Irene Ly, MD
NPI 1649704487 · Family Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1649704487
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 856 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
313 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 221 | $156 |
| Administration of Influenza Virus VaccineG0008 | 34 | $3 |
| Admn Sarscov2 Vacc 1 Dose90480 | 24 | $25 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 17 | $9 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 17 | $79 |
Typical Medicare-allowed amounts for these services range $3–$156 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 165 | 54 |
| Amlodipine Besylate | 113 | 39 |
| Losartan Potassium | 69 | 25 |
| Metformin Hcl | 47 | 15 |
| Metoprolol Succinate | 42 | 11 |
| Hydrochlorothiazide | 40 | 15 |
| Pantoprazole Sodium |
Practice location
Mailing address
Additional practice locations (2)
- 4610 X StSacramento, CA 95817-2200Phone: (916) 955-8984
- 995 Potrero Ave Bldg 83San Francisco, CA 94110-2859Phone: (628) 206-5252Fax: (779) 204-2454
Registry dates
- Enumerated
- 2017-04-19
- Last updated
- 2022-08-19
- Certified
- 2022-08-17
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.