Cato Chan

  • Orange, CA
  • Diagnostic radiologist
NPI1477084648PAC ID1355707597
Medicare services, 2024
685
Medicare patients, 2024
627
Publications
18
MIPS score, 2024
94
Hospital affiliations
2
Practice address
101 City Drive South, Orange, CA 92868
Practice phone
Call (714) 456-7890
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UCI Health - Orange

Hospital · Orange, California

See all 4 affiliations

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Cato Chan is a diagnostic radiologist in Orange, California

Cato Chan practices at UCI Health - Orange in Orange, California, part of UC Irvine.

Cato Chan's NPI, 1477084648, was assigned on March 21, 2017. Cato Chan graduated from Keck School of Medicine of USC in 2018. Cato Chan's California license number on file is A164353.

NPI and contact details
Medicare PAC ID
1355707597
NPI enumeration date
March 21, 2017
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(714) 456-7890
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
34
Medical school graduation
2018

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

Cato Chan practices at UCI Health - Orange in Orange, California

Cato Chan's primary practice is UCI Health - Orange, at 101 City Drive South, Orange, CA 92868 in Orange County. The practice phone is (714) 456-7890.

  • UCI Health - Orange
    101 City Drive South, Orange, CA 92868 · Orange CountyPhone(714) 456-7890

Source: Dmand AI Affiliation Data

Cato Chan is affiliated with 2 sites of care and 2 medical groups

Cato Chan's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. Cato Chan is also affiliated with Hoag Hospital Newport Beach. The medical group on file is Martin Luther King Jr. Community Medical Group. Dmand AI also links Cato Chan to 1 more medical group, named with a free account.

See all 4 affiliations for Cato Chan

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

Dmand AI tracks the EHR system at Cato Chan's practice

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

EHR by site
SiteEHR vendor and product
UCI Health - OrangeAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Cato Chan is one of 4,096 diagnostic radiologists in California

Diagnostic radiology is Cato Chan's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Cato Chan is board certified in diagnostic radiology by the American Board of Radiology. Cato Chan has a license on file in California.

Specialties and state licenses

  • Diagnostic radiology, CaliforniaPrimaryLicense A164353 · 2019 to 2025 · taxonomy 2085R0202X

Diagnostic radiologists near Cato Chan

Counts of diagnostic radiologists 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

Cato Chan billed Medicare for 685 services in 2024

CMS data shows 685 Medicare services from Cato Chan across 7 procedure codes in 2024, for 627 Medicare patients. Medicare paid $29,106 for them.

Medicare services, 2024685
Medicare patients627
Paid by Medicare$29,106
Procedure codes7

Cato Chan's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 502024: 6851270%

Where Cato Chan's Medicare services took place, 2024

  • In an office10015%
  • In a facility58585%

Cato Chan compared with the California median for diagnostic radiologists, 2024

  • Cato Chan
  • California median
Medicare services
685vs 2,28170% below
Medicare patients
627vs 1,34653% below

Medians across 3,734 diagnostic radiologists in California with Dmand AI profiles that report each measure.

Cato 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 Cato Chan

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

Cato Chan treated 627 Medicare patients in 2024, average age 74

CMS counts 627 Medicare patients who saw Cato Chan in 2024. The largest group is 65 to 74, with 234 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 52% are also on Medicaid. Their average risk score is 2.37, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Cato Chan's median patient age at 62, with 47% women.

Medicare patients, 2024627
Average age74
Average risk score2.37
Also on Medicaid52%

Cato Chan's Medicare patients by age, 2024

Cato Chan's Medicare patients by sex, 2024

  • Women29747%
  • Men33053%

Chronic conditions among Cato Chan's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis51%
  4. Diabetes46%
  5. Ischemic heart disease44%
  6. Chronic kidney disease39%
  7. Heart failure33%
  8. COPD31%

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

Cato 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 62

Patient panel by sex, all payers

  • Women47%
  • Men52%

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

Cato Chan scored 94 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Cato Chan for performance year 2024, reported through an alternative payment model (APM). Cato Chan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Cato Chan's MIPS scores, performance year 2024

  • 94of 100Final score
  • 80.4of 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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Cato Chan has 18 publications on record

Dmand AI links 18 papers to Cato Chan, published from 2013 to 2023. 2013 was the busiest year, with 6. The most frequent topics are Cisplatin, Head and Neck Neoplasms and Radiography. Cato Chan's most frequent co-authors are Quynh-Thu Xuan Le, MD, Wendy Hara, MD and Christina Suzan Kong, MD.

