Jennifer Li, MD
Geriatric Medicine (Internal Medicine) Physician · Pasadena, CA
Jennifer Li, MD is a geriatric medicine (internal medicine) physician with a practice address in Pasadena, California, and NPI 1457844839, issued on Jun 11, 2018. Check the license (California A173883, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jennifer Li
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- A173883 CA
Self-reported in NPPES; status is on the state search - Practice location
- 393 E Walnut St, Pasadena, CA 91188
- Phone
- (877) 608-0044
- Enumerated
- Jun 11, 2018
- Record last updated
- Jan 13, 2023
- Medicare enrollment
- Enrolled (PECOS I20230208002548); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 532 in California → Look up another NPI →
Also registered at 393 E Walnut St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cecilia Abban, FNPFamily Nurse Practitioner1437121605
- Brian Apter, M.D.Hospitalist Physician1134418171
- Isabella AquinoMarriage & Family Therapist1700475167
- Annapoorani AsokanInternal Medicine Physician1750083960
- Rozely Barbero, DNP, CRNACertified Registered Nurse Anesthetist1184324097
- Leona Bell, RN CRNPPediatrics Physician1457342941
Verify Jennifer Li in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A173883Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
1,200 Medicare Part D claims for 220 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
- Atorvastatin Calcium81 claims
- Amlodipine Besylate47 claims
- Metoprolol Tartrate40 claims
- Furosemide39 claims
- Mirtazapine39 claims
- Gabapentin36 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
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer Li among 532 geriatric medicine (internal medicine) physician records in California
Jennifer Li, MD 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 2018, is newer than 89% of them.
- NPI issued2018 · 89% of these records are older, 9% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated2018 · median 1999 among the 271 with a school on file
- Record last updated2023 · 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 Pasadena → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Mahmuda Alam, M.D.Glendale, CA 912061568659985
- Paul Liu, M.D.San Marino, CA 911081730195686
- 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
Common questions
What is Jennifer Li, MD's NPI number?
Jennifer Li, MD's National Provider Identifier (NPI) is 1457844839, issued on Jun 11, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Li, MD located?
The NPPES record lists a practice address at 393 E Walnut St, Pasadena, CA, 91188. Phone: (877) 608-0044. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Li, MD's license?
NPPES lists California license number A173883, 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 Jennifer Li, MD prescribe under Medicare Part D?
In 2024, Jennifer Li, MD had 1,200 Medicare Part D claims for 220 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.