MRS. CATHY TANG SAYAT
NPI 1104171065
Nurse Anesthetist, Certified Registered in Rancho Cucamonga, CA
About Mrs. Cathy Tang Sayat NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. CATHY TANG SAYAT (NPI 1104171065) is an individual nurse anesthetist, certified registered in Rancho Cucamonga, California, licensed in California (4272) and active in the NPI registry since July 2012. She is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses
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
Mrs. Cathy Tang Sayat 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
3Medicare enrollment records show Cathy Sayat reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fontana, CA 92336
- Reassigned Medicare billing, California enrollment
- 5,228 clinicians in this Medicare group
Hawthorne, CA 90250
- Reassigned Medicare billing, California enrollment
- 11 clinicians in this Medicare group
Crescent City, CA 95531
- Reassigned Medicare billing, California enrollment
- 134 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91730 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Cathy Sayat's NPI number?
The NPI number for Cathy Sayat is 1104171065. It was assigned to this individual provider in the NPPES registry on July 17, 2012.
Where is Cathy Sayat located?
Cathy Sayat practices at 11660 Church St Unit 123, Rancho Cucamonga, CA 91730. The listed phone number is (909) 524-6808.
What is Cathy Sayat's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Cathy Sayat enrolled in Medicare?
Yes. Cathy Sayat 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 Cathy Sayat's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cathy Sayat reassigns Medicare benefits to 3 organizations: Southern California Permanente Medical Group (Fontana, CA), Sky Anesthesia Inc. (Hawthorne, CA) and Sda Services Of Ca (Crescent City, 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 Cathy Sayat'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 Cathy Sayat was last updated on December 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Mrs. Cathy Tang Sayat · NPI 1104171065
Nurse Anesthetist, Certified Registered physician in Rancho Cucamonga, California. Individual provider, active in the CMS NPPES registry since July 17, 2012.
## Identity
- **NPI:** 1104171065 (Entity type: Individual)
- **Enumerated:** July 17, 2012
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 4272 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 11660 CHURCH ST, UNIT 123, Rancho Cucamonga, CA 91730-8917
- **Phone:** (909) 524-6808
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1316463763, Fontana, CA); Sky Anesthesia Inc. (NPI 1962050401, Hawthorne, CA); Sda Services Of Ca (NPI 1417428970, Crescent City, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** December 1, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1104171065) · Data from the CMS NPPES public registry.