NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1174584361 M.D.
Verify on CMS → James Flynn, M.D.
Cardiovascular Disease Physician in Londonderry, New Hampshire.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 24,795 in Cardiovascular Disease Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 208 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.2K
23 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
James Flynn, M.D. filed 1,209 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Londonderry, New Hampshire, prescribing 84% generic.
- 1K
- Part D claims, 2023
- 84%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
James Flynn, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,209 Top 22% higher than 78% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
James Flynn, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about James Flynn, M.D.?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
1,209 60% vs specialty avg
Specialty distribution in New Hampshire
How Cardiovascular Disease Physician compares to other specialties among New Hampshire providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Cardiovascular Disease Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
James Flynn, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 6 BUTTRICK RD STE 200, Londonderry, NH, 03053, with a listed phone of (603) 323-0883. NPI 1174584361 was issued on 03/29/2006.
Medicare Part D records for calendar year 2023 show 1,209 prescription claims written by this provider, covering 208 Medicare beneficiaries and totaling roughly $247K in drug spend, split 16% brand-name and 84% generic by claim count.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1174584361 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 03/29/2006 |
Hospital and facility affiliations
Facilities where James Flynn, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Cardiovascular Specialists OF New England, LLC
Londonderry, NH
HCA Health Services OF New Hampshire Inc
Derry, NH
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for James Flynn, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.2K
Largest payer
Inari Medical, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Typical
James Flynn, M.D. - brand share 16.0%
Cardiovascular Disease Physician average
16% brand-name claims vs 84% generic, on 1,209 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,209
Total Claims
$247K
Total Drug Cost
208
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,276
- Total Day Supply
- 97,406
- Brand vs Generic
- 16% brand / 84% generic
- Brand Drug Cost
- $228K
- Generic Drug Cost
- $18K
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 75.7 years
- Avg HCC Risk Score
- 1.47
- Gender Split
- 41% female / 59% male
- Age Distribution
- <65: 11, 65-74: 72, 75-84: 102, 85+: 23
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What James Flynn, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
162 claims
- Metoprolol Succinate
Metoprolol Succinate
143 claims
- Eliquis
Eliquis
107 claims
- Lisinopril
Lisinopril
91 claims
- Metoprolol Tartrate
Metoprolol Tartrate
65 claims
- Amlodipine Besylate 59
Amlodipine Besylate
59 claims
- Spironolactone 49
Spironolactone
49 claims
- Rosuvastatin Calcium 47
Rosuvastatin Calcium
47 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 162 |
| Metoprolol Succinate | 143 |
| Eliquis Apixaban | 107 |
| Lisinopril | 91 |
| Metoprolol Tartrate | 65 |
| Amlodipine Besylate | 59 |
| Spironolactone | 49 |
| Rosuvastatin Calcium | 47 |
| Clopidogrel Clopidogrel Bisulfate | 40 |
| Carvedilol | 35 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Cardiovascular Disease Physician in NH →
All providers in New Hampshire →
Compare specialties →
Cardiovascular Disease Physician Overview
How James Flynn, M.D. fits within the Cardiovascular Disease Physician landscape nationally.
24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
James Flynn, M.D.'s 1,209 claims are below the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in New Hampshire
Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as Flynn.
Dr. Shawn Ahmad
MD
Lebanon, NH
Dr. Bruce Andrus
M.D.
Lebanon, NH
Dr. Gerald Angoff
M.D.
Manchester, NH
Dr. Teimuraz Apridonidze
MD
Lebanon, NH
Dr. Dhrubajyoti Bandyopadhyay
MBBS, MD
Dover, NH
Compare Cardiovascular Disease Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the New Hampshire medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Cardiovascular Disease Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Medical Specialties Explained
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Frequently Asked Questions
What is James Flynn, M.D.'s specialty? ▼
James Flynn, M.D. specializes in Cardiovascular Disease Physician and practices in Londonderry, New Hampshire. Credentials: M.D..
How much does James Flynn, M.D. prescribe under Medicare Part D? ▼
In 2023, James Flynn, M.D. wrote 1,209 Medicare Part D claims totaling $247K in drug costs for 208 beneficiaries.
Where is James Flynn, M.D. located? ▼
James Flynn, M.D. is located at 6 BUTTRICK RD STE 200, Londonderry, NH, 03053. Phone: (603) 323-0883.
What is James Flynn, M.D.'s NPI number? ▼
James Flynn, M.D.'s National Provider Identifier (NPI) is 1174584361, issued on 03/29/2006.
Does James Flynn, M.D. prescribe more brand-name or generic drugs? ▼
James Flynn, M.D.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $228K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does James Flynn, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, James Flynn, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Metoprolol Succinate, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Flynn, M.D. accept Medicare? ▼
James Flynn, M.D. appears in CMS Medicare data with 1,209 Part D claims and 208 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Flynn, M.D.'s credentials? ▼
James Flynn, M.D.'s NPI is 1174584361 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.