Rengaraju Ramasamy, MD

Medicare activity in 2024

Official CMS public-use data for Rengaraju Ramasamy, 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)224 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)212 services
3. Hospital discharge day management, more than 30 minutes (99239)33 services
4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)25 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%
• Diabetes75%
• Chronic kidney disease71%
• Heart failure51%
• Ischemic heart disease43%

Hospitals where Rengaraju Ramasamy works

Medicare's Facility Affiliation Data lists Rengaraju Ramasamy 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 Memorial Hospital AuthorityTamuning, GU · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 650001

Practice locations

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

• 850 Gov Carlos G Camacho RdTamuning, GU 96913 (671) 647‑2552

Group practices

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

• Guam Memorial Hospital131 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Guam →

Other internal medicine doctors in Tamuning

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

• Marylou A. Dulay, MD
• Pichet Iampornpipopchai, MD
• Suwarat Wongjittraporn, MD
• Tien Trinh, MD
• Shih Hao H. Lin, MD
• Syed F. Ahmed, MD
• Jennifer J. Chang, MD
• Golda Sol M. Fernandez, MD

All internal medicine doctors in Tamuning →

Other clinicians in Guam Memorial Hospital

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

• Mary A. Legaspi
• Pichet Iampornpipopchai, MD
• William Fox, MD
• Faraz Ouhadi, MD
• Brinda Rengaraju, MD
• Florencio Lizama, 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