Kathryn L. Huyssoon, MD

Medicare activity in 2024

Official CMS public-use data for Kathryn L. Huyssoon, 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 moderate level of decision making, if using time, 30 minutes or more (99214)207 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)144 services
3. Annual alcohol misuse screening, 5 to 15 minutes (G0442)56 services
4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)14 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 pressure66%
• Arthritis40%
• Depression24%
• Anxiety23%
• Diabetes22%

Hospitals where Kathryn L. Huyssoon works

Medicare's Facility Affiliation Data lists Kathryn L. Huyssoon 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.

• Legacy Good Samaritan Medical CenterPortland, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380017
• Legacy Mount Hood Medical CenterGresham, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380025
• OHSU Hospital and ClinicsPortland, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380009

Practice locations

Addresses where Kathryn L. Huyssoon is enrolled with Medicare (CMS data updated October 2, 2026).

• 24988 SE Stark St, Suite 220Gresham, OR 97030

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Oregon →

Other internal medicine doctors in Gresham

Clinicians with the same Medicare primary specialty in Gresham, OR — not a recommendation.

• Yara Christina H. Badrakhan, DO
• Patrick J. McGowan, MD
• Xi Zheng, MD
• Brittney B. Mensen, DO
• Zhuchen Xu, MD
• Sonia Rajput, MD
• Sunita M. Deshmukh, MD
• Dennis P. Grusenmeyer, MD

All internal medicine doctors in Gresham →

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