Dilan B. Samarawickrama, MD

Medicare activity in 2024

Official CMS public-use data for Dilan B. Samarawickrama, 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. Ct scan head or brain without contrast (70450)568 services
2. Ct scan of abdomen and pelvis with contrast (74177)318 services
3. Ct scan of upper spine without contrast (72125)199 services
4. Ct scan of abdomen and pelvis without contrast (74176)181 services
5. Ct scan of blood vessels of chest with contrast (71275)153 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%
• Arthritis53%
• Ischemic heart disease50%
• Diabetes42%
• Anxiety41%

Hospitals where Dilan B. Samarawickrama works

Medicare's Facility Affiliation Data lists Dilan B. Samarawickrama 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.

• CHI St. Vincent Hospital Hot SpringsHot Springs, AR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 040026
• Chi-St Vincent InfirmaryLittle Rock, AR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 040007
• Conway Regional Medical Center, IncConway, AR · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 040029
• Northwest Medical Center-SpringdaleSpringdale, AR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 040022
• South Arkansas Regional Hospital LLCEl Dorado, AR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 040088

Practice locations

Addresses where Dilan B. Samarawickrama is enrolled with Medicare (CMS data updated October 2, 2026).

• 308 16th St, Apt 8Huntington Beach, CA 92648 (501) 224‑1690

Group practices

Medicare enrollment lists Dilan B. Samarawickrama as a member of these groups (CMS data updated October 2, 2026).

• CHI St Vincent Medical Group Hot Springs185 clinicians in the group
• Radiology Associates PA62 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in California →

Other radiologists in Huntington Beach

Clinicians with the same Medicare primary specialty in Huntington Beach, CA — not a recommendation.

• Reza Shahbaz, MD
• Roger McClellan, MD
• Thomas H. Lee, MD
• Layla G. Shirkhoda, MD
• Charles C. Hoo, MD
• Siamak Dardashti, MD
• Jorge A. Mendoza, MD

All radiologists in Huntington Beach →

Other clinicians in CHI St Vincent Medical Group Hot Springs

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

• Pamela Ross, NP
• Shauna L. Lucas, MD
• Kelsey A. Hinrichs, NP
• Kara J. Hill, PA
• Nazneen Tata, MD
• John Mark Pabona, 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