Dr. Chady Abboud Leon, MD

  • Marshfield, WI
  • Hematologist and oncologist
NPI1770737744PAC ID1658599840
Medicare services, 2024
443
Medicare patients, 2024
201
Part D claims, 2024
779
Publications
2
MIPS score, 2024
93
Practice address
1000 N Oak Ave, Marshfield, WI 54449
Professional email
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Mobile number
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Social profiles

Primary practice

Marshfield Center Ambulatory Surgical Center - HOPD

Acute Care Hospital outpatient department · Marshfield, Wisconsin

See all 14 affiliations

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Dr. Chady Abboud Leon is a hematologist and oncologist in Marshfield, Wisconsin

Dr. Abboud Leon practices at Marshfield Center Ambulatory Surgical Center - HOPD in Marshfield, Wisconsin.

Dr. Abboud Leon's NPI, 1770737744, was assigned on November 4, 2008. Dr. Abboud Leon holds Wisconsin license 62577.

NPI and contact details
Medicare PAC ID
1658599840
NPI enumeration date
November 4, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
50
Medical school graduation
2002

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Chady Abboud Leon practices at Marshfield Center Ambulatory Surgical Center - HOPD in Marshfield, Wisconsin

Dr. Abboud Leon's primary practice is Marshfield Center Ambulatory Surgical Center - HOPD, at 1000 N Oak Ave, Marshfield, WI 54449.

  • Marshfield Center Ambulatory Surgical Center - HOPD
    1000 N Oak Ave, Marshfield, WI 54449

Source: Dmand AI Affiliation Data

Dr. Chady Abboud Leon is affiliated with 10 sites of care and 4 medical groups

Dr. Abboud Leon's primary practice is Marshfield Center Ambulatory Surgical Center - HOPD in Marshfield, Wisconsin. Dr. Abboud Leon is also affiliated with Marshfield Medical Center - Marshfield. The medical group on file is Marshfield Clinic Health System. Dmand AI also links Dr. Abboud Leon to 4 more hospitals, 4 group practices and clinics and 3 medical groups, each named with a free account. Dr. Abboud Leon's employer is on file too: a hospital.

See all 14 affiliations for Dr. Abboud Leon

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Chady Abboud Leon's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Abboud Leon practices, 10 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Marshfield Center Ambulatory Surgical Center - HOPDAvailable with a free account
+9 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Chady Abboud Leon is one of 277 hematologists and oncologists in Wisconsin

Hematology and oncology is Dr. Abboud Leon's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Abboud Leon is licensed in Wisconsin.

Specialties and state licenses

  • Hematology and oncology, WisconsinPrimaryLicense 62577 · taxonomy 207RH0003X

Hematologists and oncologists near Dr. Abboud Leon

Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.

277hematologists and oncologists in Wisconsin
7hematologists and oncologists in Marshfield

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Chady Abboud Leon billed Medicare for 443 services in 2024

CMS data shows 443 Medicare services from Dr. Abboud Leon across 5 procedure codes in 2024, for 201 Medicare patients. Medicare paid $35,984 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024443
Medicare patients201
Paid by Medicare$35,984
Procedure codes5

Dr. Abboud Leon's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 5742024: 44323%

Dr. Abboud Leon compared with the Wisconsin median for hematologists and oncologists, 2024

  • Dr. Abboud Leon
  • Wisconsin median
Medicare services
443vs 54519% below
Medicare patients
201vs 17217% above
Part D claims
585vs 44631% above

Medians across 269 hematologists and oncologists in Wisconsin with Dmand AI profiles that report each measure.

Dr. Abboud Leon's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Abboud Leon

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Chady Abboud Leon treated 201 Medicare patients in 2024, average age 73

CMS counts 201 Medicare patients who saw Dr. Abboud Leon in 2024. The largest group is 65 to 74, with 93 patients. 71% of them have high cholesterol, and 67% have high blood pressure. 18% are also on Medicaid. Their average risk score is 2.02, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Abboud Leon's median patient age at 72, with 62% women.

Medicare patients, 2024201
Average age73
Average risk score2.02
Also on Medicaid18%

Dr. Abboud Leon's Medicare patients by age, 2024

Dr. Abboud Leon's Medicare patients by sex, 2024

  • Women10753%
  • Men9447%

Chronic conditions among Dr. Abboud Leon's Medicare patients, 2024

  1. High cholesterol71%
  2. High blood pressure67%
  3. Cancer50%
  4. Arthritis34%
  5. Chronic kidney disease31%
  6. Diabetes29%
  7. Anxiety25%
  8. Ischemic heart disease25%

Share of Medicare patients with each condition. A patient can have several.

Dr. Abboud Leon's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women62%
  • Men38%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Chady Abboud Leon wrote 779 Medicare Part D claims in 2024

In 2024, Dr. Abboud Leon wrote 779 Medicare Part D claims for 167 patients. 72% of them were for generic drugs. CMS names the drug for 585 of them, across 18 drugs with 11 or more claims each, at $1,282,869 in total drug cost. In 2023, CMS named 370 claims across 15 drugs.

