Katalin J. Terdik, DO

Medicare activity in 2024

Official CMS public-use data for Katalin J. Terdik, 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. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)464 services
2. Hospital discharge day management, more than 30 minutes (99239)120 services
3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)61 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)46 services
5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)41 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 blood pressure75%
• High cholesterol75%
• Heart failure53%
• Chronic kidney disease52%
• Diabetes48%
• Arthritis43%

Hospitals where Katalin J. Terdik works

Medicare's Facility Affiliation Data lists Katalin J. Terdik 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.

• Kona Community HospitalKealakekua, HI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 120019
• Wilcox Memorial HospitalLihue, HI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 120014

Practice locations

Addresses where Katalin J. Terdik is enrolled with Medicare (CMS data updated October 2, 2026).

• 3-3420 Kuhio Hwy, Suite BLihue, HI 96766 (808) 245‑1500
• 79 -1019 Haukapila StKealakekua, HI 96750 (808) 322‑9311

Group practices

Medicare enrollment lists Katalin J. Terdik as a member of these groups (CMS data updated October 2, 2026).

• Kauai Medical Clinic147 clinicians in the group
• Sound Physicians of Hawaii Inc18 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Hawaii →

Other internal medicine doctors in Lihue

Clinicians with the same Medicare primary specialty in Lihue, HI — not a recommendation.

• Thomas Sawyer, MD
• Summer Douban, MD
• Luke C. Fornari, MD
• Katharine A. Lasley, DO
• Heidi K. Hillesland, MD
• Anne E. Dempsey, MD
• Elbert A. Fasnacht Ii, MD
• Lisa S. Splittstoesser, MD

All internal medicine doctors in Lihue →

Other clinicians in Kauai Medical Clinic

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

• Amanda K. Tolen, AU
• Allen C. Johnson, MD
• Nalani H. Hunsaker, PA
• Nicholas M. Leonard, MD
• Thomas Gerald, MD
• Brandon J. Miller, DO

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