Quick answers
- Does Kerrilynn Hennessey accept Medicare assignment?
- Yes. Medicare's clinician data says Kerrilynn Hennessey 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 Kerrilynn Hennessey see?
- In 2024, CMS data shows 2,314 Original Medicare patients and 3,827 services for Kerrilynn Hennessey. This counts Original Medicare only and measures volume, not quality.
- What is Kerrilynn Hennessey's NPI number?
- 1952747446. 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 Kerrilynn Hennessey, 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 patients | 2,314 |
|---|---|
| Services billed to Medicare | 3,827 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,446 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)664 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)216 services
- Ultrasound of heart blood flow, valves and chambers, follow-up (93321)212 services
- Ultrasound of heart with color-depicted blood flow, rate and valve function (93325)185 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 cholesterol71%
- Arthritis46%
- Ischemic heart disease46%
- Atrial fibrillation43%
- Heart failure40%
Hospitals where Kerrilynn Hennessey works
Medicare's Facility Affiliation Data lists Kerrilynn Hennessey 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
- Cheshire Medical CenterKeene, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300019
- 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
- Springfield HospitalSpringfield, VT · Critical Access Hospital · Emergency services: listed by Medicare · CCN 471306
Practice locations
Addresses where Kerrilynn Hennessey is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Medical Ctr DrLebanon, NH 03756 (603) 650‑5000
- 18 Old Etna RdLebanon, NH 03766 (603) 650‑4000
- 2300 Southwood DrNashua, NH 03063
- PO Box, Suite 810Hanover, NH 03755
Group practices
Medicare enrollment lists Kerrilynn Hennessey 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.
Other clinicians in Dartmouth-Hitchcock Clinic
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1952747446 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians