Quick answers
- Does Feng Xiao accept Medicare assignment?
- Yes. Medicare's clinician data says Feng Xiao 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 Feng Xiao see?
- In 2024, CMS data shows 97 Original Medicare patients and 214 services for Feng Xiao. This counts Original Medicare only and measures volume, not quality.
- What is Feng Xiao's NPI number?
- 1649800913. 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 Feng Xiao, 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 | 97 |
|---|---|
| Services billed to Medicare | 214 |
| Different services or procedures | 41 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)36 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)25 services
- Admn sarscov2 vacc 1 dose (90480)14 services
- Sarscov2 vac 50 mcg/0.5ml im (91322)14 services
- Administration of influenza virus vaccine (G0008)12 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 cholesterol74%
- High blood pressure59%
- Arthritis37%
- Diabetes21%
- Anxiety21%
- Osteoporosis21%
Practice locations
Addresses where Feng Xiao is enrolled with Medicare (CMS data updated October 2, 2026).
- 1711 W Katella AveAnaheim, CA 92804 (714) 337‑9393
- 25272 Marguerite PkwyMission Viejo, CA 92692 (866) 389‑2727
- 27522 Antonio Pkwy, Suite P3Ladera Ranch, CA 92694 (949) 207‑3786
- 29997 Canyon Hills Rd, Suite 1604Lake Elsinore, CA 92532 (951) 409‑9966
Group practices
Medicare enrollment lists Feng Xiao as a member of these groups (CMS data updated October 2, 2026).
- Emergency Physicians Urgent Care Inc140 clinicians in the group
- Minuteclinic Diagnostic Medical Group of Orange County Inc29 clinicians in the group
- Sun Medical Group Inc18 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Anaheim
Clinicians with the same Medicare primary specialty in Anaheim, CA — not a recommendation.
Other clinicians in Emergency Physicians Urgent Care Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649800913 |
| 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