WILLIAM LUMBA QUISMORIO M.D.
NPI 1326052572
General Practice in Antioch, CA
About William Lumba Quismorio M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM LUMBA QUISMORIO M.D. (NPI 1326052572) is an individual general practice provider in Antioch, California, licensed in California (A41861) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
William Lumba Quismorio M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show William Quismorio reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Antioch, CA 94509
- Reassigned Medicare billing, California enrollment
- 12 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ANTIOCH, CA 94509
ANTIOCH, CA 94509
ANTIOCH, CA 94509
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 Quismorio's NPI number?
The NPI number for William Quismorio is 1326052572. It was assigned to this individual provider in the NPPES registry on July 27, 2006.
Where is William Quismorio located?
William Quismorio practices at 3707 Sunset Ln, Antioch, CA 94509. The listed phone number is (925) 522-0124.
What is William Quismorio's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is William Quismorio enrolled in Medicare?
Yes. William Quismorio is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for William Quismorio's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Quismorio reassigns Medicare benefits to Baart Community Healthcare (Antioch, CA). The 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 William Quismorio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for William Quismorio was last updated on October 6, 2008. 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.