Quick answers
- Does Chu Pei Feng accept Medicare assignment?
- Medicare's clinician data says Chu Pei Feng may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Chu Pei Feng see?
- In 2024, CMS data shows 53 Original Medicare patients and 492 services for Chu Pei Feng. This counts Original Medicare only and measures volume, not quality.
- What is Chu Pei Feng's NPI number?
- 1922010073. 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 Chu Pei Feng, 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 | 53 |
|---|---|
| Services billed to Medicare | 492 |
| Different services or procedures | 25 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)43 services
- X-ray during radiation therapy (77417)35 services
- Continuing radiation therapy consultation per week (77336)34 services
- Radiation treatment management, 5 treatment sessions (77427)34 services
- Obtaining data needed to develop the optimal radiation treatment, 1 treatment area (77280)13 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%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- High blood pressure66%
- Arthritis53%
- Osteoporosis28%
- Diabetes26%
Practice locations
Addresses where Chu Pei Feng is enrolled with Medicare (CMS data updated October 2, 2026).
- 1100 N Tustin Ave, Suite ASanta Ana, CA 92705 (714) 835‑8520
Group practices
Medicare enrollment lists Chu Pei Feng as a member of this group (CMS data updated October 2, 2026).
- Orange County Radiation Oncology Medical Group2 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Orange County Radiation Oncology Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1922010073 |
| 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
- 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