GIHYUN MYUNG
NPI 1902160922
Internal Medicine - Rheumatology in Fountain Valley, CA
About Gihyun Myung NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GIHYUN MYUNG (NPI 1902160922) is an individual rheumatology provider in Fountain Valley, California, licensed in California (129272) and active in the NPI registry since June 2012. She is enrolled in Medicare PECOS and is a graduate of Northwestern University Feinberg Medical School (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 (PECOS)
Gihyun Myung is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gihyun Myung reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
South Gate, CA 90280
- Reassigned Medicare billing, California enrollment
- 88 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 92708 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FOUNTAIN VALLEY, CA 92708
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 Gihyun Myung's NPI number?
The NPI number for Gihyun Myung is 1902160922. It was assigned to this individual provider in the NPPES registry on June 25, 2012.
Where is Gihyun Myung located?
Gihyun Myung practices at 11100 Warner Ave Ste 200, Fountain Valley, CA 92708. The listed phone number is (949) 569-3034.
What is Gihyun Myung's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Gihyun Myung enrolled in Medicare?
Yes. Gihyun Myung is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gihyun Myung's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gihyun Myung reassigns Medicare benefits to Complete Care Community Health Center, Inc (South Gate, CA). The 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 Gihyun Myung'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 Gihyun Myung was last updated on January 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months 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.
# Gihyun Myung · NPI 1902160922
Rheumatology physician in Fountain Valley, California. Individual provider, active in the CMS NPPES registry since June 25, 2012.
## Identity
- **NPI:** 1902160922 (Entity type: Individual)
- **Enumerated:** June 25, 2012
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 129272 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 11100 WARNER AVE STE 200, Fountain Valley, CA 92708-7510
- **Phone:** (949) 569-3034
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Complete Care Community Health Center, Inc (NPI 1811397888, South Gate, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Northwestern University Feinberg Medical School, class of 2012
## Record status
- **NPPES last updated:** January 10, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1902160922) · Data from the CMS NPPES public registry.