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Emergency Medicine

Donald F. Kornack, MD

Works at hospitals in Brockton, MA · Massachusetts

Summary

Dr. Donald F. Kornack, MD is an emergency medicine doctor at 49 Harry Kemp Way, Provincetown, MA 02657. Phone: (508) 487-9395. Accepts Medicare assignment. In 2024, Donald F. Kornack had 170 Original Medicare patients and 204 services. NPI 1962427039. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 49 Harry Kemp Way, Provincetown, MA 02657 · Directions
  • Phone: (508) 487‑9395
  • Medicare: Accepts Medicare assignment
  • Hospital: Signature Healthcare Brockton Hospital
  • Group practice: Outer Cape Health Services, Inc.
  • Medical school: Hahnemann University College Of Medicine · graduated 1979 (47 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Donald F. Kornack, 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 Donald F. Kornack accept Medicare assignment?
Yes. Medicare's clinician data says Donald F. Kornack 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 Donald F. Kornack see?
In 2024, CMS data shows 170 Original Medicare patients and 204 services for Donald F. Kornack. This counts Original Medicare only and measures volume, not quality.
What is Donald F. Kornack's NPI number?
1962427039. 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 Donald F. Kornack, 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 patients170
Services billed to Medicare204
Different services or procedures21
Participating Medicare providerYes
Average age of these patients70

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)39 services
  2. Detection test by immunoassay with direct visual observation for influenza virus (87804)28 services
  3. Urinalysis, manual test (81002)16 services
  4. Emergency department visit with moderate level of medical decision making (99284)16 services
  5. Emergency department visit with high level of medical decision making (99285)15 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 cholesterol71%
  • High blood pressure69%
  • Arthritis45%
  • Anxiety41%
  • Depression34%
  • Diabetes24%

Hospitals where Donald F. Kornack works

Medicare's Facility Affiliation Data lists Donald F. Kornack 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 Donald F. Kornack is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Donald F. Kornack as a member of this group (CMS data updated October 2, 2026).

  • Outer Cape Health Services, Inc.51 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Massachusetts →

Other emergency medicine doctors in Massachusetts

Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.

All emergency medicine doctors in Massachusetts →

Other clinicians in Outer Cape 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 year1979 (47 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1962427039
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