NPPES file of Aug 9, 2026

Dandan Liu, M.D.

Geriatric Medicine (Internal Medicine) Physician · San Francisco, CA

Dandan Liu, M.D. is a geriatric medicine (internal medicine) physician with a practice address in San Francisco, California, and NPI 1407182694, issued on Oct 23, 2009. Check the license (California A110695, 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
1407182694
Name
Dandan Liu
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
A110695 CA
Self-reported in NPPES; status is on the state search
Practice location
1333 Bush St, San Francisco, CA 94109
Phone
(415) 292-8803
Enumerated
Oct 23, 2009
Record last updated
Dec 17, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(415) 292-8845
Medicare enrollment
Enrolled (PECOS I20180518001613); accepts Medicare assignment
Medical or professional school
University Of California, Davis School Of Medicine, 2008
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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8 nearest geriatric medicine (internal medicine) physician records → All 532 in California → Look up another NPI →

Also registered at 1333 Bush St

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

  1. Olivia Adams, OTROccupational Therapist1992829329
  2. Emma Cheung, P.T.Geriatric Physical Therapist1861452427
  3. Deborah Dang, M.D.Geriatric Medicine (Internal Medicine) Physician1558363978
  4. Catherine Eng, MDGeriatric Medicine (Internal Medicine) Physician1184627515
  5. Caren Gould, M.D.Geriatric Medicine (Internal Medicine) Physician1508867128
  6. Sze Yan Janelle Ho, MD, MHSGeriatric Medicine (Internal Medicine) Physician1366832586

Verify Dandan 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 A110695    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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55% more Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

6,580 Medicare Part D claims for 906 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 211 claims were for opioids.

  1. Dandan Liu6,580
  2. Specialty average4,246

Most prescribed

  1. Atorvastatin Calcium582 claims
  2. Donepezil Hcl400 claims
  3. Losartan Potassium286 claims
  4. Memantine Hcl284 claims
  5. Amlodipine Besylate261 claims
  6. Levothyroxine Sodium243 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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncSouth San Francisco, CA

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

Dandan Liu among 532 geriatric medicine (internal medicine) physician records in California

Dandan Liu, M.D. is one of 532 geriatric medicine (internal medicine) physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 70% of them.

  • NPI issued2009 · 70% of these records are older, 29% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated2008 · median 1999 among the 271 with a school on file
  • Record last updated2021 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in California

There are 532 geriatric medicine (internal medicine) physician records in California.

All 532 in California → Every provider in San Francisco → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Deborah Dang, M.D.San Francisco, CA 941091558363978
  2. Catherine Eng, MDSan Francisco, CA 941091184627515
  3. Caren Gould, M.D.San Francisco, CA 941091508867128
  4. Sze Yan Janelle Ho, MD, MHSSan Francisco, CA 941091366832586
  5. Teresa Pham, MDSan Francisco, CA 941091407850977
  6. Maria Rivero, MDSan Francisco, CA 941091194865485
  7. Candace Kim, M.D.San Francisco, CA 941101952377079
  8. Jay Luxenberg, M.D.San Francisco, CA 941121053316828

Common questions

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

Dandan Liu, M.D.'s National Provider Identifier (NPI) is 1407182694, issued on Oct 23, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Dandan Liu, M.D. located?

The NPPES record lists a practice address at 1333 Bush St, San Francisco, CA, 94109. Phone: (415) 292-8803. Providers update this record themselves, so call before visiting.

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

NPPES lists California license number A110695, 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 Dandan Liu, M.D. prescribe under Medicare Part D?

In 2024, Dandan Liu, M.D. had 6,580 Medicare Part D claims for 906 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.