CARMEN W LIANG DO, MPH
NPI 1700894813
Family Medicine in San Francisco, CA
About Carmen W Liang Do, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CARMEN W LIANG DO, MPH (NPI 1700894813) is an individual family medicine provider in San Francisco, California, licensed in Washington (OP00001898) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Carmen W Liang Do, Mph is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Carmen Liang 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 94110
- Reassigned Medicare billing, California enrollment
- 1,573 clinicians in this Medicare group
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 842 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 94110 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 94110
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
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 Carmen Liang's NPI number?
The NPI number for Carmen Liang is 1700894813. It was assigned to this individual provider in the NPPES registry on August 4, 2006.
Where is Carmen Liang located?
Carmen Liang practices at 1001 Potrero Ave, San Francisco, CA 94110. The listed phone number is (415) 206-8610.
What is Carmen Liang's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Carmen Liang enrolled in Medicare?
Yes. Carmen Liang is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Carmen Liang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carmen Liang reassigns Medicare benefits to 2 organizations: City & County Of San Francisco (San Francisco, CA) and University Of California Sfgh Medical Group (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 Carmen Liang'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 Carmen Liang was last updated on January 30, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Carmen W Liang, DO, MPH · NPI 1700894813
Family Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since August 4, 2006.
## Identity
- **NPI:** 1700894813 (Entity type: Individual)
- **Enumerated:** August 4, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** OP00001898 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1001 POTRERO AVE, San Francisco, CA 94110-3518
- **Phone:** (415) 206-8610
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): City & County Of San Francisco (NPI 1083648810, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1174598296, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 30, 2017
- **Other identifiers:** Medicare ID-Type Unspecified 8855726 (WA); Medicaid 8433765 (WA); Other 8907039 (WA); and 2 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1700894813) · Data from the CMS NPPES public registry.