Jaclynn L. Powell, MD

Medicare activity in 2024

Official CMS public-use data for Jaclynn L. Powell, 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.

Most frequent services

1. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)8,785 services
2. X-ray of chest, 1 view (71045)195 services
3. X-ray of chest, 2 views (71046)190 services
4. Screening 3d breast mammography (77063)155 services
5. Screening mammography (77067)155 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 cholesterol75%
• High blood pressure73%
• Arthritis52%
• Diabetes30%
• Ischemic heart disease28%
• Chronic kidney disease26%

Hospitals where Jaclynn L. Powell works

Medicare's Facility Affiliation Data lists Jaclynn L. Powell 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.

• MedStar Georgetown University HospitalWashington, DC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 090004
• MedStar Montgomery Medical CenterOlney, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210018

Practice locations

Addresses where Jaclynn L. Powell is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

• 110 Irving St NWWashington, DC 20010 (202) 877‑7000
• 1120 20th St NWWashington, DC 20036 (202) 748‑8830
• 12 Medstar BlvdBel Air, MD 21015 (443) 625‑5430
• 200 Marion DrPoland, OH 44514 (703) 558‑1400
• 2118 Greenspring Dr, Suite 100Timonium, MD 21093 (443) 470‑1070

Group practices

Medicare enrollment lists Jaclynn L. Powell as a member of these groups (CMS data updated October 2, 2026).

• MedStar Medical Group II LLC3,767 clinicians in the group
• Physician Imaging of Washington Hospital Center LLC104 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in District of Columbia →

Other radiologists in Washington

Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.

• Qi Wei, DO
• Rodrigo De Castro Luna, MD
• Michael Schwartz, MD
• Mitchell Pawlak, MD
• Danielle O. Demulder, MD
• Michael Ching, MD
• Mohammad Naseem, MD
• April Matiasek, MD

All radiologists in Washington →

Other clinicians in MedStar Medical Group II LLC

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

• Wakako Horiuchi, MD
• Gaurav Bandi, MD
• Kamilah D. Ray-Boyd, PA
• Jason Hammond, MD
• Previtha S. Mathews, CNA
• Heather Benedetto, NP

Clinician information

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