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Radiation Oncology

Robert L. Hong, MD

Works at hospitals in Falls Church, VA · Reston, VA · Arlington, VA · Virginia

Summary

Dr. Robert L. Hong, MD is a radiation oncologist at 1701 N George Mason Dr, Arlington, VA 22205. Phone: (703) 558-6284. Accepts Medicare assignment. In 2024, Robert L. Hong had 288 Original Medicare patients and 2,807 services. NPI 1952572604. 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: Radiation oncologist (Medicare lists Radiation Oncology)
  • Address: 1701 N George Mason Dr, Arlington, VA 22205 · Directions (1 more location)
  • Phone: (703) 558‑6284
  • Medicare: Accepts Medicare assignment
  • Hospitals: Inova Fairfax Hospital, Reston Hospital Center, Virginia Hospital Center
  • Group practice: Arlington Radiation Oncology PLLC
  • Medical school: Medical College Of Georgia School Of Medicine · graduated 2003 (23 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Robert L. Hong, 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 Robert L. Hong accept Medicare assignment?
Yes. Medicare's clinician data says Robert L. Hong 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 Robert L. Hong see?
In 2024, CMS data shows 288 Original Medicare patients and 2,807 services for Robert L. Hong. This counts Original Medicare only and measures volume, not quality.
What is Robert L. Hong's NPI number?
1952572604. 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 Robert L. Hong, 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 patients288
Services billed to Medicare2,807
Different services or procedures32
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Calculation of radiation therapy dose (77300)492 services
  2. Design and construction of complex radiation treatment device (77334)433 services
  3. Ct guidance for insertion of radiation therapy fields (77014)237 services
  4. Obtaining data needed to develop the optimal radiation treatment, 1 treatment area (77280)223 services
  5. Radiation treatment management, 5 treatment sessions (77427)126 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%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • High cholesterol74%
  • Arthritis49%
  • Ischemic heart disease33%
  • Diabetes23%

Hospitals where Robert L. Hong works

Medicare's Facility Affiliation Data lists Robert L. Hong 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.

  • Inova Fairfax HospitalFalls Church, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490063
  • Reston Hospital CenterReston, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 490107
  • Virginia Hospital CenterArlington, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490050

Practice locations

Addresses where Robert L. Hong is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Robert L. Hong as a member of this group (CMS data updated October 2, 2026).

  • Arlington Radiation Oncology PLLC4 clinicians in the group

Specialties

Find other Radiation Oncology doctors in Virginia →

Other radiation oncologists in Arlington

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

All radiation oncologists in Arlington →

Other clinicians in Arlington Radiation Oncology PLLC

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

Clinician information

CredentialMD
Medical schoolMedical College Of Georgia School Of Medicine
Graduation year2003 (23 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1952572604
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