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Family Practice

John R. McDonough, MD

Works at hospitals in Flemington, NJ · New Jersey

Summary

Dr. John R. McDonough, MD is a family doctor at 2 Kings Ct, Suite 203, Flemington, NJ 08822. Phone: (908) 751-5439. Accepts Medicare assignment. In 2024, John R. McDonough had 149 Original Medicare patients and 713 services. NPI 1942285549. 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: Family doctor (Medicare lists Family Practice)
  • Address: 2 Kings Ct, Suite 203, Flemington, NJ 08822 · Directions
  • Phone: (908) 751‑5439
  • Medicare: Accepts Medicare assignment
  • Hospital: Hunterdon Medical Center
  • Medical school: Rutgers New Jersey Medical School · graduated 1990 (36 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about John R. McDonough, 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 John R. McDonough accept Medicare assignment?
Yes. Medicare's clinician data says John R. McDonough 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 John R. McDonough see?
In 2024, CMS data shows 149 Original Medicare patients and 713 services for John R. McDonough. This counts Original Medicare only and measures volume, not quality.
What is John R. McDonough's NPI number?
1942285549. 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 John R. McDonough, 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 patients149
Services billed to Medicare713
Different services or procedures21
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)296 services
  2. 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)132 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)107 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)50 services
  5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)32 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%
  • Arthritis36%
  • Ischemic heart disease35%
  • Diabetes31%
  • Chronic kidney disease28%

Hospitals where John R. McDonough works

Medicare's Facility Affiliation Data lists John R. McDonough 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.

  • Hunterdon Medical CenterFlemington, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 310005

Practice locations

Addresses where John R. McDonough is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Family Practice doctors in New Jersey →

Other family doctors in Flemington

Clinicians with the same Medicare primary specialty in Flemington, NJ — not a recommendation.

All family doctors in Flemington →

Clinician information

CredentialMD
Medical schoolRutgers New Jersey Medical School
Graduation year1990 (36 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1942285549
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