Sean Tamir, MD

Medicare activity in 2024

Official CMS public-use data for Sean Tamir, 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. X-ray of chest, 1 view (71045)459 services
2. Mri scan of lower spinal canal without contrast (72148)306 services
3. Ct scan head or brain without contrast (70450)259 services
4. Mri scan of leg joint without contrast (73721)211 services
5. Mri scan of brain without contrast (70551)206 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%
• Arthritis69%
• Ischemic heart disease49%
• Chronic kidney disease37%
• Anxiety36%

Hospitals where Sean Tamir works

Medicare's Facility Affiliation Data lists Sean Tamir 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.

• Guam Regional Medical CityDededo, GU · Acute Care Hospital · Emergency services: listed by Medicare · CCN 650003

Practice locations

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

• 133 Route 3Dededo, GU 96929 (671) 645‑5500
• 633 Gov Carlos Camacho Rd, Suite 210Tamuning, GU 96913 (671) 649‑1001
• 633 Gov Carlos Camacho Rd, Suite 218Tamuning, GU 96913 (671) 649‑9227

Group practices

Medicare enrollment lists Sean Tamir as a member of these groups (CMS data updated October 2, 2026).

• Guam Healthcare Development Incorporated207 clinicians in the group
• Guam X-Ray30 clinicians in the group
• Guam Medical Imaging Center LLC6 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in Guam →

Other radiologists in Dededo

Clinicians with the same Medicare primary specialty in Dededo, GU — not a recommendation.

• Ashish Khandelwal, MD
• Andrew J. McDonnell, MD
• Unknown Mallikarjunappa, MD
• Emmanuel A. Omoba, MD
• Sonita Tem, MD
• Robert C. Anton, MD
• Gregory B. Snyder, MD
• Le Yu Chiu, MD

All radiologists in Dededo →

Other clinicians in Guam Healthcare Development Incorporated

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

• Peter Lombard, MD
• May Nguyen, MD
• Coleen M. Haynes, MD
• Michael W. Cruz, MD
• Joleen M. Aguon, MD
• Christian A. Eusebio, 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