Quick answers
- Does Karen J. Ducharme accept Medicare assignment?
- Yes. Medicare's clinician data says Karen J. Ducharme 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 Karen J. Ducharme see?
- In 2024, CMS data shows 253 Original Medicare patients and 604 services for Karen J. Ducharme. This counts Original Medicare only and measures volume, not quality.
- What is Karen J. Ducharme's NPI number?
- 1801109541. 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 Karen J. Ducharme, 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 | 253 |
|---|---|
| Services billed to Medicare | 604 |
| Different services or procedures | 22 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)161 services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)136 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)83 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)67 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)61 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 cholesterol70%
- High blood pressure69%
- Arthritis51%
- Depression28%
- Anxiety27%
- Atrial fibrillation26%
Hospitals where Karen J. Ducharme works
Medicare's Facility Affiliation Data lists Karen J. Ducharme 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.
- Concord HospitalConcord, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 300001
- Concord Hospital- LaconiaLaconia, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300005
Practice locations
Addresses where Karen J. Ducharme is enrolled with Medicare (CMS data updated October 2, 2026).
- 18 Foundry St, Suite 201Concord, NH 03301 (603) 228‑0071
Group practices
Medicare enrollment lists Karen J. Ducharme as a member of this group (CMS data updated October 2, 2026).
- Concord Hospital Inc567 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Concord
Clinicians with the same Medicare primary specialty in Concord, NH — not a recommendation.
Other clinicians in Concord Hospital Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2010 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1801109541 |
| 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