearce, OWNER
## Practice location
- **Address:** 801 N TUSTIN AVE STE 204, Santa Ana, CA 92705-3600
- **Phone:** (714) 450-1047
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Urology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 5, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1851276620) · Data from the CMS NPPES public registry.