Aga Khan P. De Castro, MD

Medicare activity in 2024

Official CMS public-use data for Aga Khan P. De Castro, 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. Emergency department visit with high level of medical decision making (99285)270 services
2. Emergency department visit with moderate level of medical decision making (99284)34 services
3. Critical care, first 30-74 minutes (99291)31 services
4. Hospital discharge day management, 30 minutes or less (99238)17 services
5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)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%
• Arthritis49%
• Anxiety48%
• Ischemic heart disease46%
• Chronic kidney disease41%

Hospitals where Aga Khan P. De Castro works

Medicare's Facility Affiliation Data lists Aga Khan P. De Castro 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.

• Hartford HospitalHartford, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070025

Practice locations

Addresses where Aga Khan P. De Castro is enrolled with Medicare (CMS data updated October 2, 2026).

• 80 Seymour StHartford, CT 06102

Group practices

Medicare enrollment lists Aga Khan P. De Castro as a member of this group (CMS data updated October 2, 2026).

• Hartford Hospital1,044 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Connecticut →

Other emergency medicine doctors in Hartford

Clinicians with the same Medicare primary specialty in Hartford, CT — not a recommendation.

• Colin J. Huguenel, MD
• Lauri D. Bolton, MD
• Oswald Reid, MD
• Thomas A. Nowicki, MD
• Kelsey N. Boch, MD
• Johanna Lee, MD
• Emily M. Mensel, MD
• Jennifer A. Martin, MD

All emergency medicine doctors in Hartford →

Other clinicians in Hartford Hospital

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

• Margaret H. Einstein, MD
• Krista A. Hull, PA
• Tessa R. Konczylo
• Sandra M. Castro
• Helen E. Bradshaw, MD
• Jessica M. Laprade

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