Harry P. Marshall Jr., MD

Medicare activity in 2024

Official CMS public-use data for Harry P. Marshall Jr., 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. Critical care, first 30-74 minutes (99291)65 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%
• Diabetes73%
• Heart failure73%
• Arthritis67%
• Depression64%

Hospitals where Harry P. Marshall Jr. works

Medicare's Facility Affiliation Data lists Harry P. Marshall Jr. 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 Charles Regional Medical CenterLa Plata, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210035

Practice locations

Addresses where Harry P. Marshall Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

• 11116 Medical Campus RdHagerstown, MD 21742 (301) 790‑8000
• 12500 Willowbrook RdCumberland, MD 21502
• 4601 Martin Luther King Jr Ave SWWashington, DC 20032 (202) 373‑5840
• 5 Garrett AveLa Plata, MD 20646 (301) 609‑4474

Group practices

Medicare enrollment lists Harry P. Marshall Jr. as a member of these groups (CMS data updated October 2, 2026).

• UPMC Western Maryland Health Services LLC162 clinicians in the group
• Anacostia Medical Associates24 clinicians in the group

Specialties

• Critical Care (Intensivists)primary

Find other Critical Care (Intensivists) doctors in Maryland →

Other critical care doctors in Hagerstown

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

• Kevin Chung, MD
• Bruce R. Gibson, MD
• Isaac Ikwu, MD
• Trudy Kantra, DO
• Muhammad Rizwan, MD
• Jeanpierre El Khoury, MD
• Robyn D. Anderson, MD
• Prabhav Vasistha, MD

All critical care doctors in Hagerstown →

Other clinicians in UPMC Western Maryland Health Services LLC

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

• Leah Kozlowski, PA
• Katelin Lechliter, CNM
• Julie F. Bielec, MD
• Diana Pryor, NP
• Caryn Amedee, NP
• Roy D. Chisholm, 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