NPPES file of Aug 9, 2026

Walter Li, M.D.

Pediatric Cardiology Physician · San Francisco, CA

Walter Li, M.D. is a pediatric cardiology physician with a practice address in San Francisco, California, and NPI 1588866578, issued on Jun 3, 2007. Check the license (California A99014, 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
1588866578
Name
Walter Li
Credential
M.D.
Primary taxonomy
Pediatric Cardiology Physician 2080P0202X
License number
A99014 CA
Self-reported in NPPES; status is on the state search
Practice location
505 Parnassus Avenue, RM 1235, San Francisco, CA 94143
Phone
(415) 353-4141
Enumerated
Jun 3, 2007
Record last updated
Oct 30, 2024
Fax
(415) 353-4144
Medicare enrollment
Enrolled (PECOS I20120607000570); accepts Medicare assignment
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 Walter Li in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A99014
    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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72% fewer Medicare Part D claims than the average pediatric cardiology physician in 2024

21 Medicare Part D claims, against an average of 74 among the 518 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Walter Li21
  2. Specialty average74

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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

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

Bills Medicare through 2 group practices

  1. Ucsf Medical Group Business ServicesSan Francisco, CA
  2. Ucsf Pediatrics AssociatesSan Francisco, CA

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

Walter Li among 363 pediatric cardiology physician records in California

Walter Li, M.D. is one of 363 pediatric cardiology physician records with a practice address in California. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 48% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated2005 · median 2004 among the 164 with a school on file
  • Record last updated2024 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Cardiology Physician providers in California

There are 363 pediatric cardiology physician records in California.

The 8 pediatric cardiology physician records with the nearest ZIP codes

  1. Ian Adatia, MB CHBSan Francisco, CA 941431427085299
  2. James Bristow, M. D.San Francisco, CA 941431134240476
  3. Mark Cocalis, M.D.San Francisco, CA 941431700817913
  4. Jeffrey Gossett, M.D.San Francisco, CA 941431780790378
  5. Lisa Hornberger, M. D.San Francisco, CA 941431033287453
  6. Amy McCammond, M.D.San Francisco, CA 941431093903056
  7. Jeffery Meadows, M.D.San Francisco, CA 941431255365003
  8. Laura Robertson, M.D.San Francisco, CA 941431235167511

Common questions

What is Walter Li, M.D.'s NPI number?

Walter Li, M.D.'s National Provider Identifier (NPI) is 1588866578, issued on Jun 3, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Walter Li, M.D. located?

The NPPES record lists a practice address at 505 Parnassus Avenue, RM 1235, San Francisco, CA, 94143. Phone: (415) 353-4141. Providers update this record themselves, so call before visiting.

How can I verify Walter Li, M.D.'s license?

NPPES lists California license number A99014, 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 Walter Li, M.D. prescribe under Medicare Part D?

In 2024, Walter Li, M.D. had 21 Medicare Part D claims; the average among pediatric cardiology physician prescribers was 74. Part D covers Medicare prescriptions only.

What is Walter Li, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.