Quick answers
- Does Chi Hua M. Fang accept Medicare assignment?
- Yes. Medicare's clinician data says Chi Hua M. Fang 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 Chi Hua M. Fang see?
- In 2024, CMS data shows 443 Original Medicare patients and 1,426 services for Chi Hua M. Fang. This counts Original Medicare only and measures volume, not quality.
- What is Chi Hua M. Fang's NPI number?
- 1568523751. 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 Chi Hua M. Fang, 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 | 443 |
|---|---|
| Services billed to Medicare | 1,426 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Established patient complete exam of visual system (92014)418 services
- Established patient problem focused exam of visual system (92012)401 services
- Imaging of retina (92134)171 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)85 services
- Imaging of optic nerve (92133)52 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 pressure68%
- Arthritis37%
- Osteoporosis30%
- Chronic kidney disease24%
- Diabetes21%
Hospitals where Chi Hua M. Fang works
Medicare's Facility Affiliation Data lists Chi Hua M. Fang 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.
- John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050496
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050180
Practice locations
Addresses where Chi Hua M. Fang is enrolled with Medicare (CMS data updated October 2, 2026).
- 1220 Rossmoor PkwyWalnut Creek, CA 94595 (925) 988‑7561
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Walnut Creek
Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568523751 |
| 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