VIVIAN LING
NPI 1992455406
Family Medicine in San Francisco, CA
About Vivian Ling NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
VIVIAN LING (NPI 1992455406) is an individual family medicine provider in San Francisco, California, licensed in California (A189426) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS, maintains a secondary practice location in San Francisco, and is a graduate of University Of Michigan Medical School (2022).
NPPES Registry Identity
Specialties & Licenses
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
Vivian Ling 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 Vivian Ling reassigns Medicare billing to 3 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
- Also billed through NPI 1073836060 (California)
- 842 clinicians in this Medicare group
San Francisco, CA 94109
- Reassigned Medicare billing, California enrollment
- 213 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
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 Vivian Ling's NPI number?
The NPI number for Vivian Ling is 1992455406. It was assigned to this individual provider in the NPPES registry on March 27, 2022.
Where is Vivian Ling located?
Vivian Ling practices at 1001 Potrero Ave Bldg 80-83, San Francisco, CA 94110. The listed phone number is (628) 206-5252.
What is Vivian Ling's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Vivian Ling enrolled in Medicare?
Yes. Vivian Ling 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 Vivian Ling's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Vivian Ling reassigns Medicare benefits to 3 organizations: City & County Of San Francisco (San Francisco, CA), University Of California Sfgh Medical Group (San Francisco, CA) and Pacific Inpatient 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 Vivian Ling'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 Vivian Ling was last updated on October 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Vivian Ling · NPI 1992455406
Family Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since March 27, 2022.
## Identity
- **NPI:** 1992455406 (Entity type: Individual)
- **Enumerated:** March 27, 2022
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A189426 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1001 POTRERO AVE BLDG 80-83, San Francisco, CA 94110-3518
- **Phone:** (628) 206-5252
## 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): City & County Of San Francisco (NPI 1083648810, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1174598296, San Francisco, CA); Pacific Inpatient Medical Group (NPI 1447447248, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 2022
## Record status
- **NPPES last updated:** October 21, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1992455406) · Data from the CMS NPPES public registry.