Huy A. Nguyen, DO

Medicare activity in 2024

Official CMS public-use data for Huy A. Nguyen, 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.

Most frequent services

1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)884 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)671 services
3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)446 services
4. Administration of influenza virus vaccine (G0008)151 services
5. Annual depression screening, 5 to 15 minutes (G0444)142 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 pressure59%
• Arthritis44%
• Diabetes21%
• Anxiety16%
• Osteoporosis16%

Hospitals where Huy A. Nguyen works

Medicare's Facility Affiliation Data lists Huy A. Nguyen 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.

• Oroville HospitalOroville, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050030
• Sierra Nevada Memorial HospitalGrass Valley, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050150

Practice locations

Addresses where Huy A. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

• 11400 Pleasant Valley RdPenn Valley, CA 95946 (530) 432‑7023

Group practices

Medicare enrollment lists Huy A. Nguyen as a member of this group (CMS data updated October 2, 2026).

• Sierra Nevada Primary Care Physicians a Medical Corporation5 clinicians in the group

Specialties

• Family Practiceprimary
• Osteopathic Manipulative Medicinealso

Find other Family Practice doctors in California →

Other family doctors in Penn Valley

Clinicians with the same Medicare primary specialty in Penn Valley, CA — not a recommendation.

• Jon R. Pritchett, MD
• Mara Berezniak, DO
• Andrew G. Burt, MD

All family doctors in Penn Valley →

Other clinicians in Sierra Nevada Primary Care Physicians a Medical Corporation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Mara Berezniak, DO
• Walter G. Speirs, PA
• Linda M. McIntosh
• Andrew G. Burt, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians