TOM S YAO M.D.
NPI 1659482909
Anesthesiology in Hemet, CA
About Tom S Yao M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TOM S YAO M.D. (NPI 1659482909) is an individual anesthesiology provider in Hemet, California, licensed in California (A89060) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Texas Medical Branch At Galveston (2000).
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 and accepts Medicare assignment
Tom S Yao M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Tom Yao reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Murrieta, CA 92562
- Reassigned Medicare billing, California enrollment
- 349 clinicians in this Medicare group
Redlands, CA 92373
- Reassigned Medicare billing, California enrollment
- 241 clinicians in this Medicare group
Riverside, CA 92506
- Reassigned Medicare billing, California enrollment
- 27 clinicians in this Medicare group
Corona, CA 92882
- Reassigned Medicare billing, California enrollment
- 70 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.
Areas of Expertise CMS Part B claims 5
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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
HEMET, CA 92543
HEMET, CA 92543
HEMET, CA 92543
HEMET, CA 92543
HEMET, CA 92543
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 Tom Yao's NPI number?
The NPI number for Tom Yao is 1659482909. It was assigned to this individual provider in the NPPES registry on August 31, 2006.
Where is Tom Yao located?
Tom Yao practices at 1117 E Devonshire Ave, Hemet, CA 92543. The listed phone number is (951) 652-2811.
What is Tom Yao's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Tom Yao enrolled in Medicare?
Yes. Tom Yao is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Tom Yao's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tom Yao reassigns Medicare benefits to 4 organizations: Riverside Medical Clinic, Inc (Murrieta, CA), Darin Rentz Do PC (Redlands, CA), Riverside Anesthesia Partners Inc (Riverside, CA) and Corona Anesthesia Group, Inc. (Corona, 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 Tom Yao'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 Tom Yao was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.