NPI registry status
Active
2026 NPPES data Advanced Heart Failure and Transplant Cardiology Physician NPI 1316441827 MD
Verify on CMS → Michael Sobieraj, MD
Advanced Heart Failure and Transplant Cardiology Physician in New Haven, 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 566 in Advanced Heart Failure and Transplant 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
161
Medicare Part D claims · 28 beneficiaries · Advanced Heart Failure and Transplant Cardiology Physician avg: 2K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$208.62
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Michael Sobieraj, MD filed 161 Medicare Part D claims in 2024 as an Advanced Heart Failure and Transplant Cardiology Physician in New Haven, Connecticut, prescribing 91% generic.
- 161
- Part D claims, 2024
- 91%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥34th
- 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 Michael Sobieraj, 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 1316441827), first enumerated 03/20/2018.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 161 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
- Reported
Industry payment transparency
$208.62 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1316441827 · Advanced Heart Failure and Transplant Cardiology Physician
NPI-10 · ENUM-RECENT · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1316441827
- ENUM-RECENT 2018
- TAX-NARROW 566
- RX-LIGHT 161
- BOOK-THIN 6 in Connecticut
- PHOTO-ENUM Dou Huang · 2018
Michael Sobieraj, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
161 ≥ 34th percentile 34% 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)
Michael Sobieraj, 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 Michael Sobieraj, MD?
Quality data not reportedPrimary specialty
Advanced Heart Failure and Transplant Cardiology Physician
Medicare Part D claims
161 92% vs specialty avg
Specialty distribution in Connecticut
How Advanced Heart Failure and Transplant Cardiology Physician compares to other specialties among Connecticut 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 Advanced Heart Failure and Transplant Cardiology 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 | 1316441827 |
|---|---|
| Specialty | Advanced Heart Failure and Transplant Cardiology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 03/20/2018 |
Hospital and facility affiliations
Facilities where Michael Sobieraj, 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.
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).
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 Michael Sobieraj, MD. Source: openpaymentsdata.cms.gov.
Total received
$209
Largest payer
Edwards Lifesciences Corporation
Most common payment type
Education
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 · Generic-heavy
Michael Sobieraj, MD - brand share 9.0%
Advanced Heart Failure and Transplant Cardiology Physician average
9% brand-name claims vs 91% generic, on 161 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.
161
Total Claims
$22K
Total Drug Cost
28
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 366.2
- Total Day Supply
- 10,894
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $20K
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 70.4 years
- Avg HCC Risk Score
- 1.70
- Gender Split
- 50% female / 50% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Michael Sobieraj, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Metoprolol Succinate
Metoprolol Succinate
22 claims
- Atorvastatin Calcium
Atorvastatin Calcium
21 claims
- Carvedilol
Carvedilol
18 claims
- Amlodipine Besylate
Amlodipine Besylate
15 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
13 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 22 |
| Atorvastatin Calcium | 21 |
| Carvedilol | 18 |
| Amlodipine Besylate | 15 |
| Rosuvastatin Calcium | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Advanced Heart Failure and Transplant Cardiology Physician in CT →
All providers in Connecticut →
Compare specialties →
Advanced Heart Failure and Transplant Cardiology Physician Overview
How Michael Sobieraj, MD fits within the Advanced Heart Failure and Transplant Cardiology Physician landscape nationally.
566
Advanced Heart Failure and Transplant Cardiology Physician Providers in US
48
States with Advanced Heart Failure and Transplant Cardiology Physician
1,916
Avg Claims per Provider
Michael Sobieraj, MD's 161 claims are below the specialty average of 1,916.
Nationwide Advanced Heart Failure and Transplant Cardiology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Sobieraj, both outside Connecticut so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2018)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Advanced Heart Failure and Transplant Cardiology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Sobieraj.
One of 6 Advanced Heart Failure and Transplant Cardiology Physician providers enrolled in Connecticut, 5 are shown here.
Frequently Asked Questions
What is Michael Sobieraj, MD's specialty? ▼
Michael Sobieraj, MD specializes in Advanced Heart Failure and Transplant Cardiology Physician and practices in New Haven, Connecticut. Credentials: MD.
How much does Michael Sobieraj, MD prescribe under Medicare Part D? ▼
In 2024, Michael Sobieraj, MD wrote 161 Medicare Part D claims totaling $22K in drug costs for 28 beneficiaries.
Where is Michael Sobieraj, MD located? ▼
Michael Sobieraj, MD is located at 20 YORK ST, New Haven, CT, 06510. Phone: (203) 688-4242.
What is Michael Sobieraj, MD's NPI number? ▼
Michael Sobieraj, MD's National Provider Identifier (NPI) is 1316441827, issued on 03/20/2018.
Does Michael Sobieraj, MD prescribe more brand-name or generic drugs? ▼
Michael Sobieraj, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $20K in brand drug costs.
How many Advanced Heart Failure and Transplant Cardiology Physician providers are there in the US? ▼
There are 566 Advanced Heart Failure and Transplant Cardiology Physician providers across 48 states in the US. The average Advanced Heart Failure and Transplant Cardiology Physician provider writes 1,916 Medicare Part D claims per year.
What drugs does Michael Sobieraj, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Michael Sobieraj, MD's most frequently prescribed drugs include Metoprolol Succinate, Atorvastatin Calcium, Carvedilol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Sobieraj, MD accept Medicare? ▼
Michael Sobieraj, MD appears in CMS Medicare data with 161 Part D claims and 28 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Sobieraj, MD's credentials? ▼
Michael Sobieraj, MD's NPI is 1316441827 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.