Lily Chu
NPI 1700346475 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lily Chu is a Internal Medicine Physician provider in San Francisco, CA (NPI 1700346475).
Provider details
- NPI number
- 1700346475
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 317420 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
443 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 95 | $6 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 60 | $8 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 46 | $13 |
| Vitamin D-3 Level82306 | 43 | $29 |
| Hemoglobin A1c Level83036 | 30 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test85027 | 29 | $6 |
| Colorectal Cancer Screening; Fecal Occult Blood Test, Immunoassay, 1-3 Simultaneous |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 204 | 85 |
| Amlodipine Besylate | 55 | 25 |
| Losartan Potassium | 54 | 22 |
| Empagliflozinbrand: Jardiance | 51 | 20 |
| Triamcinolone Acetonide | 30 | 17 |
| Alendronate Sodium | 28 | 13 |
| Famotidine | 26 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-03-20
- Last updated
- 2023-07-21
- Certified
- 2023-07-21
Frequently asked questions
- What is Lily Chu's NPI number?
- Lily Chu's National Provider Identifier (NPI) is 1700346475, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lily Chu's specialty?
- Lily Chu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lily Chu located?
- Lily Chu's practice location on file with NPPES is 1520 Stockton St, San Francisco, CA 94133-3354.
- What is Lily Chu's phone number?
- The practice phone number listed in the NPPES registry for Lily Chu is (415) 391-9686.
- Does Lily Chu accept Medicare?
- Lily Chu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lily Chu's NPI active?
- Yes — Lily Chu's NPI (1700346475) is active in the NPPES registry as of the last update on 2023-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.