Papers18
Years published2013 to 2023

Cato Chan's papers by year, 2013 to 2023

Topics Cato Chan writes about most

  • Cisplatin
  • Head and Neck Neoplasms
  • Radiography
  • Salivary Gland Neoplasms

Cato Chan's most frequent co-authors

Recent publications by Cato Chan

See all 18 publications and co-authors

See who Cato Chan researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Cato Chan works with, so you can find a warm path to the right diagnostic radiologists.

How network discovery works

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

Cato Chan graduated from Keck School of Medicine of USC

Cato Chan graduated from Keck School of Medicine of USC in 2018.

  1. Medical schoolKeck School of Medicine of USC
  2. Board certified in diagnostic radiologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Cato Chan accepts plans from 4 insurance carriers

Cato Chan is in network with 4 carriers, including United Healthcare, Blue Cross and Blue Shield of Kansas City and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • United Healthcare
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • NV State Medicaid

Plan types Cato Chan accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicaid1
  4. Medicare1
  5. POS1

Source: Dmand AI Insurance Network Data

Sources for Cato 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)
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
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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 Cato 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 Cato Chan's NPI number?

Cato Chan's NPI number is 1477084648. It was assigned on March 21, 2017, and it is active in the NPI Registry.

What does Cato Chan specialize in?

Cato Chan is a diagnostic radiologist in Orange, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).

Where does Cato Chan practice?

Cato Chan practices at 101 City Drive South, Orange, CA 92868. Cato Chan's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. Dmand AI also links Cato Chan to 1 medical group.

What is Cato Chan's office phone number?

The practice phone on file for Cato Chan is (714) 456-7890.

What is Cato Chan's medical license number?

Cato Chan's California license number on file is A164353.

Which hospitals is Cato Chan affiliated with?

Cato Chan practices at UCI Health - Orange in Orange, California. Cato Chan is also affiliated with Hoag Hospital Newport Beach.

What medical group is Cato Chan part of?

Cato Chan is linked to Martin Luther King Jr. Community Medical Group. Dmand AI links Cato Chan to 1 more medical group.

Does Cato Chan accept Medicare?

Yes. CMS data shows Cato Chan billed Medicare for 685 services in 2024, and Cato Chan accepts Medicare assignment.

What is Cato Chan's MIPS score?

Cato Chan's MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Cato Chan see?

CMS counts 627 Medicare patients who saw Cato Chan in 2024, with an average age of 74.

Show 7 more questionsShow fewer questions

Is Cato Chan board certified?

Yes. Cato Chan is board certified in diagnostic radiology by the American Board of Radiology.

What services does Cato Chan bill to Medicare?

In 2024, Cato Chan's most billed Medicare services were diagnostic imaging (71250), diagnostic imaging (71275) and diagnostic imaging (71045).

Where did Cato Chan go to medical school?

Cato Chan graduated from Keck School of Medicine of USC in 2018.

How long has Cato Chan been practicing?

Cato Chan graduated from medical school in 2018, 8 years ago.

Does Cato Chan do research?

Dmand AI links 18 publications to Cato Chan, published from 2013 to 2023.

Who does Cato Chan publish with?

Cato Chan's most frequent co-authors are Quynh-Thu Xuan Le, MD (5 shared papers), Wendy Hara, MD (3 shared papers) and Christina Suzan Kong, MD (3 shared papers).

What insurance does Cato Chan accept?

Cato Chan is in network with 4 carriers, including United Healthcare, Blue Cross and Blue Shield of Kansas City and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

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