Charles J. Koller, MD

Medicare activity in 2024

Official CMS public-use data for Charles J. Koller, 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. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)90 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)88 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)69 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)68 services
5. Repair of groin hernia using an endoscope (49650)26 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%
• Ischemic heart disease44%
• Diabetes35%
• Chronic kidney disease34%

Hospitals where Charles J. Koller works

Medicare's Facility Affiliation Data lists Charles J. Koller 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.

• AdventHealth OrlandoOrlando, FL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 100007

Practice locations

Addresses where Charles J. Koller is enrolled with Medicare (CMS data updated October 2, 2026).

• 2055 Glenwood DrWinter Park, FL 32792 (407) 645‑3555

Group practices

Medicare enrollment lists Charles J. Koller as a member of this group (CMS data updated October 2, 2026).

• Charles J Koller MD PA2 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in Florida →

Other general surgeons in Winter Park

Clinicians with the same Medicare primary specialty in Winter Park, FL — not a recommendation.

• Melissa Bagloo, MD
• John M. Jeffries, MD
• Roberto G. Posada, MD
• Thomas Mahan, MD
• Enrique E. Vega, MD
• Kamy R. Kemp, MD
• Timothy C. Childers, MD
• Jonah White, MD

All general surgeons in Winter Park →

Other clinicians in Charles J Koller MD PA

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

• Coutney L. Thompson, PA

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