RYAN RAHEE YOON MD
NPI 1942435144
Family Medicine in Chula Vista, CA
About Ryan Rahee Yoon Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RYAN RAHEE YOON MD (NPI 1942435144) is an individual family medicine provider in Chula Vista, California, licensed in California (A114600) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (2009).
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
Ryan Rahee Yoon 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 Ryan Yoon reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chula Vista, CA 91910
- Reassigned Medicare billing, California enrollment
- 577 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 68 clinicians in this Medicare group
La Jolla, CA 92037
- Reassigned Medicare billing, California enrollment
- 278 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91911 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 2
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 20
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 Ryan Yoon's NPI number?
The NPI number for Ryan Yoon is 1942435144. It was assigned to this individual provider in the NPPES registry on May 18, 2009.
Where is Ryan Yoon located?
Ryan Yoon practices at 865 3rd Ave Suite 133, Chula Vista, CA 91911. The listed phone number is (619) 498-6200.
What is Ryan Yoon's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Ryan Yoon enrolled in Medicare?
Yes. Ryan Yoon 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 Ryan Yoon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Yoon reassigns Medicare benefits to 3 organizations: Centro De Salud De La Comunidad De San Ysidro, Inc. (Chula Vista, CA), Scripps Mercy Physicians Cardiology Medical Corporation (San Diego, CA) and Scripps Health Inpatient Providers Medical Group Inc. (La Jolla, 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 Ryan Yoon'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 Ryan Yoon was last updated on February 27, 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.
# Ryan Rahee Yoon, MD · NPI 1942435144
Family Medicine physician in Chula Vista, California. Individual provider, active in the CMS NPPES registry since May 18, 2009.
## Identity
- **NPI:** 1942435144 (Entity type: Individual)
- **Enumerated:** May 18, 2009
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A114600 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 865 3RD AVE, SUITE 133, Chula Vista, CA 91911-1300
- **Phone:** (619) 498-6200 · **Fax:** (619) 425-1184
## 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): Centro De Salud De La Comunidad De San Ysidro, Inc. (NPI 1912950882, Chula Vista, CA); Scripps Mercy Physicians Cardiology Medical Corporation (NPI 1477644474, San Diego, CA); Scripps Health Inpatient Providers Medical Group Inc. (NPI 1699043000, La Jolla, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Diego School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** February 27, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1942435144) · Data from the CMS NPPES public registry.