NPI registry status
Active
2026 NPPES data Interventional Cardiology Physician NPI 1396713368 M.D.
Verify on CMS → Bonnie Hiatt, M.D.
Interventional Cardiology Physician in Madison, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,400 in Interventional Cardiology 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
3K
Medicare Part D claims · 424 beneficiaries · Interventional Cardiology Physician avg: 3K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.6/100
▼ 10 pts below national avg 83.1 · Mid-tier
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
Bonnie Hiatt, M.D. reported a CMS MIPS final score of 73.6/100 - below the 83.1 national average - and filed 2,986 Medicare Part D claims in 2023.
- 73.6/100
- MIPS score · -10 vs avg
- 3K
- 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.
Bonnie Hiatt, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
74 11th percentile higher than 11% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Bonnie Hiatt, M.D. sits
This provider among interventional cardiology physician peers
Across the 1,386 interventional cardiology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Bonnie Hiatt, M.D. writes more Part D claims than 53% of them and scores higher on MIPS quality than 10% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one interventional cardiology physician peer from a representative sample of 60; the gold marker is Bonnie Hiatt, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Bonnie Hiatt, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Bonnie Hiatt, M.D.?
Below national averagePrimary specialty
Interventional Cardiology Physician
Medicare Part D claims
2,986 0% vs specialty avg
MIPS final score
73.6/100 9.5 pts vs avg
Specialty distribution in Connecticut
How Interventional Cardiology Physician compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Bonnie Hiatt, M.D.'s 2023 MIPS final score plotted against the Interventional Cardiology Physician national average
- MIPS Final Score
- 73.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Interventional Cardiology Physician) - 73.6/100 vs national avg 83.1
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).
Bonnie Hiatt, M.D. appears in the CMS NPPES registry as an Interventional Cardiology Physician provider holding M.D. credentials at 27 INDIGO TRL, Madison, CT, 06443, with a listed phone of (203) 785-4114. NPI 1396713368 was issued on 03/08/2006.
Medicare Part D records for calendar year 2023 show 2,986 prescription claims written by this provider, covering 424 Medicare beneficiaries and totaling roughly $488K in drug spend, split 14% brand-name and 86% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 73.6/100 for the 2023 performance year (Quality 75.8, Cost 51.4), compared with the national average of 83.1.
Interventional Cardiology Physician is a narrow specialty nationwide, with 3,400 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
Provider Details
| NPI | 1396713368 |
|---|---|
| Specialty | Interventional Cardiology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 03/08/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
73.5637
Final Score
Avg: 83.1
75.8435
Quality
51.4318
Cost
74
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Bonnie Hiatt, 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.
Yale University
Guilford, CT
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
Bonnie Hiatt, M.D. - brand share 14.0%
Interventional Cardiology Physician average
14% brand-name claims vs 86% generic, on 2,986 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.
2,986
Total Claims
$488K
Total Drug Cost
424
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,802
- Total Day Supply
- 233,304
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $426K
- Generic Drug Cost
- $62K
Patient Demographics
- Average Patient Age
- 77.0 years
- Avg HCC Risk Score
- 1.32
- Gender Split
- 55% female / 45% male
- Age Distribution
- <65: 18, 65-74: 146, 75-84: 177, 85+: 83
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Bonnie Hiatt, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metoprolol Succinate
Metoprolol Succinate
349 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
284 claims
- Amlodipine Besylate
Amlodipine Besylate
241 claims
- Atorvastatin Calcium
Atorvastatin Calcium
226 claims
- Eliquis
Eliquis
209 claims
- Lisinopril
Lisinopril
159 claims
- Losartan Potassium
Losartan Potassium
153 claims
- Carvedilol
Carvedilol
142 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 349 |
| Rosuvastatin Calcium | 284 |
| Amlodipine Besylate | 241 |
| Atorvastatin Calcium | 226 |
| Eliquis Apixaban | 209 |
| Lisinopril | 159 |
| Losartan Potassium | 153 |
| Carvedilol | 142 |
| Hydrochlorothiazide | 101 |
| Furosemide | 84 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Interventional Cardiology Physician in CT →
All providers in Connecticut →
Compare specialties →
Interventional Cardiology Physician Overview
How Bonnie Hiatt, M.D. fits within the Interventional Cardiology Physician landscape nationally.
3,400
Interventional Cardiology Physician Providers in US
53
States with Interventional Cardiology Physician
2,984
Avg Claims per Provider
Bonnie Hiatt, M.D.'s 2,986 claims are above the specialty average of 2,984.
Nearby Interventional Cardiology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Hiatt.
Dr. Robert Attaran
M.D., F.A.C.C.
Bridgeport, CT
Dr. Talhat Azemi
M.D.
Hartford, CT
Dr. Barbara Burtness
M.D.
New Haven, CT
Dr. Patrick Corcoran
M.D.
Bloomfield, CT
Dr. Hari Deshpande
MD
New Haven, CT
Compare Interventional Cardiology 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Interventional Cardiology 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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Frequently Asked Questions
What is Bonnie Hiatt, M.D.'s specialty? ▼
Bonnie Hiatt, M.D. specializes in Interventional Cardiology Physician and practices in Madison, Connecticut. Credentials: M.D..
How much does Bonnie Hiatt, M.D. prescribe under Medicare Part D? ▼
In 2023, Bonnie Hiatt, M.D. wrote 2,986 Medicare Part D claims totaling $488K in drug costs for 424 beneficiaries.
What is Bonnie Hiatt, M.D.'s Medicare quality score? ▼
Bonnie Hiatt, M.D. has a CMS MIPS Final Score of 73.6/100 (Quality: 75.8, Cost: 51.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Bonnie Hiatt, M.D. located? ▼
Bonnie Hiatt, M.D. is located at 27 INDIGO TRL, Madison, CT, 06443. Phone: (203) 785-4114.
What is Bonnie Hiatt, M.D.'s NPI number? ▼
Bonnie Hiatt, M.D.'s National Provider Identifier (NPI) is 1396713368, issued on 03/08/2006.
Does Bonnie Hiatt, M.D. prescribe more brand-name or generic drugs? ▼
Bonnie Hiatt, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $426K in brand drug costs.
How many Interventional Cardiology Physician providers are there in the US? ▼
There are 3,400 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 Bonnie Hiatt, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Bonnie Hiatt, M.D.'s most frequently prescribed drugs include Metoprolol Succinate, Rosuvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Bonnie Hiatt, M.D. accept Medicare? ▼
Bonnie Hiatt, M.D. appears in CMS Medicare data with 2,986 Part D claims and 424 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bonnie Hiatt, M.D.'s credentials? ▼
Bonnie Hiatt, M.D.'s NPI is 1396713368 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.
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 May 2026.