John S. Rajapakse, MD

Medicare activity in 2024

Official CMS public-use data for John S. Rajapakse, 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 nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)208 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)204 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)157 services
4. Annual depression screening, 5 to 15 minutes (G0444)62 services
5. Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)31 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 cholesterol68%
• Anxiety53%
• Arthritis39%
• Diabetes35%
• Depression32%

Hospitals where John S. Rajapakse works

Medicare's Facility Affiliation Data lists John S. Rajapakse 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.

• JFK University Medical CenterEdison, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310108
• Raritan Bay Medical CenterPerth Amboy, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310039

Practice locations

Addresses where John S. Rajapakse is enrolled with Medicare (CMS data updated October 2, 2026).

• 495 New Brunswick AvePerth Amboy, NJ 08861 (732) 442‑4422

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in New Jersey →

Other internal medicine doctors in Perth Amboy

Clinicians with the same Medicare primary specialty in Perth Amboy, NJ — not a recommendation.

• Jason Selim, DO
• Pankaj Shirolawala, MD
• Gregorio J. Guillen, MD
• Vinod K. Sinha, MD
• John P. Lopez, MD
• Katalin Horvath, MD
• Bhaveshkumar Garsondiya, MD
• Matthew Yotsuya, MD

All internal medicine doctors in Perth Amboy →

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