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2026 NPPES data Hematology & Oncology Physician NPI 1639631146 MD
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Peyton Reves, MD

Hematology & Oncology 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 11,530 in Hematology & Oncology 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
48
Medicare Part D claims · 31 beneficiaries · Hematology & Oncology Physician avg: 885
MIPS score
69.8/100
▼ 14 pts below national avg 83.5 · Mid-tier
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Peyton Reves, MD reported a CMS MIPS final score of 69.8/100 - below the 83.5 national average - and filed 48 Medicare Part D claims in 2024.

69.8/100
MIPS score · -14 vs avg
48
Part D claims, 2024
Likely
board-certified (heuristic)
≥8th
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 Peyton Reves, MD

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1639631146), first enumerated 04/03/2019.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 48 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 69.8/100 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.

    Source: NUCC taxonomy + CMS participation heuristic

  • 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 1639631146 · Hematology & Oncology Physician

NPI-10 · ENUM-RECENT · TAX-MID · MIPS-LOW · RX-TRACE · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1639631146
  • ENUM-RECENT 2019
  • TAX-MID 12K Hematology &
  • MIPS-LOW 69.8/100
  • RX-TRACE 48
  • BOOK-THIN 233 in Wisconsin
  • PHOTO-FINISH Barbara Craft, MD · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Peyton Reves, 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.

70 ≥ 8th percentile 8% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). This entry sits in this band. 70–80: 94,570 measured providers (21%). Above this entry. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

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

Where Peyton Reves, MD sits

This provider among hematology & oncology physician peers

Across the 4,019 hematology & oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Peyton Reves, MD writes more Part D claims than 4% of them and scores higher on MIPS quality than 6% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 68Peyton Reves, MD, Part D claim volume, percentile in specialty: 4 · MIPS quality, percentile: 6
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one hematology & oncology physician peer from a representative sample of 60; the gold marker is Peyton Reves, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Peyton Reves, 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 Peyton Reves, MD?

Below national average

NPI registry status

Active

Issued 04/03/2019

NPI 1639631146

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,530 US NPIs in this specialty

Medicare Part D claims

48 95% vs specialty avg

2024 prescription claims

Specialty avg: 885

MIPS final score

69.8/100 13.7 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in Wisconsin

How Hematology & Oncology Physician compares to other specialties among Wisconsin providers

Wisconsin providers
Physical Therapist5.5%Registered Nurse4.7%Pharmacist4.6%Student in an Organized Heal…3.4%Professional Counselor3.3%Speech-Language Pathologist3.2%Hematology & Oncology Physic…0.2%
Largest specialties in Wisconsin (% of in-state providers)

Medicare quality performance, MIPS

Peyton Reves, MD's 2023 MIPS final score plotted against the Hematology & Oncology Physician national average

Below national average
MIPS Final Score
69.8/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%69.8%
MIPS final score (Hematology & Oncology Physician) - 69.8/100 vs national avg 83.5
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

600 HIGHLAND AVE
Madison, WI 53792
(601) 984-5601

Provider Details

NPI 1639631146
Specialty Hematology & Oncology Physician
Credentials MD
Gender Female
NPI Issued 04/03/2019

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

69.8394
Final Score
Measured-score avg: 83.5
56.0824
Quality
48.3115
Cost
83
Promoting Interoperability

Reporting: Group practice

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

48
Total Claims
$46K
Total Drug Cost
31
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
48
Total Day Supply
906
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
70.2 years
Avg HCC Risk Score
1.81
More Hematology & Oncology Physician in WI → All providers in Wisconsin → Compare specialties →

Hematology & Oncology Physician Overview

How Peyton Reves, MD fits within the Hematology & Oncology Physician landscape nationally.

11,530
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
885
Avg Claims per Provider

Peyton Reves, MD's 48 claims are below the specialty average of 885.

Nationwide Hematology & Oncology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Reves, both outside Wisconsin so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (69.8 here).

Barbara Craft 69.8 MS Hillary Daugherty 69.8 MS Dennis Morgan 69.8 MS Grace Shumaker 69.8 MS

Same NPPES enumeration year (2019)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Mark Forsberg Los Angeles, CA Paul Sackstein Upper Marlboro, MD Ishan Tatake Boston, MA Michael Lee San Jose, CA

Nearby Hematology & Oncology Physician Providers in Wisconsin

Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Reves.

One of 233 Hematology & Oncology Physician providers enrolled in Wisconsin, 5 are shown here.

Dr. Chady Abboud Leon
M.D.
Marshfield, WI
Dr. Rami Abumasmah
MD
Oshkosh, WI
Dr. Kalid Adab
MD
Milwaukee, WI
Dr. Jacob Adashek
DO
Germantown, WI
Dr. Gulrayz Ahmed
M.D.
Milwaukee, WI

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Peyton Reves, MD's specialty? ▼
Peyton Reves, MD specializes in Hematology & Oncology Physician and practices in Madison, Wisconsin. Credentials: MD.
How much does Peyton Reves, MD prescribe under Medicare Part D? ▼
In 2024, Peyton Reves, MD wrote 48 Medicare Part D claims totaling $46K in drug costs for 31 beneficiaries.
What is Peyton Reves, MD's Medicare quality score? ▼
Peyton Reves, MD has a CMS MIPS Final Score of 69.8/100 (Quality: 56.1, Cost: 48.3). 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 Peyton Reves, MD located? ▼
Peyton Reves, MD is located at 600 HIGHLAND AVE, Madison, WI, 53792. Phone: (601) 984-5601.
What is Peyton Reves, MD's NPI number? ▼
Peyton Reves, MD's National Provider Identifier (NPI) is 1639631146, issued on 04/03/2019.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,530 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 885 Medicare Part D claims per year.
Does Peyton Reves, MD accept Medicare? ▼
Peyton Reves, MD appears in CMS Medicare data with 48 Part D claims and 31 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Peyton Reves, MD's credentials? ▼
Peyton Reves, MD's NPI is 1639631146 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.
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

Compiled from official public sources by the editorial process.

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.