NPI registry status
Active
2026 NPPES data Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician NPI 1174596639 MD
Verify on CMS → John Heiser, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Grand Rapids, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 5,174 in Thoracic Surgery (Cardiothoracic Vascular Surgery) 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.
MIPS score
84.3/100
▲ 1 pts above national avg 83.5 · Above neutral
Industry payments
$171.99
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
John Heiser, MD reported a CMS MIPS final score of 84.3/100 - above the 83.5 national average.
- 84.3/100
- MIPS score · +1 vs avg
- Likely
- board-certified (heuristic)
- ≥42nd
- pct among measured MIPS (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 John Heiser, MD
Federal records show an active NPI with a CMS quality score on file — objective federal reporting, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1174596639), first enumerated 02/07/2006.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 84.3/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- 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
Industry payment transparency
$171.99 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Michigan statewide board action statistics are published annually — these figures describe aggregate state activity, not John Heiser, MD's individual license status. Verify directly with the state medical board.
Source: MI-BOM annual report 2023
- 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 1174596639 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-INLINE · BOOK-THIN · PHOTO-FINISH
- NPI-10 1174596639
- ENUM-LEGACY 2006
- TAX-MID 5K Thoracic Surgery
- MIPS-INLINE 84.3/100
- BOOK-THIN 158 in Michigan
- PHOTO-FINISH Daniel Logsdon, MD · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Heiser · this pr…
Heiser · this provider
84.3 MIPS pts
- Daniel Logsdon, …
Daniel Logsdon, MD
84.3 MIPS pts
- Joseph Wilson, M…
Joseph Wilson, MD
84.3 MIPS pts
- Nguyen Le, MD · …
Nguyen Le, MD
84.4 MIPS pts
- Anthony Caffarel…
Anthony Caffarelli, M.D.
84.4 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
John Heiser, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
84 ≥ 42nd percentile 42% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
✓
Board certification likely (heuristic, not verified)
John Heiser, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 John Heiser, MD?
Near national averagePrimary specialty
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
MIPS final score
84.3/100 0.8 pts vs avg
Specialty distribution in Michigan
How Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician compares to other specialties among Michigan providers
Medicare quality performance, MIPS
John Heiser, MD's 2023 MIPS final score plotted against the Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician national average
- MIPS Final Score
- 84.3/100
- vs 83.5 national avg · 2023 performance year
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 | 1174596639 |
|---|---|
| Specialty | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 02/07/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
84.3295
Final Score
Measured-score avg: 83.5
73.1279
Quality
69.5443
Cost
100
Promoting Interoperability
Reporting: Group practice
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 Heiser, MD. Source: openpaymentsdata.cms.gov.
Total received
$172
Largest payer
Medtronic, Inc.
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.
License & disciplinary context - Michigan MI-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 - they are NOT specific to John Heiser, MD. To verify John Heiser, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
More Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in MI →
All providers in Michigan →
Compare specialties →
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Overview
How John Heiser, MD fits within the Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician landscape nationally.
5,174
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in US
52
States with Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
119
Avg Claims per Provider
Nationwide Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Heiser, both outside Michigan so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (84.3 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Heiser.
One of 158 Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers enrolled in Michigan, 5 are shown here.
Frequently Asked Questions
What is John Heiser, MD's specialty? ▼
John Heiser, MD specializes in Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician and practices in Grand Rapids, Michigan. Credentials: MD.
What is John Heiser, MD's Medicare quality score? ▼
John Heiser, MD has a CMS MIPS Final Score of 84.3/100 (Quality: 73.1, Cost: 69.5). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is John Heiser, MD located? ▼
John Heiser, MD is located at 221 MICHIGAN ST NE STE 300, Grand Rapids, MI, 49503. Phone: (616) 459-7258.
What is John Heiser, MD's NPI number? ▼
John Heiser, MD's National Provider Identifier (NPI) is 1174596639, issued on 02/07/2006.
How many Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers are there in the US? ▼
There are 5,174 Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers across 52 states in the US. The average Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider writes 119 Medicare Part D claims per year.
Does John Heiser, MD accept Medicare? ▼
John Heiser, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Heiser, MD's credentials? ▼
John Heiser, MD's NPI is 1174596639 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.
- 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 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.