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Cardiovascular Disease (Cardiology)

Christian Koelbl, MD

Works at hospitals in Key West, FL · Miami Beach, FL · Florida

Summary

Dr. Christian Koelbl, MD is a cardiologist at 4300 Alton Rd, Suite 2070, Miami Beach, FL 33140. Phone: (305) 674-2690. Accepts Medicare assignment. In 2024, Christian Koelbl had 490 Original Medicare patients and 1,358 services. NPI 1245460526. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Christian Koelbl, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Christian Koelbl accept Medicare assignment?
Yes. Medicare's clinician data says Christian Koelbl accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Christian Koelbl see?
In 2024, CMS data shows 490 Original Medicare patients and 1,358 services for Christian Koelbl. This counts Original Medicare only and measures volume, not quality.
What is Christian Koelbl's NPI number?
1245460526. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Christian Koelbl, 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.

Original Medicare patients490
Services billed to Medicare1,358
Different services or procedures52
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)233 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)157 services
  3. Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)137 services
  4. Technetium tc-99m tetrofosmin, diagnostic, per study dose (A9502)110 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)100 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%
  • Ischemic heart disease72%
  • Arthritis50%
  • Heart failure44%
  • Atrial fibrillation40%

Hospitals where Christian Koelbl works

Medicare's Facility Affiliation Data lists Christian Koelbl 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.

Practice locations

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

Group practices

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

  • Mount Sinai Medical Center Cardiology LLC41 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Florida →

Other cardiologists in Miami Beach

Clinicians with the same Medicare primary specialty in Miami Beach, FL — not a recommendation.

All cardiologists in Miami Beach →

Other clinicians in Mount Sinai Medical Center Cardiology LLC

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

Clinician information

CredentialMD
Graduation year2007 (19 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1245460526
CorrectionsReport an error or suggest an update →

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