Dr. Ellie Eiei Chan, MD
- Medicare services, 2016
- 202
- Part D claims, 2024
- 483
- Publications
- 2
- Industry payments
- $1,295
- Affiliated sites
- 3
- Practice address
- 1190 Veterans Blvd, Redwood City, CA 94063
- Practice phone
- Call (650) 299-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Redwood City, California
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. Ellie Eiei Chan is a hematologist and oncologist in Redwood City, California
Dr. Chan practices at Permanente Medical Group Inc in Redwood City, California.
Dr. Chan's NPI, 1578761656, was assigned on July 10, 2007. Dr. Chan graduated from University Institute of Medicine 1 in 2002. Dr. Chan holds California license A110958.
- NPI
- 1578761656NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799925483
- NPI enumeration date
- July 10, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (650) 299-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ellie Eiei Chan practices at Permanente Medical Group Inc in Redwood City, California
Dr. Chan's primary practice is Permanente Medical Group Inc, at 1190 Veterans Blvd, Redwood City, CA 94063 in San Mateo County. The practice phone is (650) 299-2000.
- Permanente Medical Group Inc1190 Veterans Blvd, Redwood City, CA 94063 · San Mateo CountyPhone(650) 299-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ellie Eiei Chan is affiliated with 4 sites of care and 2 medical groups
Dr. Chan's primary practice is Permanente Medical Group Inc in Redwood City, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Chan to 2 more group practices and clinics, 1 hospice and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ellie Eiei 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 |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ellie Eiei Chan is one of 1,502 hematologists and oncologists in California
Hematology and oncology is Dr. Chan's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Chan is board certified in medical oncology by the American Board of Internal Medicine. Dmand AI has Dr. Chan's licenses on file in 2 states: California and Nevada.
Specialties and state licenses
- Hematology and oncology, CaliforniaPrimary
- Nevada license
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. Ellie Eiei Chan billed Medicare for 202 services in 2016
CMS data shows 202 Medicare services from Dr. Chan across 3 procedure codes in 2016. Medicare paid $14,733 for them.
Where Dr. Chan's Medicare services took place, 2016
- In an office6532%
- In a facility13768%
Dr. Chan compared with the California median for hematologists and oncologists, 2016
- Dr. Chan
- California median
- Medicare services
- 202vs 93278% below
- Part D claims
- 340vs 39414% below
Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.
Dr. Chan's most billed Medicare procedure codes, 2016
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 hematologists and oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ellie Eiei Chan's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Dr. Chan's median patient age at 64, with 52% women.
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 64
Patient panel by sex, all payers
- Women52%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Ellie Eiei Chan wrote 483 Medicare Part D claims in 2024
In 2024, Dr. Chan wrote 483 Medicare Part D claims for 105 patients. 77% of them were for generic drugs. CMS names the drug for 340 of them, across 16 drugs with 11 or more claims each, at $643,810 in total drug cost. In 2023, CMS named 296 claims across 15 drugs.
Dr. Chan's Part D claims by kind of drug, 2024
- Generic371 claims77%
- Brand-name112 claims23%
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
- Opioids5%24 of 483 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: 2962024: 34015%
Drugs named by CMS: 16 in 2024, 15 in 2023.
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. Ellie Eiei Chan offers telehealth to Medicare patients
Dr. Chan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ellie Eiei Chan has 2 publications on record
Dmand AI links 2 papers to Dr. Chan. Dr. Chan's most frequent co-authors are Ahmad Nawaf Alkhasawneh, Lizette Vila Duckworth, MD and Thomas J. George, MD.
Dr. Chan's most frequent co-authors
- Ahmad Nawaf Alkhasawneh2 shared papers
- Lizette Vila Duckworth, MD2 shared papers
- Thomas J. George, MD2 shared papers
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 hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ellie Eiei Chan received $1,295 in industry payments from 2016 to 2019
CMS Open Payments shows 8 general payments to Dr. Chan from 6 drug and device companies from 2016 to 2019. Consulting fees make up the largest share, 85% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $1,198.
General payments to Dr. Chan by program year, 2016 to 2019
General payments to Dr. Chan by kind, 2016 to 2019
- Consulting fees$1,10085%
- Food and beverage$18114%
- Education$141%
Companies that paid Dr. Chan the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ellie Eiei Chan graduated from University Institute of Medicine 1
Dr. Chan graduated from University Institute of Medicine 1 in 2002.
- Medical school
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Ellie Eiei Chan accepts plans from 3 insurance carriers
Dr. Chan is in network with 3 carriers, including Elevance, Kaiser Permanente and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Elevance
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Chan accepts, by number of carriers
- HMO2
- Medicare2
- POS2
- EPO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ellie Eiei 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 Data |
| 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. Ellie Eiei 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. Ellie Eiei Chan's NPI number?
Dr. Ellie Eiei Chan's NPI number is 1578761656. It was assigned on July 10, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Ellie Eiei Chan?
Dr. Ellie Eiei Chan is a hematologist and oncologist in Redwood City, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Ellie Eiei Chan practice?
Dr. Chan practices at 1190 Veterans Blvd, Redwood City, CA 94063. Dr. Chan's primary practice is Permanente Medical Group Inc in Redwood City, California. Dmand AI also links Dr. Chan to 2 group practices and clinics, 1 hospice and 1 medical group.
What is Dr. Ellie Eiei Chan's office phone number?
The practice phone on file for Dr. Chan is (650) 299-2000.
What is Dr. Ellie Eiei Chan's medical license number?
Dr. Chan holds California license A110958, one of the licenses on file in 2 states.
Which states has Dr. Ellie Eiei Chan been licensed in?
Dmand AI has state licenses on file for Dr. Chan in California (2010 to 2026) and Nevada (2007 to 2010).
What medical group is Dr. Ellie Eiei Chan part of?
Dr. Chan is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Chan to 1 more medical group.
Does Dr. Ellie Eiei Chan accept Medicare?
Yes. CMS data shows Dr. Chan billed Medicare for 202 services in 2016, and Dr. Chan accepts Medicare assignment.
Does Dr. Ellie Eiei Chan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chan as offering telehealth services.
Is Dr. Ellie Eiei Chan board certified?
Yes. Dr. Chan is board certified in medical oncology by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Ellie Eiei Chan bill to Medicare?
In 2016, Dr. Chan's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99222) and office visit, new patient (99203).
Where did Dr. Ellie Eiei Chan go to medical school?
Dr. Chan graduated from University Institute of Medicine 1 in 2002.
What drugs does Dr. Ellie Eiei Chan prescribe most?
In 2024 Medicare Part D data, Dr. Chan's most prescribed drugs by claims were Ondansetron HCl, Hydroxyurea and Nivestym.
Has Dr. Ellie Eiei Chan received payments from drug or device companies?
CMS Open Payments shows $1,295 in general payments to Dr. Chan from 6 companies from 2016 to 2019. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Dr. Ellie Eiei Chan been practicing?
Dr. Chan graduated from medical school in 2002, 24 years ago.
Does Dr. Ellie Eiei Chan do research?
Dmand AI links 2 publications to Dr. Chan.
Who does Dr. Ellie Eiei Chan publish with?
Dr. Chan's most frequent co-authors are Ahmad Nawaf Alkhasawneh (2 shared papers), Lizette Vila Duckworth, MD (2 shared papers) and Thomas J. George, MD (2 shared papers).
What insurance does Dr. Ellie Eiei Chan accept?
Dr. Chan is in network with 3 carriers, including Elevance, Kaiser Permanente and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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