2026 NPPES data Cardiovascular Disease Physician NPI 1457337321 M.D.
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LOUIS FINK, M.D.

Cardiovascular Disease Physician in MANCHESTER, New Hampshire. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 499 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

LOUIS FINK, M.D. filed 2,906 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in MANCHESTER, New Hampshire, prescribing 88% generic.

3K
Part D claims, 2023
88%
generic prescribing

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.

LOUIS FINK, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

2,906 Top 12% higher than 88% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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-eligible specialty (heuristic — not verified)

LOUIS FINK, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about LOUIS FINK, M.D.?

Quality data not reported

NPI registry status

Active

Issued 12/21/2005

NPI 1457337321

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

2,906 4% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

Specialty distribution in New Hampshire

How Cardiovascular Disease Physician compares to other specialties among New Hampshire providers

New Hampshire providers

Cardiovascular Disease Physician share within New Hampshire

1. Cardiovascular Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Cardiovascular Disease Physician share within New Hampshire

Specialty board-certification context

Estimated specialty board-certified rate — Cardiovascular Disease Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Cardiovascular Disease Physician ABMS/AOA estimate

Est. board-certified rate (Cardiovascular Disease Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Cardiovascular Disease Physician) — ABMS / AOA estimate

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).

LOUIS FINK, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 100 MCGREGOR ST, MANCHESTER, NH, 03102, with a listed phone of (603) 663-6657. NPI 1457337321 was issued on 12/21/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FINK most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 2,906 prescription claims written by this provider, covering 499 Medicare beneficiaries and totaling roughly $395K in drug spend, split 12% brand-name and 88% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

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

100 MCGREGOR ST
MANCHESTER, NH 03102

Provider Details

NPI 1457337321
Specialty Cardiovascular Disease Physician
Credentials M.D.
Gender Male
NPI Issued 12/21/2005

Brand vs generic prescribing mix · Typical

LOUIS FINK, M.D. — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 2,906 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.

2,906
Total Claims
$395K
Total Drug Cost
499
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,220
Total Day Supply
215,687
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$343K
Generic Drug Cost
$52K

Patient Demographics

Average Patient Age
76.1 years
Avg HCC Risk Score
1.37
Gender Split
40% female / 60% male
Age Distribution
<65: 25, 65-74: 186, 75-84: 206, 85+: 82

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What LOUIS FINK, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Metoprolol Succinate
556
Atorvastatin Calcium
243
Eliquis
Apixaban
201
Amlodipine Besylate
200
Lisinopril
167
Furosemide
124
Losartan Potassium
124
Rosuvastatin Calcium
118
Metoprolol Tartrate
115
Potassium Chloride
92

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Cardiovascular Disease Physician Overview

How LOUIS FINK, 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

LOUIS FINK, M.D.'s 2,906 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 FINK.

Compare Cardiovascular Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LOUIS FINK, M.D.'s specialty?
LOUIS FINK, M.D. specializes in Cardiovascular Disease Physician and practices in MANCHESTER, New Hampshire. Credentials: M.D..
How much does LOUIS FINK, M.D. prescribe under Medicare Part D?
In 2023, LOUIS FINK, M.D. wrote 2,906 Medicare Part D claims totaling $395K in drug costs for 499 beneficiaries.
Where is LOUIS FINK, M.D. located?
LOUIS FINK, M.D. is located at 100 MCGREGOR ST, MANCHESTER, NH, 03102. Phone: (603) 663-6657.
What is LOUIS FINK, M.D.'s NPI number?
LOUIS FINK, M.D.'s National Provider Identifier (NPI) is 1457337321, issued on 12/21/2005.
Does LOUIS FINK, M.D. prescribe more brand-name or generic drugs?
LOUIS FINK, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $343K 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 LOUIS FINK, M.D. prescribe most often?
Based on 2023 Medicare Part D data, LOUIS FINK, M.D.'s most frequently prescribed drugs include Metoprolol Succinate, Atorvastatin Calcium, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LOUIS FINK, M.D. accept Medicare?
LOUIS FINK, M.D. appears in CMS Medicare data with 2,906 Part D claims and 499 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LOUIS FINK, M.D.'s credentials?
LOUIS FINK, M.D.'s NPI is 1457337321 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

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