CHIYON WON
NPI 1588912851
Psychologist - Clinical in San Francisco, CA
About Chiyon Won NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHIYON WON (NPI 1588912851) is an individual clinical provider in San Francisco, California, licensed in California (PSY26896) and active in the NPI registry since August 2012. She is enrolled in Medicare PECOS, maintains a secondary practice location in Walnut Creek, and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Chiyon Won 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 Reassignment
Medicare enrollment records show Chiyon Won reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94118
- Reassigned Medicare billing, California enrollment
- 25 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 94118 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94118
SAN FRANCISCO, CA 94118
SAN FRANCISCO, CA 94118
SAN FRANCISCO, CA 94118
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 Chiyon Won's NPI number?
The NPI number for Chiyon Won is 1588912851. It was assigned to this individual provider in the NPPES registry on August 17, 2012.
Where is Chiyon Won located?
Chiyon Won practices at 601 Clement St, San Francisco, CA 94118. The listed phone number is (415) 668-6955.
What is Chiyon Won's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Chiyon Won enrolled in Medicare?
Yes. Chiyon Won 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 organization bills Medicare for Chiyon Won's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chiyon Won reassigns Medicare benefits to Richmond Area Multi-Services, Inc. (San Francisco, 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 Chiyon Won'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 Chiyon Won was last updated on January 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Chiyon Won · NPI 1588912851
Clinical provider in San Francisco, California. Individual provider, active in the CMS NPPES registry since August 17, 2012.
## Identity
- **NPI:** 1588912851 (Entity type: Individual)
- **Enumerated:** August 17, 2012
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **State license:** PSY26896 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 601 CLEMENT ST, San Francisco, CA 94118-2206
- **Phone:** (415) 668-6955 · **Fax:** (415) 668-0246
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Richmond Area Multi-Services, Inc. (NPI 1548312309, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** January 28, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1588912851) · Data from the CMS NPPES public registry.