RAY-YOUNG TSAO MD
NPI 1245850775
Emergency Medicine in Tucson, AZ
About Ray-young Tsao Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RAY-YOUNG TSAO MD (NPI 1245850775) is an individual emergency medicine provider in Tucson, Arizona, licensed in California (A184474) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS and is a graduate of Western Michigan Un Homer Stryker School Of Med (2020).
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
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
Ray-young Tsao 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
4Medicare enrollment records show Ray-young Tsao reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Blythe, CA 92225
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1073554002 (California)
- 2,323 clinicians in this Medicare group
San Jose, CA 95128
- Reassigned Medicare billing, California enrollment
- 197 clinicians in this Medicare group
San Jose, CA 95128
- Reassigned Medicare billing, California enrollment
- 314 clinicians in this Medicare group
Fremont, CA 94538
- Reassigned Medicare billing, California enrollment
- 103 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 6
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 85719 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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.
TUCSON, AZ 85719
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 Ray-young Tsao's NPI number?
The NPI number for Ray-young Tsao is 1245850775. It was assigned to this individual provider in the NPPES registry on April 24, 2020.
Where is Ray-young Tsao located?
Ray-young Tsao practices at 1625 N Campbell Ave, Tucson, AZ 85719. The listed phone number is (520) 626-7233.
What is Ray-young Tsao's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Ray-young Tsao enrolled in Medicare?
Yes. Ray-young Tsao 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 Ray-young Tsao's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ray-young Tsao reassigns Medicare benefits to 4 organizations: Cep America-California (Blythe, CA), Emergency Physicians Associates San Jose PC (San Jose, CA), El Camino Health Medical Network, LLC (San Jose, CA) and Emergency Physicians Associates Fremont PC (Fremont, 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 Ray-young Tsao'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 Ray-young Tsao was last updated on June 15, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Ray-Young Tsao, MD · NPI 1245850775
Emergency Medicine physician in Tucson, Arizona. Individual provider, active in the CMS NPPES registry since April 24, 2020.
## Identity
- **NPI:** 1245850775 (Entity type: Individual)
- **Enumerated:** April 24, 2020
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A184474 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1625 N CAMPBELL AVE, Tucson, AZ 85719-4330
- **Phone:** (520) 626-7233
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Cep America-California (NPI 1710826581, Blythe, CA); Emergency Physicians Associates San Jose PC (NPI 1306311576, San Jose, CA); El Camino Health Medical Network, LLC (NPI 1164880761, San Jose, CA); Emergency Physicians Associates Fremont PC (NPI 1790250967, Fremont, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Western Michigan Un Homer Stryker School Of Med, class of 2020
## Record status
- **NPPES last updated:** June 15, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1245850775) · Data from the CMS NPPES public registry.