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Internal Medicine

Gavriil Agaon, MD

Works at hospitals in New York, NY · New York

Summary

Dr. Gavriil Agaon, MD is an internal medicine doctor at 9978 65th Rd, Rego Park, NY 11374. Phone: (718) 997-0100. Accepts Medicare assignment. In 2024, Gavriil Agaon had 57 Original Medicare patients and 554 services. NPI 1699858506. 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.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 9978 65th Rd, Rego Park, NY 11374 · Directions
  • Phone: (718) 997‑0100
  • Medicare: Accepts Medicare assignment
  • Hospital: NYU Langone Hospitals
  • Medical school: graduated 1990 (36 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Gavriil Agaon, 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 Gavriil Agaon accept Medicare assignment?
Yes. Medicare's clinician data says Gavriil Agaon 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 Gavriil Agaon see?
In 2024, CMS data shows 57 Original Medicare patients and 554 services for Gavriil Agaon. This counts Original Medicare only and measures volume, not quality.
What is Gavriil Agaon's NPI number?
1699858506. 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 Gavriil Agaon, 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 patients57
Services billed to Medicare554
Different services or procedures20
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)162 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)54 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)53 services
  4. Advance care planning, first 30 minutes (99497)47 services
  5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)45 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%
  • Diabetes49%
  • Arthritis46%
  • Ischemic heart disease44%
  • Anxiety33%

Hospitals where Gavriil Agaon works

Medicare's Facility Affiliation Data lists Gavriil Agaon 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.

  • NYU Langone HospitalsNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330214

Practice locations

Addresses where Gavriil Agaon is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Rego Park

Clinicians with the same Medicare primary specialty in Rego Park, NY — not a recommendation.

All internal medicine doctors in Rego Park →

Clinician information

CredentialMD
Graduation year1990 (36 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1699858506
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