Dr. Roger Chan, MD
- Medicare services, 2024
- 24
- Medicare patients, 2024
- 20
- Publications
- 2
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 9333 Imperial Highway, Downey, CA 90242
- Practice phone
- Call (562) 461-6007
- 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
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Dr. Roger Chan is a pathologist in Downey, California
Dr. Chan practices at Downey Medical Center in Downey, California, part of Kaiser Permanente.
Dr. Chan's NPI, 1811146053, was assigned on September 11, 2008. Dr. Chan graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2005. Dr. Chan holds California license A98685.
- NPI
- 1811146053NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345433504
- NPI enumeration date
- September 11, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (562) 461-6007
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Roger Chan practices at Downey Medical Center in Downey, California
Dr. Chan's primary practice is Downey Medical Center, at 9333 Imperial Highway, Downey, CA 90242 in Los Angeles County. The practice phone is (562) 461-6007.
- Downey Medical Center9333 Imperial Highway, Downey, CA 90242 · Los Angeles CountyPhone(562) 461-6007
Source: Dmand AI Affiliation Data
Dr. Roger Chan is affiliated with 3 sites of care and 1 medical group
Dr. Chan's primary practice is Downey Medical Center in Downey, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Chan to 1 more breast imaging center and 1 group practice or clinic, 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. Roger Chan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Downey Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Roger Chan is one of 1,354 pathologists in California
Anatomic pathology and clinical pathology is Dr. Chan's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Chan is board certified in pathology - anatomic/pathology - clinical by the American Board of Pathology. Dr. Chan is licensed in California.
Specialties and state licenses
- Anatomic pathology and clinical pathology, CaliforniaPrimary
Pathologists near Dr. Chan
Counts of pathologists 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. Roger Chan billed Medicare for 24 services in 2024
CMS data shows 24 Medicare services from Dr. Chan across 1 procedure code in 2024, for 20 Medicare patients. Medicare paid $624 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 322024: 2425%
Dr. Chan compared with the California median for pathologists, 2024
- Dr. Chan
- California median
- Medicare services
- 24vs 1,15398% below
- Medicare patients
- 20vs 44796% below
Medians across 1,094 pathologists 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chan and other pathologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Roger Chan treated 20 Medicare patients in 2024, average age 68
CMS counts 20 Medicare patients who saw Dr. Chan in 2024. The largest group is 85 and over, with 0 patients. 65% of them have high cholesterol, and 60% have high blood pressure. Their average risk score is 2.56, 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 49, with 65% women.
Dr. Chan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Chan's Medicare patients, 2024
- High cholesterol65%
- High blood pressure60%
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 49
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Roger 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. Roger Chan has 2 publications on record
Dmand AI links 2 papers to Dr. Chan.
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 pathologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Roger Chan graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Chan graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2005.
- Medical school
- Board certified in pathology - anatomic/pathology - clinical
Source: Dmand AI Professional Profile Data
Dr. Roger Chan accepts plans from 2 insurance carriers
Dr. Chan is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Chan accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Roger 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) |
| 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 |
| 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. Roger 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. Roger Chan's NPI number?
Dr. Roger Chan's NPI number is 1811146053. It was assigned on September 11, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Roger Chan?
Dr. Roger Chan is a pathologist in Downey, California. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Roger Chan practice?
Dr. Chan practices at 9333 Imperial Highway, Downey, CA 90242. Dr. Chan's primary practice is Downey Medical Center in Downey, California, part of Kaiser Permanente. Dmand AI also links Dr. Chan to 1 breast imaging center and 1 group practice or clinic.
What is Dr. Roger Chan's office phone number?
The practice phone on file for Dr. Chan is (562) 461-6007.
What is Dr. Roger Chan's medical license number?
Dr. Chan holds California license A98685.
Which hospitals is Dr. Roger Chan affiliated with?
Dr. Chan practices at Downey Medical Center in Downey, California.
What medical group is Dr. Roger Chan part of?
Dr. Chan is linked to Southern California Permanente Medical Group.
Does Dr. Roger Chan accept Medicare?
Yes. CMS data shows Dr. Chan billed Medicare for 24 services in 2024, and Dr. Chan accepts Medicare assignment.
How many Medicare patients does Dr. Roger Chan see?
CMS counts 20 Medicare patients who saw Dr. Chan in 2024, with an average age of 68.
Is Dr. Roger Chan board certified?
Yes. Dr. Chan is board certified in pathology - anatomic/pathology - clinical by the American Board of Pathology.
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What services does Dr. Roger Chan bill to Medicare?
In 2024, Dr. Chan's most billed Medicare services were lab and pathology test (88305).
Where did Dr. Roger Chan go to medical school?
Dr. Chan graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2005.
How long has Dr. Roger Chan been practicing?
Dr. Chan graduated from medical school in 2005, 21 years ago.
Does Dr. Roger Chan do research?
Dmand AI links 2 publications to Dr. Chan.
What insurance does Dr. Roger Chan accept?
Dr. Chan is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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