Rachel Mallalieu, DO

Medicare activity in 2024

Official CMS public-use data for Rachel Mallalieu, 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. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)222 services
2. Removal of skin and tissue, 20.0 sq cm or less (11042)158 services
3. Removal of skin and tissue, each additional 20.0 sq cm or less (11045)123 services
4. Management of oxygen chamber therapy (99183)66 services
5. Emergency department visit with high level of medical decision making (99285)48 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%
• Arthritis59%
• Chronic kidney disease54%
• Diabetes52%
• Ischemic heart disease42%

Hospitals where Rachel Mallalieu works

Medicare's Facility Affiliation Data lists Rachel Mallalieu 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.

• University of MD Baltimore Washington Medical CenterGlen Burnie, MD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 210043

Practice locations

Addresses where Rachel Mallalieu is enrolled with Medicare (CMS data updated October 2, 2026).

• 301 Hospital DrGlen Burnie, MD 21061 (410) 787‑4565

Group practices

Medicare enrollment lists Rachel Mallalieu as a member of this group (CMS data updated October 2, 2026).

• Baltimore Washington Emergency Physicians, Inc.31 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Maryland →

Other emergency medicine doctors in Glen Burnie

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

• Jonathan C. Wendell, MD
• Sairam Balasubramanian, MD
• Maryann E. Amirshahi, MD
• Daniel Dabbah, MD
• Bonnie J. Kerr, MD
• Alfred G. Jump, MD
• Manna Varghese, MD
• Betsy P. Schrader, MD

All emergency medicine doctors in Glen Burnie →

Other clinicians in Baltimore Washington Emergency Physicians, Inc.

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

• Jonathan C. Wendell, MD
• Sairam Balasubramanian, MD
• Colleen E. Holley, MD
• Bonnie J. Kerr, MD
• Claire M. Roycroft, MD
• Christina L. Tupe, 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