NPPES file of Aug 9, 2026

Liza Valdivia, M.D.

Infectious Disease Physician · San Francisco, CA

Liza Valdivia, M.D. is an infectious disease physician with a practice address in San Francisco, California, and NPI 1386904274, issued on May 24, 2012. Check the license (California A166589, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386904274
Name
Liza Valdivia
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
A166589 CA
Self-reported in NPPES; status is on the state search
Practice location
400 Parnassus Ave, 2ND Floor, San Francisco, CA 94143
Phone
(415) 353-2626
Enumerated
May 24, 2012
Record last updated
Oct 27, 2022
Fax
(415) 353-3538
Medicare enrollment
Enrolled (PECOS I20200415000197); accepts Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 2012
Telehealth
Offers telehealth (CMS)
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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Verify Liza Valdivia in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A166589
    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

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69% more Medicare Part D claims than the average infectious disease physician in 2024

1,167 Medicare Part D claims for 66 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims. 21 claims were for opioids.

  1. Liza Valdivia1,167
  2. Specialty average689

Most prescribed

  1. Biktarvy62 claims
  2. Atorvastatin Calcium42 claims
  3. Tivicay38 claims
  4. Gabapentin35 claims
  5. Descovy34 claims
  6. Acyclovir32 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $21.89

1 payment: food and beverage; the largest payer was Gilead Sciences, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Liza Valdivia$21.89
  2. Specialty average$4,362.19

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

Bills Medicare through 3 group practices

  1. Regents OF The University OF CaliforniaSan Francisco, CA
  2. Ucsf Medical Group Business ServicesBurlingame, CA
  3. University OF California San FranciscoSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Liza Valdivia among 1,119 infectious disease physician records in California

Liza Valdivia, M.D. is one of 1,119 infectious disease physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 74% of them.

  • NPI issued2012 · 74% of these records are older, 23% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2012 · median 2003 among the 735 with a school on file
  • Record last updated2022 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in California

There are 1,119 infectious disease physician records in California.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Cameron Ashbaugh, MDSan Francisco, CA 941431114900537
  2. Oliver Bacon, M.D.San Francisco, CA 941431497863146
  3. Huyen Cao, MDSan Francisco, CA 941431700842234
  4. Peter Chin-Hong, MDSan Francisco, CA 941431215988563
  5. John Fangman, MDSan Francisco, CA 941431881645737
  6. Timothy Henrich, M.D.San Francisco, CA 941431902831902
  7. Vivek Jain, M.D.San Francisco, CA 941431093747248
  8. Jane Koehler, MDSan Francisco, CA 941431689632747

Common questions

What is Liza Valdivia, M.D.'s NPI number?

Liza Valdivia, M.D.'s National Provider Identifier (NPI) is 1386904274, issued on May 24, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Liza Valdivia, M.D. located?

The NPPES record lists a practice address at 400 Parnassus Ave, 2ND Floor, San Francisco, CA, 94143. Phone: (415) 353-2626. Providers update this record themselves, so call before visiting.

How can I verify Liza Valdivia, M.D.'s license?

NPPES lists California license number A166589, 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 Liza Valdivia, M.D. prescribe under Medicare Part D?

In 2024, Liza Valdivia, M.D. had 1,167 Medicare Part D claims for 66 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

What is Liza Valdivia, M.D.'s MIPS final score?

The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.