DR. KAY K YEUNG MD
NPI 1619172178
Anesthesiology in Mission Viejo, CA
About Dr. Kay K Yeung Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KAY K YEUNG MD (NPI 1619172178) is an individual anesthesiology provider in Mission Viejo, California, licensed in California (A111446) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS and is a graduate of University Of Arizona College Of Medicine (2005).
NPPES Registry Identity
Specialties & Licenses 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
Dr. Kay K Yeung Md 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 Kay Yeung reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92869
- Reassigned Medicare billing, California enrollment
- 168 clinicians in this Medicare group
Fountain Valley, CA 97208
- Reassigned Medicare billing, California enrollment
- 59 clinicians in this Medicare group
Anaheim, CA 92807
- Reassigned Medicare billing, California enrollment
- 13,921 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.
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 Kay Yeung's NPI number?
The NPI number for Kay Yeung is 1619172178. It was assigned to this individual provider in the NPPES registry on June 15, 2007.
Where is Kay Yeung located?
Kay Yeung practices at 26732 Crown Valley Pkwy Ste 445, Mission Viejo, CA 92691. The listed phone number is (949) 364-6580.
What is Kay Yeung's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Kay Yeung enrolled in Medicare?
Yes. Kay Yeung 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 Kay Yeung's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kay Yeung reassigns Medicare benefits to 3 organizations: Orange Coast Anesthesia Inc (Orange, CA), Premiercare Anesthesia Fountain Valley Inc (Fountain Valley, CA) and Southern California Permanente Medical Group (Anaheim, 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 Kay Yeung'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 Kay Yeung was last updated on November 29, 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.
# Dr. Kay K Yeung, MD · NPI 1619172178
Anesthesiology physician in Mission Viejo, California. Individual provider, active in the CMS NPPES registry since June 15, 2007.
## Identity
- **NPI:** 1619172178 (Entity type: Individual)
- **Enumerated:** June 15, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A111446 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 26732 CROWN VALLEY PKWY STE 445, Mission Viejo, CA 92691-8522
- **Phone:** (949) 364-6580
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Orange Coast Anesthesia Inc (NPI 1508138256, Orange, CA); Premiercare Anesthesia Fountain Valley Inc (NPI 1831536531, Fountain Valley, CA); Southern California Permanente Medical Group (NPI 1952333460, Anaheim, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Arizona College Of Medicine, class of 2005
## Record status
- **NPPES last updated:** November 29, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1619172178) · Data from the CMS NPPES public registry.