2026 NPPES data Adult Congenital Heart Disease Physician NPI 1639175342 MD
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STEPHEN COOK, MD

Adult Congenital Heart Disease Physician in INDIANAPOLIS, Indiana. 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
391
Medicare Part D claims · 101 beneficiaries · Adult Congenital Heart Disease Physician avg: 2K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

STEPHEN COOK, MD filed 391 Medicare Part D claims in 2023 as a Adult Congenital Heart Disease Physician in INDIANAPOLIS, Indiana, prescribing 86% generic.

391
Part D claims, 2023
86%
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.

STEPHEN COOK, MD's Medicare Part D volume vs every U.S. prescriber

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

391 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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 certification likely (heuristic — not verified)

STEPHEN COOK, 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).

What does the federal data show about STEPHEN COOK, MD?

Quality data not reported

NPI registry status

Active

Issued 06/27/2005

NPI 1639175342

Primary specialty

Adult Congenital Heart Disease Physician

Rare

104 US NPIs in this specialty

Medicare Part D claims

391 80% vs specialty avg

2023 prescription claims

Specialty avg: 1,930

Specialty distribution in Indiana

How Adult Congenital Heart Disease Physician compares to other specialties among Indiana providers

Indiana providers

Adult Congenital Heart Disease Physician share within Indiana

1. Adult Congenital Heart Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adult Congenital Heart Disease Physician share within Indiana

Specialty board-certification context

Estimated specialty board-certified rate — Adult Congenital Heart Disease Physician (ABMS / AOA reference)

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

Est. board-certified rate (Adult Congenital Heart Disease Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Adult Congenital Heart 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).

STEPHEN COOK, MD appears in the CMS NPPES registry as a Adult Congenital Heart Disease Physician provider holding MD credentials at 5330 E STOP 11 RD, INDIANAPOLIS, IN, 46237, with a listed phone of (317) 893-1900. NPI 1639175342 was issued on 06/27/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COOK 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 391 prescription claims written by this provider, covering 101 Medicare beneficiaries and totaling roughly $55K in drug spend, split 14% brand-name and 86% 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.

Adult Congenital Heart Disease Physician is a narrow specialty nationwide, with 104 enrolled providers across 31 states and an average of 1,930 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

5330 E STOP 11 RD
INDIANAPOLIS, IN 46237

Provider Details

NPI 1639175342
Specialty Adult Congenital Heart Disease Physician
Credentials MD
Gender Male
NPI Issued 06/27/2005

Hospital and facility affiliations

Facilities where STEPHEN COOK, 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.

FRANCISCAN PHYSICIAN NETWORK
INDIANAPOLIS, IN

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Typical

STEPHEN COOK, MD — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 391 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.

391
Total Claims
$55K
Total Drug Cost
101
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
764
Total Day Supply
22,539
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$50K
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
66.2 years
Avg HCC Risk Score
1.44
Gender Split
50% female / 50% male
Age Distribution
<65: 27, 65-74: 38, 75-84: 25, 85+: 11

Top Prescribed Drugs (Medicare Part D)

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

What STEPHEN COOK, MD 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
92
Spironolactone
43
Lisinopril
36
Torsemide
30
Hydrochlorothiazide
24
Eliquis
Apixaban
13
Farxiga
Dapagliflozin Propanediol
11
Losartan Potassium
11
Potassium Chloride
11

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

Adult Congenital Heart Disease Physician Overview

How STEPHEN COOK, MD fits within the Adult Congenital Heart Disease Physician landscape nationally.

104
Adult Congenital Heart Disease Physician Providers in US
31
States with Adult Congenital Heart Disease Physician
1,930
Avg Claims per Provider

STEPHEN COOK, MD's 391 claims are below the specialty average of 1,930.

Nearby Adult Congenital Heart Disease Physician Providers in Indiana

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

Compare Adult Congenital Heart Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is STEPHEN COOK, MD's specialty?
STEPHEN COOK, MD specializes in Adult Congenital Heart Disease Physician and practices in INDIANAPOLIS, Indiana. Credentials: MD.
How much does STEPHEN COOK, MD prescribe under Medicare Part D?
In 2023, STEPHEN COOK, MD wrote 391 Medicare Part D claims totaling $55K in drug costs for 101 beneficiaries.
Where is STEPHEN COOK, MD located?
STEPHEN COOK, MD is located at 5330 E STOP 11 RD, INDIANAPOLIS, IN, 46237. Phone: (317) 893-1900.
What is STEPHEN COOK, MD's NPI number?
STEPHEN COOK, MD's National Provider Identifier (NPI) is 1639175342, issued on 06/27/2005.
Does STEPHEN COOK, MD prescribe more brand-name or generic drugs?
STEPHEN COOK, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $50K in brand drug costs.
How many Adult Congenital Heart Disease Physician providers are there in the US?
There are 104 Adult Congenital Heart Disease Physician providers across 31 states in the US. The average Adult Congenital Heart Disease Physician provider writes 1,930 Medicare Part D claims per year.
What drugs does STEPHEN COOK, MD prescribe most often?
Based on 2023 Medicare Part D data, STEPHEN COOK, MD's most frequently prescribed drugs include Metoprolol Succinate, Spironolactone, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEPHEN COOK, MD accept Medicare?
STEPHEN COOK, MD appears in CMS Medicare data with 391 Part D claims and 101 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEPHEN COOK, MD's credentials?
STEPHEN COOK, MD's NPI is 1639175342 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