Quick answers
- Does Alexander I. Papolos accept Medicare assignment?
- Yes. Medicare's clinician data says Alexander I. Papolos accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Alexander I. Papolos see?
- In 2024, CMS data shows 967 Original Medicare patients and 1,427 services for Alexander I. Papolos. This counts Original Medicare only and measures volume, not quality.
- What is Alexander I. Papolos's NPI number?
- 1114292455. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Alexander I. Papolos, 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.
| Original Medicare patients | 967 |
|---|---|
| Services billed to Medicare | 1,427 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)644 services
- Critical care, first 30-74 minutes (99291)315 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)239 services
- Ultrasound of heart, follow-up (93308)40 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)34 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%
- Ischemic heart disease66%
- Heart failure62%
- Diabetes55%
- Chronic kidney disease54%
Hospitals where Alexander I. Papolos works
Medicare's Facility Affiliation Data lists Alexander I. Papolos 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.
- Frederick Health HospitalFrederick, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210005
- MedStar Montgomery Medical CenterOlney, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210018
- MedStar Southern Maryland Hospital CenterClinton, MD · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 210062
- MedStar Washington Hospital CenterWashington, DC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 090011
- University of MD Charles Regional Medical CenterLa Plata, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210035
Practice locations
Addresses where Alexander I. Papolos is enrolled with Medicare (CMS data updated October 2, 2026).
- 110 Irving St NWWashington, DC 20010 (202) 877‑7000
Group practices
Medicare enrollment lists Alexander I. Papolos as a member of these groups (CMS data updated October 2, 2026).
- MedStar Medical Group II LLC3,767 clinicians in the group
- MedStar Heart Institute LLC301 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in District of Columbia →
Other cardiologists in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Other clinicians in MedStar Medical Group II LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1114292455 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians