Irene Ly, MD
Family Medicine Physician · San Francisco, CA
Irene Ly, MD is a family medicine physician with a practice address in San Francisco, California, and NPI 1649704487, issued on Apr 19, 2017. Check the license (California A177784, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Irene Ly
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- A177784 CA
856 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1525 Silver Ave, San Francisco, CA 94134
- Phone
- (415) 657-1700
- Enumerated
- Apr 19, 2017
- Record last updated
- Aug 19, 2022
- Medicare enrollment
- Enrolled (PECOS I20220830004095); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1525 Silver Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janaina Almen, RNRegistered Nurse1861743510
- Steven Ambrose, D.D.S.Dentist1386778314
- Melissa Antoun, LMFTMarriage & Family Therapist1912533993
- Jonathan Barash, MDFamily Medicine Physician1417074881
- Ines Betancourt, LCSWClinical Social Worker1932308400
- Helen Chen, R.N.Community Health Registered Nurse1730378464
Verify Irene Ly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A177784Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average family medicine physician in 2024
1,320 Medicare Part D claims for 145 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 15 claims were for opioids.
Most prescribed
- Atorvastatin Calcium165 claims
- Amlodipine Besylate113 claims
- Losartan Potassium69 claims
- Metformin Hcl47 claims
- Metoprolol Succinate42 claims
- Hydrochlorothiazide40 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 90.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- City And County OF San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Irene Ly among 17,133 family medicine physician records in California
Irene Ly, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 79% of them.
- NPI issued2017 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2019 · median 2005 among the 10,652 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Francisco → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jonathan Barash, MDSan Francisco, CA 941341417074881
- Yitin Chen, DOSan Francisco, CA 941341972842904
- Manal Elkarra, M.D.San Francisco, CA 941341881965143
- Annelise Goldberg, MDSan Francisco, CA 941341245367945
- Harini Jaganathan, MDSan Francisco, CA 941341306422886
- Adrienne Kane, MDSan Francisco, CA 941341104027358
- Marianna Kong, M.D.San Francisco, CA 941341871858399
- Margie Palazuelos, MDSan Francisco, CA 941341508983974
Common questions
What is Irene Ly, MD's NPI number?
Irene Ly, MD's National Provider Identifier (NPI) is 1649704487, issued on Apr 19, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Irene Ly, MD located?
The NPPES record lists a practice address at 1525 Silver Ave, San Francisco, CA, 94134. Phone: (415) 657-1700. Providers update this record themselves, so call before visiting.
How can I verify Irene Ly, MD's license?
NPPES lists California license number A177784, 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 Irene Ly, MD prescribe under Medicare Part D?
In 2024, Irene Ly, MD had 1,320 Medicare Part D claims for 145 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Irene Ly, MD's MIPS final score?
The 2023 MIPS final score is 90.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.