NPI registry status
Active
2026 NPPES data Adult Congenital Heart Disease Physician NPI 1639175342 MD
Verify on CMS → Stephen Cook, MD
Adult Congenital Heart Disease Physician in Indianapolis, Indiana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 114 in Adult Congenital Heart 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
2K
Medicare Part D claims · 431 beneficiaries · Adult Congenital Heart Disease Physician avg: 2K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Stephen Cook, MD filed 2,251 Medicare Part D claims in 2024 as an Adult Congenital Heart Disease Physician in Indianapolis, Indiana, prescribing 85% generic.
- 2K
- Part D claims, 2024
- 85%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥85th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Stephen Cook, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1639175342), first enumerated 06/27/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 2,251 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1639175342 · Adult Congenital Heart Disease Physician
NPI-10 · ENUM-LEGACY · TAX-TRACE · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1639175342
- ENUM-LEGACY 2005
- TAX-TRACE 114
- RX-MID 2,251
- BOOK-THIN 3 in Indiana
- PHOTO-ENUM Heather Bartlett, MD · 2005
Stephen Cook, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
2,251 ≥ 85th percentile 85% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
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 reportedPrimary specialty
Adult Congenital Heart Disease Physician
Medicare Part D claims
2,251 26% vs specialty avg
Specialty distribution in Indiana
How Adult Congenital Heart Disease Physician compares to other specialties among Indiana 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 Adult Congenital Heart 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).
Practice Address
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 15.0%
Adult Congenital Heart Disease Physician average
15% brand-name claims vs 85% generic, on 2,251 2024 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 2024.
2,251
Total Claims
$364K
Total Drug Cost
431
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,147.8
- Total Day Supply
- 153,487
- Brand vs Generic
- 15% brand / 85% generic
- Brand Drug Cost
- $345K
- Generic Drug Cost
- $18K
Patient Demographics
- Average Patient Age
- 73.8 years
- Avg HCC Risk Score
- 1.48
- Gender Split
- 49% female / 51% male
- Age Distribution
- <65: 36, 65-74: 192, 75-84: 154, 85+: 49
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Stephen Cook, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Metoprolol Succinate
Metoprolol Succinate
405 claims
- Atorvastatin Calcium
Atorvastatin Calcium
164 claims
- Losartan Potassium 146
Losartan Potassium
146 claims
- Spironolactone 144
Spironolactone
144 claims
- Amlodipine Besylate 130
Amlodipine Besylate
130 claims
- Entresto 110
Entresto
110 claims
- Torsemide 109
Torsemide
109 claims
- Hydrochlorothiazide 103
Hydrochlorothiazide
103 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 405 |
| Atorvastatin Calcium | 164 |
| Losartan Potassium | 146 |
| Spironolactone | 144 |
| Amlodipine Besylate | 130 |
| Entresto Sacubitril/Valsartan | 110 |
| Torsemide | 109 |
| Hydrochlorothiazide | 103 |
| Eliquis Apixaban | 96 |
| Jardiance Empagliflozin | 90 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Adult Congenital Heart Disease Physician in IN →
All providers in Indiana →
Compare specialties →
Adult Congenital Heart Disease Physician Overview
How Stephen Cook, MD fits within the Adult Congenital Heart Disease Physician landscape nationally.
114
Adult Congenital Heart Disease Physician Providers in US
32
States with Adult Congenital Heart Disease Physician
1,792
Avg Claims per Provider
Stephen Cook, MD's 2,251 claims are above the specialty average of 1,792.
Nationwide Adult Congenital Heart Disease Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Cook, both outside Indiana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
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.
One of 3 Adult Congenital Heart Disease Physician providers enrolled in Indiana, 2 are shown here.
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 2024, Stephen Cook, MD wrote 2,251 Medicare Part D claims totaling $364K in drug costs for 431 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 15% brand-name and 85% generic drugs by claim count, with $345K in brand drug costs.
How many Adult Congenital Heart Disease Physician providers are there in the US? ▼
There are 114 Adult Congenital Heart Disease Physician providers across 32 states in the US. The average Adult Congenital Heart Disease Physician provider writes 1,792 Medicare Part D claims per year.
What drugs does Stephen Cook, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Stephen Cook, MD's most frequently prescribed drugs include Metoprolol Succinate, Atorvastatin Calcium, Losartan Potassium. 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 2,251 Part D claims and 431 Medicare beneficiaries in 2024. 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
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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.