George Kunnackal John, MD

Medicare activity in 2024

Official CMS public-use data for George Kunnackal John, 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. Biopsy of large bowel using a flexible endoscope (45380)256 services
2. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)222 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)196 services
4. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)160 services
5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)61 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%
• Arthritis46%
• Diabetes35%
• Chronic kidney disease30%
• Depression28%

Hospitals where George Kunnackal John works

Medicare's Facility Affiliation Data lists George Kunnackal John 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 Maryland Medical CenterBaltimore, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210002
• University of MD Medical Center Midtown CampusBaltimore, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210038

Practice locations

Addresses where George Kunnackal John is enrolled with Medicare (CMS data updated October 2, 2026).

• 22 S Green StBaltimore, MD 21201 (410) 328‑8040
• 827 Linden AveBaltimore, MD 21201 (443) 552‑2539

Group practices

Medicare enrollment lists George Kunnackal John as a member of this group (CMS data updated October 2, 2026).

• University of Maryland Physicians PA404 clinicians in the group

Specialties

• Internal Medicineprimary
• Gastroenterologyalso

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.

• Navara Malayaman, MD
• Naveen S. Silva, MD
• Jenna Canzoniero, MD
• Ashwini Niranjan Azadi, MD
• Jeffrey A. Schneider, MD
• Fatima Syed, MD
• Tara Hebert, MD
• Joshua B. Macht, MD

All internal medicine doctors in Baltimore →

Other clinicians in University of Maryland Physicians PA

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

• Emerson M. Wickwire
• Ann K. Eno, PA
• Zachary R. Wynne, MD
• Ekta Gupta, MD
• Matthew R. Weir, MD
• Jagman S. Chahal, 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