Arthi Thirumalai, MD

Medicare activity in 2024

Official CMS public-use data for Arthi Thirumalai, 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)100 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)76 services
3. Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)45 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%
• Diabetes66%
• Chronic kidney disease41%
• Arthritis36%
• Ischemic heart disease36%

Hospitals where Arthi Thirumalai works

Medicare's Facility Affiliation Data lists Arthi Thirumalai 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.

• Harborview Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500064
• University of Washington Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 500008

Practice locations

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

• 4245 Roosevelt Way NESeattle, WA 98105 (206) 598‑7954

Group practices

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

• The Association of University Physicians3,535 clinicians in the group

Specialties

• Endocrinologyprimary
• Internal Medicinealso

Find other Endocrinology doctors in Washington →

Other endocrinologists in Seattle

Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.

• Mara Y. Roth, MD
• Savitha Subramanian, MD
• Asma Hasan, MD
• Mayumi Endo, MD
• Joshua P. Thaler, MD
• Nancy L. Mora Becerra, MD
• Allison J. Pollock, MD
• Lori A. Cooper, MD

All endocrinologists in Seattle →

Other clinicians in The Association of University Physicians

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

• Susan Zdon, NP
• Mastafa Springston, MD
• Sarah L. Livesay, NP
• Alexandria Z. Lahdya, PA
• Mekenna J. Mossman, PA
• Timothy D. Butterworth, CNA

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