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

Gastroenterology

Nicholas M. Szary, MD

Works at hospitals in Alexandria, VA · Fairfax, VA · Falls Church, VA … · Virginia

Summary

Dr. Nicholas M. Szary, MD is a gastroenterologist at 2501 Parkers Ln, Alexandria, VA 22306. Accepts Medicare assignment. In 2024, Nicholas M. Szary had 463 Original Medicare patients and 1,765 services. NPI 1962505818. 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 M. Szary, 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 M. Szary accept Medicare assignment?
Yes. Medicare's clinician data says Nicholas M. Szary 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 M. Szary see?
In 2024, CMS data shows 463 Original Medicare patients and 1,765 services for Nicholas M. Szary. This counts Original Medicare only and measures volume, not quality.
What is Nicholas M. Szary's NPI number?
1962505818. 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 M. Szary, 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 patients463
Services billed to Medicare1,765
Different services or procedures59
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)253 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)126 services
  3. Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare (43251)120 services
  4. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)118 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)113 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%
  • Arthritis48%
  • Diabetes40%
  • Ischemic heart disease31%
  • Chronic kidney disease29%

Hospitals where Nicholas M. Szary works

Medicare's Facility Affiliation Data lists Nicholas M. Szary 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 M. Szary is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Nicholas M. Szary as a member of this group (CMS data updated October 2, 2026).

  • Inova Health Care Services1,817 clinicians in the group

Specialties

Find other Gastroenterology doctors in Virginia →

Other gastroenterologists in Alexandria

Clinicians with the same Medicare primary specialty in Alexandria, VA — not a recommendation.

All gastroenterologists in Alexandria →

Other clinicians in Inova Health Care Services

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

Clinician information

CredentialMD
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1962505818
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