FRANK CHIHYANG CHEN M.D.
NPI 1104010586
Family Medicine in San Francisco, CA
About Frank Chihyang Chen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
FRANK CHIHYANG CHEN M.D. (NPI 1104010586) is an individual family medicine provider in San Francisco, California, licensed in California (A120912) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2005).
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
Frank Chihyang Chen M.d. 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
2Medicare enrollment records show Frank Chen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 51 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 176 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 7
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 94122 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.
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 8
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 Frank Chen's NPI number?
The NPI number for Frank Chen is 1104010586. It was assigned to this individual provider in the NPPES registry on August 29, 2007.
Where is Frank Chen located?
Frank Chen practices at 1800 31st Ave, San Francisco, CA 94122. The listed phone number is (415) 677-2388.
What is Frank Chen's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Frank Chen enrolled in Medicare?
Yes. Frank Chen 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 Frank Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Frank Chen reassigns Medicare benefits to 2 organizations: Chinese Hospital Association (San Francisco, CA) and North East Medical Services (San Francisco, 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 Frank Chen'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 Frank Chen was last updated on January 13, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Frank Chihyang Chen, M.D. · NPI 1104010586
Family Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since August 29, 2007.
## Identity
- **NPI:** 1104010586 (Entity type: Individual)
- **Enumerated:** August 29, 2007
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A120912 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1800 31ST AVE, San Francisco, CA 94122
- **Phone:** (415) 677-2388
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Chinese Hospital Association (NPI 1487684452, San Francisco, CA); North East Medical Services (NPI 1982784740, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** January 13, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1104010586) · Data from the CMS NPPES public registry.