Dr. Abigail Sy Chan, MD

  • Louisville, KY
  • Hematologist and oncologist
NPI1942720719PAC ID3274802152
Medicare services, 2024
323
Medicare patients, 2024
109
Part D claims, 2024
691
Publications
16
MIPS score, 2024
93
Practice address
530 South Jackson Street, Louisville, KY 40202
Practice phone
Call (502) 562-3000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UofL Health - UofL Hospital

Hospital · Louisville, Kentucky

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Dr. Abigail Sy Chan is a hematologist and oncologist in Louisville, Kentucky

Dr. Chan practices at UofL Health - UofL Hospital in Louisville, Kentucky, part of UofL Health.

Dr. Chan's NPI, 1942720719, was assigned on June 22, 2017. Dr. Chan holds Kentucky license 54059.

NPI and contact details
Medicare PAC ID
3274802152
NPI enumeration date
June 22, 2017
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(502) 562-3000
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
37
Medical school graduation
2015

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

Dr. Abigail Sy Chan practices at UofL Health - UofL Hospital in Louisville, Kentucky

Dr. Chan's primary practice is UofL Health - UofL Hospital, at 530 South Jackson Street, Louisville, KY 40202 in Jefferson County. The practice phone is (502) 562-3000.

Source: Dmand AI Affiliation Data

Dr. Abigail Sy Chan is affiliated with 2 sites of care and 1 medical group

Dr. Chan's primary practice is UofL Health - UofL Hospital in Louisville, Kentucky, part of UofL Health. Dr. Chan is also affiliated with UofL Health - Jewish Hospital. The medical group on file is UofL Physicians, Radiology.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Abigail Sy Chan's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chan practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UofL Health - UofL HospitalAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Abigail Sy Chan is one of 150 hematologists and oncologists in Kentucky

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

Specialties and state licenses

  • Hematology and oncology, KentuckyPrimaryLicense 54059 · taxonomy 207RH0003X

Hematologists and oncologists near Dr. Chan

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

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

Dr. Abigail Sy Chan billed Medicare for 323 services in 2024

CMS data shows 323 Medicare services from Dr. Chan across 6 procedure codes in 2024, for 109 Medicare patients. Medicare paid $25,424 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024323
Medicare patients109
Paid by Medicare$25,424
Procedure codes6

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

  • 2023
  • 2024
Office and hospital visits
2023: 1092024: 286162%
Other services
2023: 02024: 37

Dr. Chan compared with the Kentucky median for hematologists and oncologists, 2024

  • Dr. Chan
  • Kentucky median
Medicare services
323vs 87163% below
Medicare patients
109vs 27460% below
Part D claims
474vs 83243% below

Medians across 145 hematologists and oncologists in Kentucky with Dmand AI profiles that report each measure.

Dr. Chan'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. Chan

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

Dr. Abigail Sy Chan treated 109 Medicare patients in 2024, average age 71

CMS counts 109 Medicare patients who saw Dr. Chan in 2024. The largest group is 65 to 74, with 58 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 2.30, 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. Chan's median patient age at 68, with 43% women.

Medicare patients, 2024109
Average age71
Average risk score2.30
Also on Medicaid20%

Dr. Chan's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Chan's Medicare patients by sex, 2024

  • Women4138%
  • Men6862%

Chronic conditions among Dr. Chan's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis46%
  4. Ischemic heart disease46%
  5. Cancer44%
  6. Chronic kidney disease42%
  7. Diabetes38%
  8. Mood disorders35%

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

Dr. Chan's patients across all payers

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

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women43%
  • Men56%

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

Dr. Abigail Sy Chan wrote 691 Medicare Part D claims in 2024

In 2024, Dr. Chan wrote 691 Medicare Part D claims for 89 patients. 89% of them were for generic drugs. CMS names the drug for 474 of them, across 17 drugs with 11 or more claims each, at $45,116 in total drug cost. In 2023, CMS named 131 claims across 5 drugs.

Part D claims, 2024691
Drugs named by CMS17
Total drug cost$45,116
Part D patients89

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

  • Generic612 claims89%
  • Brand-name and other79 claims11%

Dr. Chan'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. Chan's Part D claims, 2024

  • Opioids24%168 of 691 claims
  • Antibiotics2%16 of 691 claims
  • Antipsychotics, patients 65 and over2%14 of 691 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: 1312024: 474262%

Drugs named by CMS: 17 in 2024, 5 in 2023.