Part D claims, 2024779
Drugs named by CMS18
Total drug cost$1.3M
Part D patients167

Dr. Abboud Leon's Part D claims by kind of drug, 2024

  • Generic562 claims72%
  • Brand-name217 claims28%

Dr. Abboud Leon's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Abboud Leon's Part D claims, 2024

  • Opioids6%48 of 779 claims
  • Antibiotics2%15 of 779 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3702024: 58558%

Drugs named by CMS: 18 in 2024, 15 in 2023.

See all prescribing by Dr. Abboud Leon

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Chady Abboud Leon scored 93 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Abboud Leon for performance year 2024, reported as part of a group. Dr. Abboud Leon accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Abboud Leon as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Abboud Leon's MIPS scores, performance year 2024

  • 93of 100Final score
  • 79of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Chady Abboud Leon has 2 publications on record

Dmand AI links 2 papers to Dr. Abboud Leon in 2023. 2023 was the busiest year, with 2. Dr. Abboud Leon's most frequent co-authors are Rebecca M. Blonsky, MD, Zebi Fatima, MD and Prathima Gopinath, MD.

Papers2

Dr. Abboud Leon's most frequent co-authors

Recent publications by Dr. Abboud Leon

See all 2 publications and co-authors

See who Dr. Abboud Leon researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Abboud Leon works with, so you can find a warm path to the right hematologists and oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Chady Abboud Leon received $181 in industry payments from 2016 to 2019

CMS Open Payments shows 5 general payments to Dr. Abboud Leon from 5 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 53% of the total. Janssen Pharmaceuticals, Inc paid the most, $65.

General payments to Dr. Abboud Leon by program year, 2016 to 2019

General payments to Dr. Abboud Leon by kind, 2016 to 2019

$181in total
  • Food and beverage$9653%
  • Education$8547%

Companies that paid Dr. Abboud Leon the most, 2016 to 2019

Share is of all general payments to this clinician.

See all payments to Dr. Abboud Leon

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Chady Abboud Leon's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Chady Abboud Leon

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Chady Abboud Leon's NPI number?

Dr. Chady Abboud Leon's NPI number is 1770737744. It was assigned on November 4, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Chady Abboud Leon?

Dr. Chady Abboud Leon is a hematologist and oncologist in Marshfield, Wisconsin. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. Chady Abboud Leon practice?

Dr. Abboud Leon practices at 1000 N Oak Ave, Marshfield, WI 54449. Dr. Abboud Leon's primary practice is Marshfield Center Ambulatory Surgical Center - HOPD in Marshfield, Wisconsin. Dmand AI also links Dr. Abboud Leon to 4 hospitals, 4 group practices and clinics and 3 medical groups.

What is Dr. Chady Abboud Leon's medical license number?

Dr. Abboud Leon holds Wisconsin license 62577.

Which hospitals is Dr. Chady Abboud Leon affiliated with?

Dr. Abboud Leon is affiliated with Marshfield Medical Center - Marshfield. Dmand AI links Dr. Abboud Leon to 4 more hospitals.

What medical group is Dr. Chady Abboud Leon part of?

Dr. Abboud Leon is linked to Marshfield Clinic Health System. Dmand AI links Dr. Abboud Leon to 3 more medical groups.

Does Dr. Chady Abboud Leon accept Medicare?

Yes. CMS data shows Dr. Abboud Leon billed Medicare for 443 services in 2024, and Dr. Abboud Leon accepts Medicare assignment.

Does Dr. Chady Abboud Leon offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Abboud Leon as offering telehealth services.

What is Dr. Chady Abboud Leon's MIPS score?

Dr. Abboud Leon's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.

How many Medicare patients does Dr. Chady Abboud Leon see?

CMS counts 201 Medicare patients who saw Dr. Abboud Leon in 2024, with an average age of 73.

Show 6 more questionsShow fewer questions

What services does Dr. Chady Abboud Leon bill to Medicare?

In 2024, Dr. Abboud Leon's most billed Medicare services were office visit, established patient (99215), office visit, established patient (99214) and hospital inpatient care (99233).

What drugs does Dr. Chady Abboud Leon prescribe most?

In 2024 Medicare Part D data, Dr. Abboud Leon's most prescribed drugs by claims were Anastrozole, Eliquis and Tamoxifen Citrate.

Has Dr. Chady Abboud Leon received payments from drug or device companies?

CMS Open Payments shows $181 in general payments to Dr. Abboud Leon from 5 companies from 2016 to 2019. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. Chady Abboud Leon been practicing?

Dr. Abboud Leon graduated from medical school in 2002, 24 years ago.

Does Dr. Chady Abboud Leon do research?

Dmand AI links 2 publications to Dr. Abboud Leon.

Who does Dr. Chady Abboud Leon publish with?

Dr. Abboud Leon's most frequent co-authors are Rebecca M. Blonsky, MD (1 shared paper), Zebi Fatima, MD (1 shared paper) and Prathima Gopinath, MD (1 shared paper).

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