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Cardiovascular Disease (Cardiology)

George K. Koromia, MD

Works at hospitals in Bellevue, OH · Cleveland, OH · Sandusky, OH … · Ohio

Summary

Dr. George K. Koromia, MD is a cardiologist at 1111 Hayes Ave, Sandusky, OH 44870. Phone: (419) 557-7400. Accepts Medicare assignment. In 2024, George K. Koromia had 837 Original Medicare patients and 1,596 services. NPI 1952780975. 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 George K. Koromia, 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 George K. Koromia accept Medicare assignment?
Yes. Medicare's clinician data says George K. Koromia 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 George K. Koromia see?
In 2024, CMS data shows 837 Original Medicare patients and 1,596 services for George K. Koromia. This counts Original Medicare only and measures volume, not quality.
What is George K. Koromia's NPI number?
1952780975. 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 George K. Koromia, 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 patients837
Services billed to Medicare1,596
Different services or procedures36
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)710 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)186 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)161 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)113 services
  5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)90 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%
  • Arthritis60%
  • Ischemic heart disease39%
  • Diabetes38%
  • Atrial fibrillation36%

Hospitals where George K. Koromia works

Medicare's Facility Affiliation Data lists George K. Koromia 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.

  • Bellevue HospitalBellevue, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 360107
  • Cleveland ClinicCleveland, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360180
  • Firelands Regional Medical CenterSandusky, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360025
  • Fisher-Titus HospitalNorwalk, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360065
  • Magruder HospitalPort Clinton, OH · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 361314

Practice locations

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

Group practices

Medicare enrollment lists George K. Koromia as a member of these groups (CMS data updated October 2, 2026).

  • North Coast Professional Company, LLC107 clinicians in the group
  • Firelands Regional Medical Center20 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Ohio →

Other cardiologists in Sandusky

Clinicians with the same Medicare primary specialty in Sandusky, OH — not a recommendation.

All cardiologists in Sandusky →

Other clinicians in North Coast Professional Company, LLC

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

Clinician information

CredentialMD
Graduation year2010 (16 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1952780975
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