Quick answers
- Does James M. Flynn accept Medicare assignment?
- Yes. Medicare's clinician data says James M. Flynn 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 James M. Flynn see?
- In 2024, CMS data shows 748 Original Medicare patients and 1,829 services for James M. Flynn. This counts Original Medicare only and measures volume, not quality.
- What is James M. Flynn's NPI number?
- 1174584361. 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 James M. Flynn, 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 | 748 |
|---|---|
| Services billed to Medicare | 1,829 |
| Different services or procedures | 85 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)300 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)159 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)142 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)114 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)95 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%
- Ischemic heart disease60%
- Atrial fibrillation50%
- Arthritis45%
- Heart failure43%
Hospitals where James M. Flynn works
Medicare's Facility Affiliation Data lists James M. Flynn 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.
- Catholic Medical CenterManchester, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300034
- Elliot HospitalManchester, NH · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 300012
- Parkland Medical CenterDerry, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300017
- Speare Memorial HospitalPlymouth, NH · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 301311
- St Joseph HospitalNashua, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300011
Practice locations
Addresses where James M. Flynn is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Parkland DrDerry, NH 03038 (603) 432‑1500
- 6 Buttrick Rd, Suite 200Londonderry, NH 03053 (603) 323‑0883
Group practices
Medicare enrollment lists James M. Flynn as a member of these groups (CMS data updated October 2, 2026).
- Cardiovascular Specialists of New England, LLC14 clinicians in the group
- HCA Health Services of New Hampshire Inc7 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New Hampshire →
Other cardiologists in Derry
Clinicians with the same Medicare primary specialty in Derry, NH — not a recommendation.
Other clinicians in Cardiovascular Specialists of New England, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Massachusetts Medical School |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1174584361 |
| 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