NPPES file of Aug 9, 2026

Judy Liu, M.D.

Internal Medicine Physician · San Francisco, CA

Judy Liu, M.D. is an internal medicine physician with a practice address in San Francisco, California, and NPI 1982929378, issued on Mar 29, 2010. Check the license (California A127472, 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
1982929378
Name
Judy Liu
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A127472 CA
Self-reported in NPPES; status is on the state search
Practice location
1801 Bush St Ste 131D, San Francisco, CA 94109
Phone
(415) 942-2499
Enumerated
Mar 29, 2010
Record last updated
Oct 31, 2024
Fax
(415) 657-8533
Medicare enrollment
Enrolled (PECOS I20131223000658); accepts Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 2010
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 Judy Liu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A127472
    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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97% fewer Medicare Part D claims than the average internal medicine physician in 2024

103 Medicare Part D claims for 60 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Judy Liu103
  2. Specialty average3,176

Most prescribed

  1. Trazodone Hcl11 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: $141.68

2 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Judy Liu$141.68
  2. Specialty average$1,303.06

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

Bills Medicare through one group practice

  1. Permanente Medical Group IncRedwood City, CA

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

Judy Liu among 17,696 internal medicine physician records in California

Judy Liu, M.D. is one of 17,696 internal medicine 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 2010, is newer than 63% of them.

  • NPI issued2010 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2010 · median 2004 among the 11,065 with a school on file
  • Record last updated2024 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,318 internal medicine physician records list a practice address in San Francisco

They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Amy Bossen, M.D.San Francisco, CA 941091558371260
  2. Gary Chan, M.D.San Francisco, CA 941091699702324
  3. Guido Gores, MDSan Francisco, CA 941091528073996
  4. Edwin Hassid, M.D.San Francisco, CA 941091033140702
  5. Gayatri Khanna, M.D.San Francisco, CA 941091639191455
  6. Martin Liberman, MDSan Francisco, CA 941091376530006
  7. Deborah Lindes, M.D.San Francisco, CA 941091952323776
  8. Aravind Mani, MDSan Francisco, CA 941091932151941

Common questions

What is Judy Liu, M.D.'s NPI number?

Judy Liu, M.D.'s National Provider Identifier (NPI) is 1982929378, issued on Mar 29, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Judy Liu, M.D. located?

The NPPES record lists a practice address at 1801 Bush St Ste 131D, San Francisco, CA, 94109. Phone: (415) 942-2499. Providers update this record themselves, so call before visiting.

How can I verify Judy Liu, M.D.'s license?

NPPES lists California license number A127472, 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 Judy Liu, M.D. prescribe under Medicare Part D?

In 2024, Judy Liu, M.D. had 103 Medicare Part D claims for 60 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.