See all prescribing by Dr. Chan

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. Abigail Sy Chan 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. Chan for performance year 2024, reported as part of a group. Dr. Chan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Chan's MIPS scores, performance year 2024

  • 93of 100Final score
  • 85.9of 100Quality
  • 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

For MedTech and pharma teams

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Dr. Abigail Sy Chan has 16 publications on record

Dmand AI links 16 papers to Dr. Chan, published from 2018 to 2025. 2020 was the busiest year, with 5. The most frequent topics are Antineoplastic Agents, Immunological and Immune Checkpoint Inhibitors. Dr. Chan has published most often in J Hematol. Dr. Chan's most frequent co-authors are Rohit Kumar, MD, Shruti Bhandari, MD and Adriana Medina, MD.

Papers16
Years published2018 to 2025

Dr. Chan's papers by year, 2018 to 2025

Topics Dr. Chan writes about most

  • Antineoplastic Agents, Immunological
  • Immune Checkpoint Inhibitors

Dr. Chan's most frequent co-authors

Recent publications by Dr. Chan

See all 16 publications and co-authors

See who Dr. Chan researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chan 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. Abigail Sy Chan received $7,574 in industry payments from 2020 to 2025

CMS Open Payments shows 288 general payments to Dr. Chan from 43 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 87% of the total. Amgen Inc. paid the most, $1,090.

General payments to Dr. Chan by program year, 2020 to 2025

General payments to Dr. Chan by kind, 2020 to 2025

$7.6Kin total
  • Food and beverage$6,61887%
  • Education$95613%

Companies that paid Dr. Chan the most, 2020 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Chan

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

Sources for Dr. Abigail Sy Chan'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 DataDmand AI Org Hierarchy 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. Abigail Sy Chan

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. Abigail Sy Chan's NPI number?

Dr. Abigail Sy Chan's NPI number is 1942720719. It was assigned on June 22, 2017, and it is active in the NPI Registry.

What kind of doctor is Dr. Abigail Sy Chan?

Dr. Abigail Sy Chan is a hematologist and oncologist in Louisville, Kentucky. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. Abigail Sy Chan practice?

Dr. Chan practices at 530 South Jackson Street, Louisville, KY 40202. Dr. Chan's primary practice is UofL Health - UofL Hospital in Louisville, Kentucky, part of UofL Health.

What is Dr. Abigail Sy Chan's office phone number?

The practice phone on file for Dr. Chan is (502) 562-3000.

What is Dr. Abigail Sy Chan's medical license number?

Dr. Chan holds Kentucky license 54059.

Which hospitals is Dr. Abigail Sy Chan affiliated with?

Dr. Chan practices at UofL Health - UofL Hospital in Louisville, Kentucky. Dr. Chan is also affiliated with UofL Health - Jewish Hospital.

What medical group is Dr. Abigail Sy Chan part of?

Dr. Chan is linked to UofL Physicians, Radiology.

Does Dr. Abigail Sy Chan accept Medicare?

Yes. CMS data shows Dr. Chan billed Medicare for 323 services in 2024, and Dr. Chan accepts Medicare assignment.

What is Dr. Abigail Sy Chan's MIPS score?

Dr. Chan'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. Abigail Sy Chan see?

CMS counts 109 Medicare patients who saw Dr. Chan in 2024, with an average age of 71.

Show 6 more questionsShow fewer questions

What services does Dr. Abigail Sy Chan bill to Medicare?

In 2024, Dr. Chan's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and medicare service (G2211).

What drugs does Dr. Abigail Sy Chan prescribe most?

In 2024 Medicare Part D data, Dr. Chan's most prescribed drugs by claims were Oxycodone HCl, Dexamethasone and Ondansetron HCl.

Has Dr. Abigail Sy Chan received payments from drug or device companies?

CMS Open Payments shows $7,574 in general payments to Dr. Chan from 43 companies from 2020 to 2025. The largest total came from Amgen Inc.

How long has Dr. Abigail Sy Chan been practicing?

Dr. Chan graduated from medical school in 2015, 11 years ago.

Does Dr. Abigail Sy Chan do research?

Dmand AI links 16 publications to Dr. Chan, published from 2018 to 2025.

Who does Dr. Abigail Sy Chan publish with?

Dr. Chan's most frequent co-authors are Rohit Kumar, MD (3 shared papers), Shruti Bhandari, MD (2 shared papers) and Adriana Medina, MD (2 shared papers).

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