Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Cardiovascular Disease (Cardiology)

Nicholas A. Paivanas, MD

Works at hospitals in Annapolis, MD · Washington, DC · Easton, MD · Maryland, District of Columbia

Summary

Dr. Nicholas A. Paivanas, MD is a cardiologist at 1145 19th St NW, 311 Mmg at 19th Street NW, Washington, DC 20036. Phone: (202) 429-2401. Accepts Medicare assignment. In 2024, Nicholas A. Paivanas had 1,910 Original Medicare patients and 5,348 services. NPI 1962727354. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Nicholas A. Paivanas, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Nicholas A. Paivanas accept Medicare assignment?
Yes. Medicare's clinician data says Nicholas A. Paivanas 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 Nicholas A. Paivanas see?
In 2024, CMS data shows 1,910 Original Medicare patients and 5,348 services for Nicholas A. Paivanas. This counts Original Medicare only and measures volume, not quality.
What is Nicholas A. Paivanas's NPI number?
1962727354. 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 Nicholas A. Paivanas, 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 patients1,910
Services billed to Medicare5,348
Different services or procedures43
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)1,370 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,295 services
  3. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)566 services
  4. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)523 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)495 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%
  • Arthritis55%
  • Ischemic heart disease46%
  • Atrial fibrillation37%
  • Diabetes32%

Hospitals where Nicholas A. Paivanas works

Medicare's Facility Affiliation Data lists Nicholas A. Paivanas 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.

Practice locations

Addresses where Nicholas A. Paivanas is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Nicholas A. Paivanas 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
  • Capitol Cardiologic, LLP16 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.

All cardiologists in Washington →

Other clinicians in MedStar Medical Group II LLC

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

Clinician information

CredentialMD
Medical schoolGeorgetown University School Of Medicine
Graduation year2010 (16 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1962727354
CorrectionsReport 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

  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