WILLIAM J GREENE MD INC A PROFESSIONAL MEDICAL CORPORATION
NPI 1932666112
Psychiatry & Neurology - Psychiatry in Modesto, CA
About William J Greene Md Inc A Professional Medical Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM J GREENE MD INC A PROFESSIONAL MEDICAL CORPORATION (NPI 1932666112) is a healthcare organization registered as a psychiatry in Modesto, California and active in the NPI registry since February 2019. The organization lists William Greene, Md / Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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 J Greene Md Inc A Professional 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 William J Greene MD Inc A Professional Medical 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 J Greene MD Inc A Professional Medical Corporation's NPI number?
The NPI number for William J Greene MD Inc A Professional Medical Corporation is 1932666112. It was assigned to this organization in the NPPES registry on February 25, 2019.
Where is William J Greene MD Inc A Professional Medical Corporation located?
William J Greene MD Inc A Professional Medical Corporation is located at 1501 Claus Rd, Modesto, CA 95355. The listed phone number is (209) 557-6310.
What is William J Greene MD Inc A Professional Medical Corporation's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is William J Greene MD Inc A Professional Medical Corporation enrolled in Medicare?
Yes. William J Greene MD Inc A Professional Medical Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through William J Greene MD Inc A Professional Medical Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Psychiatry) reassigns their Medicare billing to William J Greene MD Inc A Professional 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 William J Greene MD Inc A Professional Medical Corporation was last updated on February 25, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# William J Greene Md Inc A Professional Medical Corporation · NPI 1932666112
Psychiatry organization in Modesto, California. Organization record, active in the CMS NPPES registry since February 25, 2019.
## Identity
- **NPI:** 1932666112 (Entity type: Organization)
- **Enumerated:** February 25, 2019
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **Organization subpart:** No
- **Authorized official:** William Greene, MD / OWNER
## Practice location
- **Address:** 1501 CLAUS RD, Modesto, CA 95355-9711
- **Phone:** (209) 557-6310
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Psychiatry) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 25, 2019
- **Other identifiers:** Other 1396189791 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1932666112) · Data from the CMS NPPES public registry.