Quick answers
- Does Ali A. Zaidi accept Medicare assignment?
- Yes. Medicare's clinician data says Ali A. Zaidi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Ali A. Zaidi see?
- In 2024, CMS data shows 1,131 Original Medicare patients and 13,812 services for Ali A. Zaidi. This counts Original Medicare only and measures volume, not quality.
- What is Ali A. Zaidi's NPI number?
- 1417006479. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Ali A. Zaidi, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,131 |
|---|---|
| Services billed to Medicare | 13,812 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Injection, faricimab-svoa, 0.1 mg (J2777)9,011 services
- Established patient complete exam of visual system (92014)1,523 services
- Imaging of retina (92134)1,367 services
- Injection of drug into eye (67028)522 services
- Injection, aflibercept hd, 1 mg (J0177)344 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure71%
- Diabetes41%
- Arthritis39%
- Chronic kidney disease25%
- Ischemic heart disease22%
Hospitals where Ali A. Zaidi works
Medicare's Facility Affiliation Data lists Ali A. Zaidi at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- California Pacific Medical Center-Davies Campus HospitalSan Francisco, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050008
Practice locations
Addresses where Ali A. Zaidi is enrolled with Medicare (CMS data updated October 2, 2026).
- 1520 Stockton StSan Francisco, CA 94133 (415) 391‑9686
- 2100 Webster St, Suite 214San Francisco, CA 94115 (415) 923‑3007
Group practices
Medicare enrollment lists Ali A. Zaidi as a member of these groups (CMS data updated October 2, 2026).
- North East Medical Services143 clinicians in the group
- Pacific Eye Associates, a Medical Corporation12 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Other clinicians in North East Medical Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417006479 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians