Quick answers
- Does Huy Q. Phung accept Medicare assignment?
- Yes. Medicare's clinician data says Huy Q. Phung 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 Huy Q. Phung see?
- In 2024, CMS data shows 179 Original Medicare patients and 460 services for Huy Q. Phung. This counts Original Medicare only and measures volume, not quality.
- What is Huy Q. Phung's NPI number?
- 1356443485. 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 Huy Q. Phung, 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 | 179 |
|---|---|
| Services billed to Medicare | 460 |
| Different services or procedures | 7 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Blood glucose (sugar) test performed by hand-held instrument (82962)222 services
- Hemoglobin a1c level, by device for home use (83037)148 services
- Urinalysis, manual test (81002)48 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).
- Diabetes75%
- High blood pressure74%
- High cholesterol72%
- Arthritis32%
- Chronic kidney disease21%
- Ischemic heart disease20%
Hospitals where Huy Q. Phung works
Medicare's Facility Affiliation Data lists Huy Q. Phung 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.
- Adventist Health and RideoutMarysville, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050133
- Oroville HospitalOroville, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050030
Practice locations
Addresses where Huy Q. Phung is enrolled with Medicare (CMS data updated October 2, 2026).
- 4941 Olivehurst AveOlivehurst, CA 95961 (530) 743‑4611
Group practices
Medicare enrollment lists Huy Q. Phung as a member of this group (CMS data updated October 2, 2026).
- Ampla Health101 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Ampla Health
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356443485 |
| 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