Zackary Berger, MD

Medicare activity in 2024

Official CMS public-use data for Zackary Berger, 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 moderate level of decision making, if using time, 30 minutes or more (99214)119 services
2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)48 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)21 services
4. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)15 services
5. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)12 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 pressure70%
• Arthritis48%
• High cholesterol47%
• Ischemic heart disease33%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)31%
• Anxiety30%

Hospitals where Zackary Berger works

Medicare's Facility Affiliation Data lists Zackary Berger 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.

• Johns Hopkins Bayview Medical CenterBaltimore, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210029
• The Johns Hopkins HospitalBaltimore, MD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 210009

Practice locations

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

• 5601 Lloch Raven BlvdBaltimore, MD 21239 (443) 444‑4714
• 601 N Caroline StBaltimore, MD 21287 (410) 955‑5080
• 6201 Greenleigh AveMiddle River, MD 21220

Group practices

Medicare enrollment lists Zackary Berger as a member of these groups (CMS data updated October 2, 2026).

• Johns Hopkins University2,909 clinicians in the group
• Johns Hopkins University713 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Maryland →

Other internal medicine doctors in Baltimore

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

• Mary E. Zulty, DO
• Andrew R. Delapenha, MD
• Wardah Athar, MD
• Sujay Pathak, MD
• John A. Woller Iii, MD
• Allen B. Kachalia, MD
• Sara Yacyshyn, MD
• Dana A. Sloane, MD

All internal medicine doctors in Baltimore →

Other clinicians in Johns Hopkins University

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

• Daisha Wilson, CNA
• Serena M. Bagnasco, MD
• Ravin Garg, MD
• Alexis Thompson, MD
• Todd M. Kolb, MD
• Emily Dunn, 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