2026 NPPES data Interventional Cardiology Physician NPI 1144271263 MD
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JOHN PHELAN, MD

Interventional Cardiology Physician in MADISON, Wisconsin. 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 · 596 beneficiaries · Interventional Cardiology Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$197.36
4 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JOHN PHELAN, MD is a Interventional Cardiology Physician ([object Object]) practicing in MADISON, Wisconsin with a Medicare Part D prescribing footprint of 3K claims across 596 beneficiaries — 13% brand-name prescribing . Industry payments of $197.36 across 4 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JOHN PHELAN, MD filed 3,489 Medicare Part D claims in 2023 across MADISON, Wisconsin. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JOHN PHELAN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

JOHN PHELAN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 05/13/2006

NPI 1144271263

Primary specialty

Interventional Cardiology Physician

Niche

3,382 US NPIs in this specialty

Medicare Part D claims

3,489 17% vs specialty avg

2023 prescription claims

Specialty avg: 2,984

Specialty distribution in Wisconsin

How Interventional Cardiology Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Interventional Cardiology Physician share within Wisconsin

1. Interventional Cardiology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Interventional Cardiology Physician share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Interventional Cardiology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Interventional Cardiology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Interventional Cardiology 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).

JOHN PHELAN, MD is a Interventional Cardiology Physician provider practicing in MADISON, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1144271263. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JOHN PHELAN, MD appears in the CMS NPPES registry as a Interventional Cardiology Physician provider holding MD credentials at 700 S PARK ST STE A, MADISON, WI, 53715, with a listed phone of (608) 260-2900. NPI 1144271263 was issued on 05/13/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PHELAN 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 3,489 prescription claims written by this provider, covering 596 Medicare beneficiaries and totaling roughly $613K in drug spend, split 13% brand-name and 87% 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.

Interventional Cardiology Physician is a narrow specialty nationwide, with 3,382 enrolled providers across 53 states and an average of 2,984 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

700 S PARK ST STE A
MADISON, WI 53715

Provider Details

NPI 1144271263
Specialty Interventional Cardiology Physician
Credentials MD
Gender Male
NPI Issued 05/13/2006

Hospital and facility affiliations

Facilities where JOHN PHELAN, MD 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.

DEAN HEALTH SYSTEMS INC
MADISON, WI

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 JOHN PHELAN, MD. Source: openpaymentsdata.cms.gov.

Total received

$197

Largest payer

Edwards Lifesciences Corporation

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

JOHN PHELAN, MD — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 3,489 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.

3,489
Total Claims
$613K
Total Drug Cost
596
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,960
Total Day Supply
265,136
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$556K
Generic Drug Cost
$57K
Antibiotic Claims
29

Patient Demographics

Average Patient Age
76.7 years
Avg HCC Risk Score
1.35
Gender Split
40% female / 60% male
Age Distribution
<65: 17, 65-74: 224, 75-84: 263, 85+: 92

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
310
Metoprolol Succinate
276
Clopidogrel
Clopidogrel Bisulfate
241
Metoprolol Tartrate
201
Rosuvastatin Calcium
184
Lisinopril
180
Carvedilol
178
Eliquis
Apixaban
171
Furosemide
164
Losartan Potassium
156

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

Interventional Cardiology Physician Overview

How JOHN PHELAN, MD fits within the Interventional Cardiology Physician landscape nationally.

3,382
Interventional Cardiology Physician Providers in US
53
States with Interventional Cardiology Physician
2,984
Avg Claims per Provider

JOHN PHELAN, MD's 3,489 claims are above the specialty average of 2,984.

Nearby Interventional Cardiology Physician Providers in Wisconsin

Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as PHELAN.

Compare Interventional Cardiology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHN PHELAN, MD's specialty?
JOHN PHELAN, MD specializes in Interventional Cardiology Physician and practices in MADISON, Wisconsin. Credentials: MD.
How much does JOHN PHELAN, MD prescribe under Medicare Part D?
In 2023, JOHN PHELAN, MD wrote 3,489 Medicare Part D claims totaling $613K in drug costs for 596 beneficiaries.
Where is JOHN PHELAN, MD located?
JOHN PHELAN, MD is located at 700 S PARK ST STE A, MADISON, WI, 53715. Phone: (608) 260-2900.
What is JOHN PHELAN, MD's NPI number?
JOHN PHELAN, MD's National Provider Identifier (NPI) is 1144271263, issued on 05/13/2006.
Does JOHN PHELAN, MD prescribe more brand-name or generic drugs?
JOHN PHELAN, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $556K in brand drug costs.
How many Interventional Cardiology Physician providers are there in the US?
There are 3,382 Interventional Cardiology Physician providers across 53 states in the US. The average Interventional Cardiology Physician provider writes 2,984 Medicare Part D claims per year.
What drugs does JOHN PHELAN, MD prescribe most often?
Based on 2023 Medicare Part D data, JOHN PHELAN, MD's most frequently prescribed drugs include Atorvastatin Calcium, Metoprolol Succinate, Clopidogrel. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN PHELAN, MD accept Medicare?
JOHN PHELAN, MD appears in CMS Medicare data with 3,489 Part D claims and 596 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN PHELAN, MD's credentials?
JOHN PHELAN, MD's NPI is 1144271263 with credentials MD. 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