NPI registry status
Active
2026 NPPES data Clinical & Laboratory Immunology (Allergy & Immunology) Physician NPI 1396132619 M.D.
Verify on CMS → Michael Kessler, M.D.
Clinical & Laboratory Immunology (Allergy & Immunology) Physician in Madison, 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 97 in Clinical & Laboratory Immunology (Allergy & Immunology) 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
182
Medicare Part D claims · 35 beneficiaries · Clinical & Laboratory Immunology (Allergy & Immunology) Physician avg: 701
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
77.4/100
▼ 6 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
Michael Kessler, M.D. reported a CMS MIPS final score of 77.4/100 - below the 83.1 national average - and filed 182 Medicare Part D claims in 2023.
- 77.4/100
- MIPS score · -6 vs avg
- 182
- Part D claims, 2023
- 90%
- 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.
Michael Kessler, 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
77 24th percentile higher than 24% 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 Michael Kessler, M.D. sits
This provider among clinical & laboratory immunology (allergy & immunology) physician peers
Across the 14 clinical & laboratory immunology (allergy & immunology) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Michael Kessler, M.D. writes more Part D claims than 7% of them and scores higher on MIPS quality than 57% - placing this provider in the lower-volume, high-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 clinical & laboratory immunology (allergy & immunology) physician peer from a representative sample of 13; the gold marker is Michael Kessler, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Michael Kessler, 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 Michael Kessler, M.D.?
Below national averagePrimary specialty
Clinical & Laboratory Immunology (Allergy & Immunology) Physician
Medicare Part D claims
182 74% vs specialty avg
MIPS final score
77.4/100 5.7 pts vs avg
Specialty distribution in Wisconsin
How Clinical & Laboratory Immunology (Allergy & Immunology) Physician compares to other specialties among Wisconsin providers
Medicare quality performance, MIPS
Michael Kessler, M.D.'s 2023 MIPS final score plotted against the Clinical & Laboratory Immunology (Allergy & Immunology) Physician national average
- MIPS Final Score
- 77.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Clinical & Laboratory Immunology (Allergy & Immunology) Physician) - 77.4/100 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).
Michael Kessler, M.D. appears in the CMS NPPES registry as a Clinical & Laboratory Immunology (Allergy & Immunology) Physician provider holding M.D. credentials at 600 HIGHLAND AVE, Madison, WI, 53792, with a listed phone of (608) 263-0946. NPI 1396132619 was issued on 04/24/2015.
Medicare Part D records for calendar year 2023 show 182 prescription claims written by this provider, covering 35 Medicare beneficiaries and totaling roughly $150K in drug spend, split 10% brand-name and 90% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77.4/100 for the 2023 performance year (Quality 81.8, Cost 62.1), compared with the national average of 83.1.
Clinical & Laboratory Immunology (Allergy & Immunology) Physician is a narrow specialty nationwide, with 97 enrolled providers across 29 states and an average of 701 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 | 1396132619 |
|---|---|
| Specialty | Clinical & Laboratory Immunology (Allergy & Immunology) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 04/24/2015 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
77.4384
Final Score
Avg: 83.1
81.8371
Quality
62.1241
Cost
77
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Michael Kessler, 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.
University OF Wisconsin Medical Foundation Inc
Madison, 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 · Typical
Michael Kessler, M.D. - brand share 10.0%
Clinical & Laboratory Immunology (Allergy & Immunology) Physician average
10% brand-name claims vs 90% generic, on 182 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.
182
Total Claims
$150K
Total Drug Cost
35
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 198
- Total Day Supply
- 4,210
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $81K
- Generic Drug Cost
- $70K
- Antibiotic Claims
- 134
Patient Demographics
- Average Patient Age
- 67.6 years
- Avg HCC Risk Score
- 2.33
- Gender Split
- 46% female / 54% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Kessler, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amoxicillin
Amoxicillin
40 claims
- Doxycycline Hyclate
Doxycycline Hyclate
17 claims
- Zerbaxa 15
Zerbaxa
15 claims
- Ceftriaxone 12
Ceftriaxone
12 claims
- Fluconazole 12
Fluconazole
12 claims
| Drug | Claims |
|---|---|
| Amoxicillin | 40 |
| Doxycycline Hyclate | 17 |
| Zerbaxa Ceftolozane/Tazobactam | 15 |
| Ceftriaxone Ceftriaxone Sodium | 12 |
| Fluconazole | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Clinical & Laboratory Immunology (Allergy & Immunology) Physician in WI →
All providers in Wisconsin →
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Clinical & Laboratory Immunology (Allergy & Immunology) Physician Overview
How Michael Kessler, M.D. fits within the Clinical & Laboratory Immunology (Allergy & Immunology) Physician landscape nationally.
97
Clinical & Laboratory Immunology (Allergy & Immunology) Physician Providers in US
29
States with Clinical & Laboratory Immunology (Allergy & Immunology) Physician
701
Avg Claims per Provider
Michael Kessler, M.D.'s 182 claims are below the specialty average of 701.
Nearby Clinical & Laboratory Immunology (Allergy & Immunology) Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Kessler.
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 Clinical & Laboratory Immunology (Allergy & Immunology) 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 Michael Kessler, M.D.'s specialty? ▼
Michael Kessler, M.D. specializes in Clinical & Laboratory Immunology (Allergy & Immunology) Physician and practices in Madison, Wisconsin. Credentials: M.D..
How much does Michael Kessler, M.D. prescribe under Medicare Part D? ▼
In 2023, Michael Kessler, M.D. wrote 182 Medicare Part D claims totaling $150K in drug costs for 35 beneficiaries.
What is Michael Kessler, M.D.'s Medicare quality score? ▼
Michael Kessler, M.D. has a CMS MIPS Final Score of 77.4/100 (Quality: 81.8, Cost: 62.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Michael Kessler, M.D. located? ▼
Michael Kessler, M.D. is located at 600 HIGHLAND AVE, Madison, WI, 53792. Phone: (608) 263-0946.
What is Michael Kessler, M.D.'s NPI number? ▼
Michael Kessler, M.D.'s National Provider Identifier (NPI) is 1396132619, issued on 04/24/2015.
Does Michael Kessler, M.D. prescribe more brand-name or generic drugs? ▼
Michael Kessler, M.D.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $81K in brand drug costs.
How many Clinical & Laboratory Immunology (Allergy & Immunology) Physician providers are there in the US? ▼
There are 97 Clinical & Laboratory Immunology (Allergy & Immunology) Physician providers across 29 states in the US. The average Clinical & Laboratory Immunology (Allergy & Immunology) Physician provider writes 701 Medicare Part D claims per year.
What drugs does Michael Kessler, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Kessler, M.D.'s most frequently prescribed drugs include Amoxicillin, Doxycycline Hyclate, Zerbaxa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Kessler, M.D. accept Medicare? ▼
Michael Kessler, M.D. appears in CMS Medicare data with 182 Part D claims and 35 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Kessler, M.D.'s credentials? ▼
Michael Kessler, M.D.'s NPI is 1396132619 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.