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

Cardiovascular Disease (Cardiology)

Marc K. Antoine, MD

Works at hospitals in Easton, PA · Sellersville, PA · Stroudsburg, PA … · Pennsylvania

Summary

Dr. Marc K. Antoine, MD is a cardiologist at 1021 Park Ave, Quakertown, PA 18951. Phone: (610) 954-3571. Accepts Medicare assignment. In 2024, Marc K. Antoine had 1,059 Original Medicare patients and 2,419 services. NPI 1720441777. 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 Marc K. Antoine, 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 Marc K. Antoine accept Medicare assignment?
Yes. Medicare's clinician data says Marc K. Antoine 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 Marc K. Antoine see?
In 2024, CMS data shows 1,059 Original Medicare patients and 2,419 services for Marc K. Antoine. This counts Original Medicare only and measures volume, not quality.
What is Marc K. Antoine's NPI number?
1720441777. 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 Marc K. Antoine, 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 patients1,059
Services billed to Medicare2,419
Different services or procedures63
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)558 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)337 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)228 services
  4. 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)156 services
  5. Injection, regadenoson, 0.1 mg (J2785)156 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%
  • Diabetes58%
  • Arthritis52%
  • Chronic kidney disease49%
  • Ischemic heart disease48%

Hospitals where Marc K. Antoine works

Medicare's Facility Affiliation Data lists Marc K. Antoine 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 Marc K. Antoine is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 11; the Medicare profile lists all.

  • 1021 Park AveQuakertown, PA 18951
  • 1425 8th AveBethlehem, PA 18018
  • 1469 8th AveBethlehem, PA 18018
  • 1700 St Lukes BlvdEaston, PA 18045
  • 1736 Hamilton StAllentown, PA 18104

Group practices

Medicare enrollment lists Marc K. Antoine as a member of this group (CMS data updated October 2, 2026).

  • St Lukes Physician Group Inc2,198 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Pennsylvania →

Other cardiologists in Quakertown

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

All cardiologists in Quakertown →

Other clinicians in St Lukes Physician Group Inc

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

Clinician information

CredentialMD
Graduation year2016 (10 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1720441777
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