Zi Ying Li, M.D
NPI 1588160550 · Rheumatology Physician · Daly City, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zi Ying Li, M.D is a Rheumatology Physician provider in Daly City, CA (NPI 1588160550).
Provider details
- NPI number
- 1588160550
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- No
- License
- A173309 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
429 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 302 | $123 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 91 | $167 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 19 | $173 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 17 | $219 |
Typical Medicare-allowed amounts for these services range $123–$219 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lidocaine | 160 | 68 |
| Diclofenac Sodium | 118 | 55 |
| Hydroxychloroquine Sulfate | 113 | 42 |
| Prednisone | 86 | 36 |
| Methotrexate Sodiumbrand: Methotrexate | 44 | 12 |
| Duloxetine Hcl | 41 | 15 |
| Pilocarpine Hcl | 23 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,790 across 141 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 782 Medical Center Dr E Ste 305Clovis, CA 93611-6892Phone: (559) 387-2140
- 728 Pacific Ave Ste 406San Francisco, CA 94133-4449Phone: (415) 841-3833Fax: (415) 727-9145
Registry dates
- Enumerated
- 2018-03-30
- Last updated
- 2026-03-04
- Certified
- 2026-03-04
Frequently asked questions
- What is Zi Ying Li's NPI number?
- Zi Ying Li's National Provider Identifier (NPI) is 1588160550, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zi Ying Li's specialty?
- Zi Ying Li is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Zi Ying Li located?
- Zi Ying Li's practice location on file with NPPES is 1850 Sullivan Ave # 488, Daly City, CA 94015-2221.
- What is Zi Ying Li's phone number?
- The practice phone number listed in the NPPES registry for Zi Ying Li is (415) 841-3833.
- Does Zi Ying Li accept Medicare?
- Zi Ying Li is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zi Ying Li's NPI active?
- Yes — Zi Ying Li's NPI (1588160550) is active in the NPPES registry as of the last update on 2026-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.