Mary G. Cormier, MD

Medicare activity in 2024

Official CMS public-use data for Mary G. Cormier, 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. X-ray of chest, 1 view (71045)1,065 services
2. X-ray of knee, 1-2 views (73560)301 services
3. X-ray of chest, 2 views (71046)280 services
4. X-ray of hip, 2-3 views (73502)262 services
5. X-ray of lower and sacral spine, 2-3 views (72100)250 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%
• Arthritis72%
• Diabetes37%
• Ischemic heart disease37%
• Chronic kidney disease31%

Hospitals where Mary G. Cormier works

Medicare's Facility Affiliation Data lists Mary G. Cormier 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 Saint Mary's HospitalLeonardtown, MD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 210028

Practice locations

Addresses where Mary G. Cormier is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.

• 1145 19th St NW, 311 Mmg at 19th Street NWWashington, DC 20036 (202) 429‑2401
• 12 Medstar BlvdBel Air, MD 21015 (443) 625‑5430
• 12158 Central Ave, Suite 100Mitchellville, MD 20721 (301) 430‑2750
• 18101 Prince Philip DrOlney, MD 20832 (301) 215‑9420
• 18101 Prince Philip Dr, Suite 6100Olney, MD 20832 (301) 260‑3301

Group practices

Medicare enrollment lists Mary G. Cormier as a member of these groups (CMS data updated October 2, 2026).

• MedStar Medical Group II LLC3,767 clinicians in the group
• MedStar Medical Group - Southern Maryland LLC245 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.

• Filip Banovac, MD
• Kathleen A. Brindle, MD
• John Cardella, MD
• Geoffrey M. Rutledge, MD
• Shawn Sarin, MD
• Andres Eraso, MD
• Irwin M. Feuerstein, MD
• Sean Owens, 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.

• Caylynn Yao, MD
• Khoi Le, DO
• Mark Peeler, MD
• Jacquelyn M. Smith, PA
• Sana S. Shah, MD
• Saad Mahmood, MD

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