Oshana Alahakoon, MD

Medicare activity in 2024

Official CMS public-use data for Oshana Alahakoon, 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 moderate levelof medical decision making, if using time, at least 35 minutes (99232)206 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)143 services
3. Hospital discharge day management, more than 30 minutes (99239)99 services
4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)35 services
5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)15 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%
• Arthritis62%
• Ischemic heart disease47%
• Chronic kidney disease47%
• Heart failure47%

Hospitals where Oshana Alahakoon works

Medicare's Facility Affiliation Data lists Oshana Alahakoon 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.

• California Hospital Medical Center LALos Angeles, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050149

Practice locations

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

• 1401 S Grand AveLos Angeles, CA 90015 (213) 748‑2411

Group practices

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

• Ca Hospital Hospitalist Medical Group Inc11 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Los Angeles

Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.

• James R. Korb, MD
• Sameer K. Kulkarni, MD
• Martha A. Meza, MD
• Andrew W. Hong, MD
• Evelyn A. Curls, MD
• John P. Martin, MD
• Michael F. Ayoub, MD
• Sneha R. Sharma, MD

All internal medicine doctors in Los Angeles →

Other clinicians in Ca Hospital Hospitalist Medical Group Inc

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

• Pranay Parikh, MD
• Fred Javdan, MD
• Jigar S. Kadakia, 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