Hnoukaj A. Lyfoung, MD

Medicare activity in 2024

Official CMS public-use data for Hnoukaj A. Lyfoung, 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. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)94 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)53 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)49 services
4. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)39 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)31 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 cholesterol72%
• High blood pressure69%
• Arthritis52%
• Anxiety28%
• Ischemic heart disease27%
• Depression27%

Hospitals where Hnoukaj A. Lyfoung works

Medicare's Facility Affiliation Data lists Hnoukaj A. Lyfoung 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.

• Petaluma Valley HospitalPetaluma, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 050136
• Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050174

Practice locations

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

• 106 Lynch Creek Way, Suite 9bPetaluma, CA 94954 (707) 763‑1575
• 1162 Montgomery Dr, Suite 300Santa Rosa, CA 95405 (707) 890‑4250

Group practices

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

• Providence Medical Foundation1,466 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in California →

Other general surgeons in Petaluma

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

• Elpidio C. Mariano, MD
• Peter V. Leoni, MD
• Sapoora Manshaii, MD
• Ninad R. Dabadghav, MD

All general surgeons in Petaluma →

Other clinicians in Providence Medical Foundation

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

• Daniel B. Allen, MD
• Dena R. Nasir, MD
• Bradley Borsari, MD
• Tam D. Do, MD
• Sharone E. Perlman, NP
• Surinder S. Moonga, 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