Dr. Chuck Chan, DO
- Medicare services, 2024
- 469
- Medicare patients, 2024
- 380
- Part D claims, 2024
- 183
- Publications
- 2
- Hospital affiliations
- 2
- Practice address
- 101 City Drive South, Orange, CA 92868
- Practice phone
- Call (714) 456-7890
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Chuck Chan is an emergency medicine physician in Orange, California
Dr. Chan practices at UCI Health - Orange in Orange, California, part of UC Irvine.
Dr. Chan's NPI, 1841877222, was assigned on March 24, 2021. Dr. Chan graduated from WesternU College of Osteopathic Medicine of the Pacific in 2021. Dr. Chan holds Illinois license 036.167218.
- NPI
- 1841877222NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052713070
- NPI enumeration date
- March 24, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 456-7890
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Chuck Chan practices at UCI Health - Orange in Orange, California
Dr. 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 - Orange101 City Drive South, Orange, CA 92868 · Orange CountyPhone(714) 456-7890
Source: Dmand AI Affiliation Data
Dr. Chuck Chan is affiliated with 2 sites of care and 5 medical groups
Dr. Chan's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. Dr. Chan is also affiliated with University of Illinois Hospital. The medical group on file is UCI Health Anesthesia & Perioperative Care Services. Dmand AI also links Dr. Chan to 4 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Chuck 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.
| Site | EHR vendor and product |
|---|---|
| UCI Health - Orange | Available with a free account |
| +1 more site and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Chuck Chan is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Chan's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Chan is board certified in 2024 - 2026 by the CA State License. Dr. Chan is licensed in Illinois.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
Emergency medicine physicians near Dr. Chan
Counts of emergency medicine physicians 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. Chuck Chan billed Medicare for 469 services in 2024
CMS data shows 469 Medicare services from Dr. Chan across 5 procedure codes in 2024, for 380 Medicare patients. Medicare paid $51,382 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chan's Medicare services by type, 2024
- Office and hospital visits344
- Tests and treatments125
Dr. Chan compared with the California median for emergency medicine physicians, 2024
- Dr. Chan
- California median
- Medicare services
- 469vs 26577% above
- Medicare patients
- 380vs 24356% above
- Part D claims
- 71vs 6215% above
Medians across 7,079 emergency medicine physicians in California 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.
Need commercial claims for Dr. Chan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chan and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Chuck Chan treated 380 Medicare patients in 2024, average age 76
CMS counts 380 Medicare patients who saw Dr. Chan in 2024. The largest group is 75 to 84, with 126 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 2.29, 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 61, with 56% women.
Dr. Chan's Medicare patients by age, 2024
Dr. Chan's Medicare patients by sex, 2024
- Women20454%
- Men17646%
Chronic conditions among Dr. Chan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Chronic kidney disease47%
- Ischemic heart disease47%
- Diabetes45%
- Heart failure41%
- Anxiety40%
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 61
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Chuck Chan wrote 183 Medicare Part D claims in 2024
In 2024, Dr. Chan wrote 183 Medicare Part D claims for 131 patients. 97% of them were for generic drugs. CMS names the drug for 71 of them, across 5 drugs with 11 or more claims each, at $530 in total drug cost.
Dr. Chan's Part D claims by kind of drug, 2024
- Generic178 claims97%
- Brand-name and other5 claims3%
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
- Opioids13%24 of 183 claims
- Antibiotics29%53 of 183 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How Dr. Chuck Chan takes part in Medicare
Dr. Chan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Chuck Chan has 2 publications on record
Dmand AI links 2 papers to Dr. Chan in 2016. Dr. Chan's most frequent co-authors are Taft P. Bhuket, MD, Benny Liu, MD and Aristeo Lopez.
Dr. Chan's most frequent co-authors
Recent publications by Dr. Chan
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 emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Chuck Chan received $24 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Chan from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $24.
Companies that paid Dr. Chan the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Chuck Chan graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Chan graduated from WesternU College of Osteopathic Medicine of the Pacific in 2021.
- Medical school
- Board certified in 2024 - 2026
- Board certified in 2021 - 2026
Source: Dmand AI Professional Profile Data
Dr. Chuck Chan accepts plans from 7 insurance carriers
Dr. Chan is in network with 7 carriers, including Elevance, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- HCSC
- United Healthcare
- Regence Health Plans
- CMS Medicare
- DentaQuest
Plan types Dr. Chan accepts, by number of carriers
- Medicare6
- PPO5
- HMO4
- POS4
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Chuck Chan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Chuck 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. Chuck Chan's NPI number?
Dr. Chuck Chan's NPI number is 1841877222. It was assigned on March 24, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Chuck Chan?
Dr. Chuck Chan is an emergency medicine physician in Orange, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Chuck Chan practice?
Dr. Chan practices at 101 City Drive South, Orange, CA 92868. Dr. Chan's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. Dmand AI also links Dr. Chan to 4 medical groups.
What is Dr. Chuck Chan's office phone number?
The practice phone on file for Dr. Chan is (714) 456-7890.
What is Dr. Chuck Chan's medical license number?
Dr. Chan holds Illinois license 036.167218.
Which hospitals is Dr. Chuck Chan affiliated with?
Dr. Chan practices at UCI Health - Orange in Orange, California. Dr. Chan is also affiliated with University of Illinois Hospital.
What medical group is Dr. Chuck Chan part of?
Dr. Chan is linked to UCI Health Anesthesia & Perioperative Care Services. Dmand AI links Dr. Chan to 4 more medical groups.
Does Dr. Chuck Chan accept Medicare?
Yes. CMS data shows Dr. Chan billed Medicare for 469 services in 2024, and Dr. Chan accepts Medicare assignment.
How many Medicare patients does Dr. Chuck Chan see?
CMS counts 380 Medicare patients who saw Dr. Chan in 2024, with an average age of 76.
Is Dr. Chuck Chan board certified?
Yes. Dr. Chan is board certified in 2024 - 2026 by the CA State License.
Show 8 more questionsShow fewer questions
What services does Dr. Chuck Chan bill to Medicare?
In 2024, Dr. Chan's most billed Medicare services were emergency department visit (99285), heart test or procedure (93042) and critical care (99291).
Where did Dr. Chuck Chan go to medical school?
Dr. Chan graduated from WesternU College of Osteopathic Medicine of the Pacific in 2021.
What drugs does Dr. Chuck Chan prescribe most?
In 2024 Medicare Part D data, Dr. Chan's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Cefuroxime and Prednisone.
Has Dr. Chuck Chan received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Dr. Chan from 1 company from 2024 to 2024. The largest total came from Genentech, Inc.
How long has Dr. Chuck Chan been practicing?
Dr. Chan graduated from medical school in 2021, 5 years ago.
Does Dr. Chuck Chan do research?
Dmand AI links 2 publications to Dr. Chan.
Who does Dr. Chuck Chan publish with?
Dr. Chan's most frequent co-authors are Taft P. Bhuket, MD (2 shared papers), Benny Liu, MD (1 shared paper) and Aristeo Lopez (1 shared paper).
What insurance does Dr. Chuck Chan accept?
Dr. Chan is in network with 7 carriers, including Elevance, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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