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Cardiovascular Disease (Cardiology)

Ki M. Hassler, DO

Works at hospitals in Decatur, IL · Danville, PA · Springfield, IL … · Illinois, Pennsylvania, Wisconsin

Summary

Dr. Ki M. Hassler, DO is a cardiologist at 1 Hospital Dr, Lewisburg, PA 17837. Phone: (217) 876-8121. Accepts Medicare assignment. In 2024, Ki M. Hassler had 1,963 Original Medicare patients and 11,838 services. NPI 1417027665. 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 Ki M. Hassler, 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 Ki M. Hassler accept Medicare assignment?
Yes. Medicare's clinician data says Ki M. Hassler 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 Ki M. Hassler see?
In 2024, CMS data shows 1,963 Original Medicare patients and 11,838 services for Ki M. Hassler. This counts Original Medicare only and measures volume, not quality.
What is Ki M. Hassler's NPI number?
1417027665. 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 Ki M. Hassler, 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 patients1,963
Services billed to Medicare11,838
Different services or procedures52
Participating Medicare providerYes
Average age of these patients79

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)1,929 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,291 services
  3. Evaluation of cardiac rhythm monitor system, remote up to 30 days (93298)1,148 services
  4. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)1,057 services
  5. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)1,057 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%
  • Arthritis58%
  • Ischemic heart disease43%
  • Atrial fibrillation39%
  • Chronic kidney disease33%

Hospitals where Ki M. Hassler works

Medicare's Facility Affiliation Data lists Ki M. Hassler 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 Ki M. Hassler is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 10; the Medicare profile lists all.

Group practices

Medicare enrollment lists Ki M. Hassler as a member of these groups (CMS data updated October 2, 2026).

  • WellSpan Medical Group2,480 clinicians in the group
  • Dean Health Systems Inc1,159 clinicians in the group
  • Decatur Memorial Hospital174 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Pennsylvania →

Other cardiologists in Lewisburg

Clinicians with the same Medicare primary specialty in Lewisburg, PA — not a recommendation.

All cardiologists in Lewisburg →

Other clinicians in WellSpan Medical Group

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

Clinician information

CredentialDO
Graduation year2000 (26 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1417027665
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