NPI registry status
Active
2026 NPPES data Gastroenterology Physician NPI 1215399381
Verify on CMS → Adam Van Huis
Gastroenterology Physician in Milwaukee, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,567 in Gastroenterology 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
136
Medicare Part D claims · 90 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
69%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
82/100
▼ 1 pts below national avg 83.1 · Above neutral
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
Adam Van Huis reported a CMS MIPS final score of 82/100 - below the 83.1 national average - and filed 136 Medicare Part D claims in 2023.
- 82/100
- MIPS score · -1 vs avg
- 136
- Part D claims, 2023
- 69%
- 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.
Adam Van Huis's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
82 36th percentile higher than 36% 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 Adam Van Huis sits
This provider among gastroenterology physician peers
Across the 5,957 gastroenterology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Adam Van Huis writes more Part D claims than 11% of them and scores higher on MIPS quality than 43% - placing this provider in the lower-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 gastroenterology physician peer from a representative sample of 60; the gold marker is Adam Van Huis. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Adam Van Huis practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 hospital affiliations - 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 Adam Van Huis?
Near national averagePrimary specialty
Gastroenterology Physician
Medicare Part D claims
136 84% vs specialty avg
MIPS final score
82/100 1.1 pts vs avg
Specialty distribution in Wisconsin
How Gastroenterology Physician compares to other specialties among Wisconsin providers
Medicare quality performance, MIPS
Adam Van Huis's 2023 MIPS final score plotted against the Gastroenterology Physician national average
- MIPS Final Score
- 82/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Gastroenterology Physician) - 82/100 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).
Adam Van Huis appears in the CMS NPPES registry as a Gastroenterology Physician provider at 2801 W KINNICKINNIC RIVER PKWY STE 1080, Milwaukee, WI, 53215, with a listed phone of (414) 908-6506. NPI 1215399381 was issued on 03/28/2016.
Medicare Part D records for calendar year 2023 show 136 prescription claims written by this provider, covering 90 Medicare beneficiaries and totaling roughly $12K in drug spend, split 31% brand-name and 69% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 82/100 for the 2023 performance year (Quality 68.7, Cost 75.2), compared with the national average of 83.1.
Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 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 | 1215399381 |
|---|---|
| Specialty | Gastroenterology Physician |
| Gender | Male |
| NPI Issued | 03/28/2016 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
81.992
Final Score
Avg: 83.1
68.7395
Quality
75.1603
Cost
83
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Adam Van Huis 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.
According to CMS billing records, Adam Van Huis is affiliated with 3 Medicare-billing facilities.
Gastroenterology Specialists SC
Waukesha, WI
GI Associates LLC
Wauwatosa, WI
Milwaukee GI Specialists SC
Wauwatosa, WI
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 · Above average
Adam Van Huis - brand share 31.0%
Gastroenterology Physician average
31% brand-name claims vs 69% generic, on 136 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.
136
Total Claims
$12K
Total Drug Cost
90
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 177
- Total Day Supply
- 3,297
- Brand vs Generic
- 31% brand / 69% generic
- Brand Drug Cost
- $7K
- Generic Drug Cost
- $4K
Patient Demographics
- Average Patient Age
- 71.9 years
- Avg HCC Risk Score
- 1.34
- Gender Split
- 58% female / 42% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Omeprazole | 15 |
| Lubiprostone | 12 |
| Gavilyte-G "Peg3350/Sod Sulf | N/A |
| Sod Sulf-Potass Sulf-Mag Sulf "Sodium | N/A |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gastroenterology Physician Overview
How Adam Van Huis fits within the Gastroenterology Physician landscape nationally.
16,567
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider
Adam Van Huis's 136 claims are below the specialty average of 833.
Nearby Gastroenterology Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Van Huis.
Dr. Frank Aberger
MD
La Crosse, WI
Dr. Aboud Affi
M.D.
Milwaukee, WI
Dr. Banke Agarwal
MD
La Crosse, WI
Dr. Parul Agarwal
M.D.
Madison, WI
Dr. Dilpesh Agrawal
M.D, MRCP
Milwaukee, WI
Compare Gastroenterology 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 Wisconsin medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Gastroenterology 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.
Healthcare Guides
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Medical Specialties Explained
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Frequently Asked Questions
What is Adam Van Huis's specialty? ▼
Adam Van Huis specializes in Gastroenterology Physician and practices in Milwaukee, Wisconsin.
How much does Adam Van Huis prescribe under Medicare Part D? ▼
In 2023, Adam Van Huis wrote 136 Medicare Part D claims totaling $12K in drug costs for 90 beneficiaries.
What is Adam Van Huis's Medicare quality score? ▼
Adam Van Huis has a CMS MIPS Final Score of 82/100 (Quality: 68.7, Cost: 75.2). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Adam Van Huis located? ▼
Adam Van Huis is located at 2801 W KINNICKINNIC RIVER PKWY STE 1080, Milwaukee, WI, 53215. Phone: (414) 908-6506.
What is Adam Van Huis's NPI number? ▼
Adam Van Huis's National Provider Identifier (NPI) is 1215399381, issued on 03/28/2016.
Does Adam Van Huis prescribe more brand-name or generic drugs? ▼
Adam Van Huis's prescribing is 31% brand-name and 69% generic drugs by claim count, with $7K in brand drug costs.
How many Gastroenterology Physician providers are there in the US? ▼
There are 16,567 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does Adam Van Huis prescribe most often? ▼
Based on 2023 Medicare Part D data, Adam Van Huis's most frequently prescribed drugs include Omeprazole, Lubiprostone, Gavilyte-G. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Adam Van Huis accept Medicare? ▼
Adam Van Huis appears in CMS Medicare data with 136 Part D claims and 90 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Adam Van Huis's credentials? ▼
Adam Van Huis's NPI is 1215399381. 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.