Louise Aronson, M.D.
Geriatric Medicine (Internal Medicine) Physician · San Francisco, CA
Louise Aronson, M.D. is a geriatric medicine (internal medicine) physician with a practice address in San Francisco, California, and NPI 1780786772, issued on Sep 1, 2006. Check the license (California G78498, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Louise Aronson
- Credential
- M.D.
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- G78498 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3333 California St Ste 380 Box 1265, San Francisco, CA 94143
- Phone
- (415) 514-3577
- Enumerated
- Sep 1, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (415) 514-0702
- Medicaid ID
- 00G784980 CA
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 532 in California → Look up another NPI →
Verify Louise Aronson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G78498Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
12 Medicare Part D claims, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D.
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).
Louise Aronson among 532 geriatric medicine (internal medicine) physician records in California
Louise Aronson, 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 fileNo · 51% of these records are
- 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 Francisco → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Brittany Barba, MDSan Francisco, CA 941431972244960
- Monica ChengSan Francisco, CA 941431386107415
- Rebecca Conant, M.D.San Francisco, CA 941431083656656
- William DeardorffSan Francisco, CA 941431003348830
- Miranda Dunlop, M.D.San Francisco, CA 941431407888738
- Todd James, MDSan Francisco, CA 941431306989223
- Anuj Kadel, M.B.B.SSan Francisco, CA 941431376284133
- Fareeha Majeed, MDSan Francisco, CA 941431134325541
Common questions
What is Louise Aronson, M.D.'s NPI number?
Louise Aronson, M.D.'s National Provider Identifier (NPI) is 1780786772, issued on Sep 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Louise Aronson, M.D. located?
The NPPES record lists a practice address at 3333 California St Ste 380 Box 1265, San Francisco, CA, 94143. Phone: (415) 514-3577. Providers update this record themselves, so call before visiting.
How can I verify Louise Aronson, M.D.'s license?
NPPES lists California license number G78498, 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 Louise Aronson, M.D. prescribe under Medicare Part D?
In 2024, Louise Aronson, M.D. had 12 Medicare Part D claims; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.
What is Louise Aronson, 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.