NPPES file of Aug 9, 2026

Valerie Lynn Armstrong, MD

Surgical Oncology Physician · San Francisco, CA

Valerie Lynn Armstrong, MD is a surgical oncology physician with a practice address in San Francisco, California, and NPI 1871122911, issued on Apr 1, 2020. Check the license (California A208648, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871122911
Name
Valerie Lynn Armstrong
Credential
MD
Primary taxonomy
Surgical Oncology Physician 2086X0206X
License numbers
A208648 CA
R78008 AZ
Self-reported in NPPES; status is on the state search
Practice location
1600 Divisadero St FL 4, San Francisco, CA 94143
Phone
(415) 353-7687
Enumerated
Apr 1, 2020
Record last updated
May 17, 2026
Medicare enrollment
Enrolled (PECOS I20260530000377); may accept Medicare assignment
Medical or professional school
University Of Miami, Lm Miller School Of Medicine, 2020
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1600 Divisadero St FL 4

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kerwin Cruz De La Rosa, MDSurgery Physician1184171795
  2. Stacy Fuller Baecker, PA-CPhysician Assistant1043543473
  3. Jasleen Kukreja, M.D.Surgery Physician1174556351
  4. Kathryn Menut, MD, MSSurgery Physician1821433285
  5. Michelle Mulder, MDSurgical Oncology Physician1851787675
  6. Nicholas Murphy, MDPulmonary Disease Physician1043770118

Verify Valerie Lynn Armstrong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A208648
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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38% more Medicare Part D claims than the average surgical oncology physician in 2024

120 Medicare Part D claims for 59 beneficiaries, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 46 claims were for opioids.

  1. Valerie Armstrong120
  2. Specialty average87

Most prescribed

  1. Oxycodone Hcl42 claims
  2. Clopidogrel12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $50.35

1 payment: food and beverage; the largest payer was Cook Medical LLC. The 1,132 providers of this specialty with any payment received $4,224.74 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Valerie Armstrong$50.35
  2. Specialty average$4,224.74

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Valerie Lynn Armstrong among 250 surgical oncology physician records in California

Valerie Lynn Armstrong, MD is one of 250 surgical oncology physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 96% of them.

  • NPI issued2020 · 96% of these records are older, 2% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2020 · median 2004 among the 184 with a school on file
  • Record last updated2026 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Oncology Physician providers in California

There are 250 surgical oncology physician records in California.

The 8 surgical oncology physician records with the nearest ZIP codes

  1. Jessica Dzubnar Barker, MDSan Francisco, CA 941431700349750
  2. Laura Esserman, MDSan Francisco, CA 941431679537971
  3. Cheryl Ewing, MDSan Francisco, CA 941431710935028
  4. Sarah HartmanSan Francisco, CA 941431558822122
  5. Ivy HuangSan Francisco, CA 941431043601727
  6. Jordan Jackson, MDSan Francisco, CA 941431902268360
  7. Kimberly Kirkwood, MDSan Francisco, CA 941431669437810
  8. Michelle Mulder, MDSan Francisco, CA 941431851787675

Common questions

What is Valerie Lynn Armstrong, MD's NPI number?

Valerie Lynn Armstrong, MD's National Provider Identifier (NPI) is 1871122911, issued on Apr 1, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Valerie Lynn Armstrong, MD located?

The NPPES record lists a practice address at 1600 Divisadero St FL 4, San Francisco, CA, 94143. Phone: (415) 353-7687. Providers update this record themselves, so call before visiting.

How can I verify Valerie Lynn Armstrong, MD's license?

NPPES lists California license number A208648, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Valerie Lynn Armstrong, MD prescribe under Medicare Part D?

In 2024, Valerie Lynn Armstrong, MD had 120 Medicare Part D claims for 59 beneficiaries; the average among surgical oncology physician prescribers was 87. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.