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Diagnostic Radiology

Grant H. Bonavia, MD

Sees patients in Frederick, MD · Ijamsville, MD · Mount Airy, MD … · Maryland

Summary

Dr. Grant H. Bonavia, MD is a radiologist at 1562 Opossumtown Pike, Frederick, MD 21702. Phone: (888) 601-0943. Accepts Medicare assignment. In 2024, Grant H. Bonavia had 4,276 Original Medicare patients and 66,096 services. NPI 1174618409. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Radiologist (Medicare lists Diagnostic Radiology)
  • Address: 1562 Opossumtown Pike, Frederick, MD 21702 · Directions (6 more locations)
  • Phone: (888) 601‑0943
  • Medicare: Accepts Medicare assignment
  • Group practice: Community Radiology Associates Inc
  • Medical school: Uniformed Services Uhs Fe Hebert School Of Med · graduated 2003 (23 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Grant H. Bonavia, 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 Grant H. Bonavia accept Medicare assignment?
Yes. Medicare's clinician data says Grant H. Bonavia 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 Grant H. Bonavia see?
In 2024, CMS data shows 4,276 Original Medicare patients and 66,096 services for Grant H. Bonavia. This counts Original Medicare only and measures volume, not quality.
What is Grant H. Bonavia's NPI number?
1174618409. 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 Grant H. Bonavia, 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 patients4,276
Services billed to Medicare66,096
Different services or procedures161
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Injection, gadoterate meglumine, 0.1 ml (A9575)33,225 services
  2. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)25,647 services
  3. Piflufolastat f-18, diagnostic, 1 millicurie (A9595)910 services
  4. Nuclear medicine study from skull base to mid-thigh with ct scan (78815)461 services
  5. Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries (A9552)436 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%
  • Arthritis56%
  • Diabetes36%
  • Ischemic heart disease29%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)25%

Practice locations

Addresses where Grant H. Bonavia 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 Grant H. Bonavia as a member of this group (CMS data updated October 2, 2026).

  • Community Radiology Associates Inc65 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Maryland →

Other radiologists in Frederick

Clinicians with the same Medicare primary specialty in Frederick, MD — not a recommendation.

All radiologists in Frederick →

Other clinicians in Community Radiology Associates Inc

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

Clinician information

CredentialMD
Medical schoolUniformed Services Uhs Fe Hebert School Of Med
Graduation year2003 (23 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1174618409
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians