Helen Patzanakidis

Medicare activity in 2024

Official CMS public-use data for Helen Patzanakidis, 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)279 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)204 services
3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)128 services
4. Telephone medical discussion with physician, 11-20 minutes (99442)82 services
5. Annual alcohol misuse screening, 5 to 15 minutes (G0442)26 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 pressure70%
• Arthritis52%
• Diabetes26%
• Anxiety20%
• Chronic kidney disease20%

Practice locations

Addresses where Helen Patzanakidis is enrolled with Medicare (CMS data updated October 2, 2026).

• 2250 S Main St, Suite 106Corona, CA 92882 (951) 371‑2703

Group practices

Medicare enrollment lists Helen Patzanakidis as a member of this group (CMS data updated October 2, 2026).

• Citrus Valley Medical Associates Inc14 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Corona

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

• Vivian K. Ngo, MD
• Valentine U. Otuechere, MD
• Mohammad M. Siddiqui, MD
• Fatima Magina, MD
• Hitesh C. Patel, MD
• Ken Walls, DO
• Diem L. Ngo, MD
• Tanya Nanayakkara, MD

All family doctors in Corona →

Other clinicians in Citrus Valley Medical Associates Inc

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

• John G. Agtuca, DO
• Melissa Taylor, DO
• David Pham, MD
• Terry L. Sanderfer, MD
• Peter N. Mattar, MD
• Tanya Nanayakkara, 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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
4. Medicare Care Compare — official Medicare tool to look up clinicians