Paul T. Liu, M.D.
Geriatric Medicine (Internal Medicine) Physician · San Marino, CA
Paul T. Liu, M.D. is a geriatric medicine (internal medicine) physician with a practice address in San Marino, California, and NPI 1730195686, issued on Jul 31, 2006. Check the license (California G067740, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Paul T. Liu
- Credential
- M.D.
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License numbers
- G067740 CA
G67740 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2233 Huntington Dr Ste 12, San Marino, CA 91108
- Phone
- (626) 796-0821
- Enumerated
- Jul 31, 2006
- Record last updated
- Dec 10, 2025
- Fax
- (626) 796-0619
- Medicare enrollment
- Enrolled (PECOS I20050217000502); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 532 in California → Look up another NPI →
Verify Paul T. Liu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G067740Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% more Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
6,313 Medicare Part D claims for 226 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium500 claims
- Lisinopril321 claims
- Metformin Hcl237 claims
- Amlodipine Besylate228 claims
- Levothyroxine Sodium227 claims
- Furosemide166 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
- Amg A Professional Medical CorporationAlhambra, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Paul T. Liu among 532 geriatric medicine (internal medicine) physician records in California
Paul T. 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 46% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated1988 · median 1999 among the 271 with a school on file
- Record last updated2025 · 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 Marino → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Linda Aoyama, M.D.Pasadena, CA 911051760458533
- Norman Chien, MDPasadena, CA 911051184696999
- Steven Doan, M.D.Pasadena, CA 911051366516478
- Arbis Rojas, MDPasadena, CA 911051235460510
- Theresa WongPasadena, CA 911051215469176
- Stephen Henry, M.D.Pasadena, CA 911041811925183
- Jennifer Li, MDPasadena, CA 911881457844839
- Wesley Woo, M.D.La Canada, CA 910111629271879
Common questions
What is Paul T. Liu, M.D.'s NPI number?
Paul T. Liu, M.D.'s National Provider Identifier (NPI) is 1730195686, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Paul T. Liu, M.D. located?
The NPPES record lists a practice address at 2233 Huntington Dr Ste 12, San Marino, CA, 91108. Phone: (626) 796-0821. Providers update this record themselves, so call before visiting.
How can I verify Paul T. Liu, M.D.'s license?
NPPES lists California license number G067740, 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 Paul T. Liu, M.D. prescribe under Medicare Part D?
In 2024, Paul T. Liu, M.D. had 6,313 Medicare Part D claims for 226 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.
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.