VALERIE LYNN ARMSTRONG MD
NPI 1871122911
Surgery - Surgical Oncology in San Francisco, CA
About Valerie Lynn Armstrong Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
VALERIE LYNN ARMSTRONG MD (NPI 1871122911) is an individual surgical oncology provider in San Francisco, California, licensed in California (A208648) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in Scottsdale, and is a graduate of University Of Miami, Lm Miller School Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses 3
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
Valerie Lynn Armstrong Md 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 Valerie Armstrong 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 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 761 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 94143 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
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 Valerie Armstrong's NPI number?
The NPI number for Valerie Armstrong is 1871122911. It was assigned to this individual provider in the NPPES registry on April 1, 2020.
Where is Valerie Armstrong located?
Valerie Armstrong practices at 1600 Divisadero St Fl 4, San Francisco, CA 94143. The listed phone number is (415) 353-7687.
What is Valerie Armstrong's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.
Is Valerie Armstrong enrolled in Medicare?
Yes. Valerie Armstrong 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 Valerie Armstrong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Valerie Armstrong reassigns Medicare benefits to 3 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and Ucsf Dept Of Surgery (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 Valerie Armstrong'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 Valerie Armstrong was last updated on May 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Valerie Lynn Armstrong, MD · NPI 1871122911
Surgical Oncology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 1, 2020.
## Identity
- **NPI:** 1871122911 (Entity type: Individual)
- **Enumerated:** April 1, 2020
- **Primary specialty:** Surgery - Surgical Oncology · taxonomy 2086X0206X
- **State license:** A208648 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1600 DIVISADERO ST FL 4, San Francisco, CA 94143-3010
- **Phone:** (415) 353-7687
## 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): University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); Ucsf Dept Of Surgery (NPI 1477627537, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Miami, Lm Miller School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** May 17, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1871122911) · Data from the CMS NPPES public registry.