DR. MICHAEL S BASCH M.D.
NPI 1790889350
Internal Medicine in Temecula, CA
About Dr. Michael S Basch M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL S BASCH M.D. (NPI 1790889350) is an individual internal medicine provider in Temecula, California, licensed in California (015430) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, holds a CLIA Microscopy certificate valid through September 7, 2028, and is a graduate of Other (1994).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Michael S Basch M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Michael Basch reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Temecula, CA 92590
- Reassigned Medicare billing, California enrollment
- 18 clinicians in this Medicare group
Temecula, CA 92590
- Reassigned Medicare billing, California enrollment
Wildomar, CA 92595
- Reassigned Medicare billing, California enrollment
- 69 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.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate for Provider-Performed Microscopy Procedures (PPMP) 05D0950811
Michael Basch MD · Temecula, CAAreas of Expertise CMS Part B claims 15
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92590 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 23
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Michael Basch's NPI number?
The NPI number for Michael Basch is 1790889350. It was assigned to this individual provider in the NPPES registry on September 12, 2006.
Where is Michael Basch located?
Michael Basch practices at 41593 Winchester Rd Ste 101, Temecula, CA 92590. The listed phone number is (951) 719-1111.
What is Michael Basch's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Michael Basch enrolled in Medicare?
Yes. Michael Basch is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Michael Basch's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Basch reassigns Medicare benefits to 3 organizations: Inpatient Physicians Network Inc (Temecula, CA), Talia Medical Group, A Professional Corporation (Temecula, CA) and Acute Care Associates Of California PC (Wildomar, CA). Each 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 Michael Basch's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Does Michael Basch hold a CLIA laboratory certificate?
Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 05D0950811) is associated with this NPI, valid through September 7, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Michael Basch was last updated on July 2, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.