Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

David M. Zelechoski, MD

Works at hospitals in Danville, PA · Bloomsburg, PA · Williamsport, PA … · Pennsylvania

Summary

Dr. David M. Zelechoski, MD is an internal medicine doctor at 1 Hospital Dr, Lewisburg, PA 17837. Phone: (570) 966-1122. Accepts Medicare assignment. In 2024, David M. Zelechoski had 1,182 Original Medicare patients and 5,082 services. NPI 1356360085. 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.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1 Hospital Dr, Lewisburg, PA 17837 · Directions (8 more locations)
  • Phone: (570) 966‑1122
  • Medicare: Accepts Medicare assignment
  • Hospitals: Geisinger Medical Center, Geisinger-Bloomsburg Hospital, UPMC Williamsport and 1 more
  • Group practice: Phoenix Rehabilitation and Health Services Inc (+2 more)
  • Medical school: Hahnemann University College Of Medicine · graduated 1986 (40 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about David M. Zelechoski, 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 David M. Zelechoski accept Medicare assignment?
Yes. Medicare's clinician data says David M. Zelechoski 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 David M. Zelechoski see?
In 2024, CMS data shows 1,182 Original Medicare patients and 5,082 services for David M. Zelechoski. This counts Original Medicare only and measures volume, not quality.
What is David M. Zelechoski's NPI number?
1356360085. 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 David M. Zelechoski, 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 patients1,182
Services billed to Medicare5,082
Different services or procedures42
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Injection, denosumab, 1 mg (J0897)1,500 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)943 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)749 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)343 services
  5. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)249 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%
  • Arthritis50%
  • Ischemic heart disease35%
  • Diabetes34%
  • Heart failure29%

Hospitals where David M. Zelechoski works

Medicare's Facility Affiliation Data lists David M. Zelechoski 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.

  • Geisinger Medical CenterDanville, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390006
  • Geisinger-Bloomsburg HospitalBloomsburg, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390003
  • UPMC WilliamsportWilliamsport, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390045
  • WellSpan Evangelical Community HospitalLewisburg, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390013

Practice locations

Addresses where David M. Zelechoski is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.

  • 1 Hospital DrLewisburg, PA 17837
  • 101 Meadow Green DrMifflinburg, PA 17844 (570) 966‑1122
  • 2000 Westinghouse Dr, Suite 200Cranberry Twp, PA 16066
  • 25 Monument RdYork, PA 17403
  • 3 Hospital DrLewisburg, PA 17837

Group practices

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

  • Phoenix Rehabilitation and Health Services Inc2,800 clinicians in the group
  • WellSpan Medical Group2,480 clinicians in the group
  • Evangelical Medical Services Organization248 clinicians in the group

Specialties

Find other Internal Medicine doctors in Pennsylvania →

Other internal medicine doctors in Lewisburg

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

All internal medicine doctors in Lewisburg →

Other clinicians in Phoenix Rehabilitation and Health Services Inc

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

Clinician information

CredentialMD
Medical schoolHahnemann University College Of Medicine
Graduation year1986 (40 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1356360085
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