Gregory Gagnon
Gregory Gagnon is a Radiation Oncology Radiology specialist based in Frederick, MD with over 40 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Gregory Gagnon practices as part of a group radiation oncology radiology specialist practice in Frederick, MD. A University of Virginia School of Medicine graduate since 1986, he brings 40+ years of experience. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and cancer.
Older · 997dNPPES updated 2023-08-30 · verify NPI on CMS · Verify license at Maryland Board of Physicians
Contact & Location
Practice Location
1562 Opossumtown Pike, Frederick, MD 21702-4337
How Does This Doctor Compare?
Opioid Rx
↓ Lower = better8.84%
Maryland avg: 4.4 · US avg: 5.1
⚠ Lower than most doctors nationally(+3.7 pts)
8.84% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Medicare Patients
476
Unique beneficiaries
Standard volumePrescription Recipients
76
Patients prescribed
Prescriptions Written
181
Total claims
Total Medicare drug cost: $2k
Percentile rankings compared against 2,391 reporting peers in Maryland.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Cancer.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
Diseases involving abnormal cell growth with potential to spread to other body parts
US avg: 20.8%↑ More patients than average (+54%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-3%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+7%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-2%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-10%) — less common here
Chronic Obstructive Pulmonary Disease — a group of lung diseases that block airflow
US avg: 20.4%↑ More patients than average (+3%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$59 received from industry
3 transactions reported in 2024 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Gregory Gagnon's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1986
University of Virginia School of Medicine
Board certified · Aug 29, 2023
Self-reported via NPPES
40 years in practice
Senior practitioner
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
Taxonomy: 2085R0001X
Education & Training
University of Virginia School of Medicine (Class of 1986)
Mailing address
111 Loder St, Hornell, NY 14843-1950
Differs from practice location
Virtual Radiation Oncology Care With Gregory Gagnon
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Gregory Gagnon for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to Frederick required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Gregory Gagnon
NPI records show Dr. Gagnon as active with telehealth listed in Frederick, MD. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (240) 566-4500.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Gregory Gagnon
Practice Location
1562 Opossumtown Pike, Frederick, MD 21702-4337
Mailing Address
111 Loder St, Hornell, NY 14843-1950
This is a provider directory. Contact the office directly to schedule appointments.
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