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

Cardiovascular Disease (Cardiology)

Jon W. Wahrenberger, MD

Works at hospitals in Lebanon, NH · Windsor, VT · New London, NH … · New Hampshire, Vermont

Summary

Dr. Jon W. Wahrenberger, MD is a cardiologist at 1 Medical Ctr Dr, Lebanon, NH 03756. Phone: (603) 650-5000. Accepts Medicare assignment. In 2024, Jon W. Wahrenberger had 3,966 Original Medicare patients and 5,622 services. NPI 1356388037. 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 Jon W. Wahrenberger, 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 Jon W. Wahrenberger accept Medicare assignment?
Yes. Medicare's clinician data says Jon W. Wahrenberger 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 Jon W. Wahrenberger see?
In 2024, CMS data shows 3,966 Original Medicare patients and 5,622 services for Jon W. Wahrenberger. This counts Original Medicare only and measures volume, not quality.
What is Jon W. Wahrenberger's NPI number?
1356388037. 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 Jon W. Wahrenberger, 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 patients3,966
Services billed to Medicare5,622
Different services or procedures16
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)4,563 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)543 services
  3. Heart rhythm review and interpretation of continous external ekg over 8-15 days (93248)249 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)112 services
  5. Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days (93244)41 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 cholesterol67%
  • Arthritis45%
  • Ischemic heart disease41%
  • Atrial fibrillation39%
  • Heart failure32%

Hospitals where Jon W. Wahrenberger works

Medicare's Facility Affiliation Data lists Jon W. Wahrenberger 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.

  • Alice Peck Day Memorial HospitalLebanon, NH · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 301305
  • Mary Hitchcock Memorial HospitalLebanon, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300003
  • Mt Ascutney HospitalWindsor, VT · Critical Access Hospital · Emergency services: listed by Medicare · CCN 471302
  • New London HospitalNew London, NH · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 301304
  • Springfield HospitalSpringfield, VT · Critical Access Hospital · Emergency services: listed by Medicare · CCN 471306

Practice locations

Addresses where Jon W. Wahrenberger is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jon W. Wahrenberger as a member of these groups (CMS data updated October 2, 2026).

  • Dartmouth-Hitchcock Clinic1,472 clinicians in the group
  • Mary Hitchcock Memorial Hospital1,280 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in New Hampshire →

Other cardiologists in Lebanon

Clinicians with the same Medicare primary specialty in Lebanon, NH — not a recommendation.

All cardiologists in Lebanon →

Other clinicians in Dartmouth-Hitchcock Clinic

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

Clinician information

CredentialMD
Medical schoolHahnemann University College Of Medicine
Graduation year1985 (41 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1356388037
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