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Dr. Matthew C. Lee, MD
NPI1598296469PAC ID0244575694
- Medicare services, 2024
- 219
- Medicare patients, 2024
- 62
- Part D claims, 2024
- 387
- Publications
- 13
- MIPS score, 2024
- 100
- Practice address
- 1500 Duarte Rd, Duarte, CA 91010
- Practice phone
- Call (800) 826-4673
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
City of Hope Comprehensive Cancer Center - Duarte
Duarte, California
Find Dr. Lee's professional email, personal email and mobile number
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Dr. Matthew C. Lee is a medical oncologist in Duarte, California
Dr. Lee practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.
Dr. Lee's NPI, 1598296469, was assigned on March 23, 2017. Dr. Lee graduated from SUNY Downstate Health Sciences University in 2017. Dr. Lee holds California license A199265.
NPI and contact details
- NPI
- 1598296469NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244575694
- NPI enumeration date
- March 23, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (800) 826-4673
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Matthew C. Lee practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California
Dr. Lee's primary practice is City of Hope Comprehensive Cancer Center - Duarte, at 1500 Duarte Rd, Duarte, CA 91010 in Los Angeles County. The practice phone is (800) 826-4673.
- City of Hope Comprehensive Cancer Center - Duarte1500 Duarte Rd, Duarte, CA 91010 · Los Angeles CountyPhone(800) 826-4673
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Matthew C. Lee is affiliated with 3 sites of care and 1 medical group
Dr. Lee's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. The medical group on file is City of Hope. Dmand AI also links Dr. Lee to 1 more home health agency and 1 other site, each named with a free account.
City of Hope Comprehensive Cancer Center - DuartePrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Matthew C. Lee's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lee practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| City of Hope Comprehensive Cancer Center - Duarte | 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. Matthew C. Lee is one of 415 medical oncologists in California
Medical oncology is Dr. Lee's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Lee is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Lee's licenses on file in 2 states: California and New York.
Specialties and state licenses
- Medical oncology, CaliforniaPrimary
- Hematology (internal medicine), New York
Medical oncologists near Dr. Lee
Counts of medical 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. Matthew C. Lee billed Medicare for 219 services in 2024
CMS data shows 219 Medicare services from Dr. Lee across 5 procedure codes in 2024, for 62 Medicare patients. Medicare paid $24,927 for them.
Medicare services, 2024219
Medicare patients62
Paid by Medicare$24,927
Procedure codes5
Where Dr. Lee's Medicare services took place, 2024
- In an office13059%
- In a facility8941%
Dr. Lee compared with the California median for medical oncologists, 2024
- Dr. Lee
- California median
- Medicare services
- 219vs 49656% below
- Medicare patients
- 62vs 15460% below
- Part D claims
- 211vs 14447% above
Medians across 358 medical oncologists in California with Dmand AI profiles that report each measure.
Dr. Lee'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Matthew C. Lee treated 62 Medicare patients in 2024, average age 74
CMS counts 62 Medicare patients who saw Dr. Lee in 2024. The largest group is 65 to 74, with 34 patients. 75% of them have cancer, and 75% have high blood pressure. 66% are also on Medicaid. Their average risk score is 3.43, 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. Lee's median patient age at 71, with 50% women.
Medicare patients, 202462
Average age74
Average risk score3.43
Also on Medicaid66%
Dr. Lee's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lee's Medicare patients by sex, 2024
- Women2540%
- Men3760%
Chronic conditions among Dr. Lee's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Diabetes58%
- Arthritis56%
- COPD55%
- Ischemic heart disease47%
- Chronic kidney disease39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lee's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Matthew C. Lee wrote 387 Medicare Part D claims in 2024
In 2024, Dr. Lee wrote 387 Medicare Part D claims for 50 patients. 75% of them were for generic drugs. CMS names the drug for 211 of them, across 9 drugs with 11 or more claims each, at $459,740 in total drug cost. In 2023, CMS named 78 claims across 5 drugs.
Part D claims, 2024387
Drugs named by CMS9
Total drug cost$459,740
Part D patients50
Dr. Lee's Part D claims by kind of drug, 2024
- Generic292 claims75%
- Brand-name95 claims25%
Dr. Lee'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. Lee's Part D claims, 2024
- Opioids11%41 of 387 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: 782024: 211171%
Drugs named by CMS: 9 in 2024, 5 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. Matthew C. Lee scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Lee for performance year 2024, reported as part of a group. Dr. Lee accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lee as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Lee's MIPS scores, performance year 2024
- 100of 100Final score
- 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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Dr. Matthew C. Lee has 13 publications on record
Dmand AI links 13 papers to Dr. Lee, published from 2019 to 2025. 2021 was the busiest year, with 3. The most frequent topics are Carcinoma, Non-Small-Cell Lung, Lung Neoplasms and COVID-19. Dr. Lee's most frequent co-authors are Balazs Halmos, MD, Ryann Mary Quinn, MD and Astha Dipan Thakkar, MD.
Papers13
Years published2019 to 2025
Dr. Lee's papers by year, 2019 to 2025
Topics Dr. Lee writes about most
- Carcinoma, Non-Small-Cell Lung
- Lung Neoplasms
- COVID-19
- Protein Kinase Inhibitors
- SARS-CoV-2
Dr. Lee's most frequent co-authors
- Balazs Halmos, MD6 shared papers
- Ryann Mary Quinn, MD2 shared papers
- Astha Dipan Thakkar, MD2 shared papers
Recent publications by Dr. Lee
COVID-19SARS-CoV-2
See who Dr. Lee researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Lee works with, so you can find a warm path to the right medical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Matthew C. Lee received $16,485 in industry payments from 2023 to 2025
CMS Open Payments shows 37 general payments to Dr. Lee from 13 drug and device companies from 2023 to 2025. Consulting fees make up the largest share, 81% of the total. Jazz Pharmaceuticals Inc. paid the most, $10,963. It also lists 1 research payment totaling $96 in 2024, naming 1 clinical trial.
General payments to Dr. Lee by program year, 2023 to 2025
General payments to Dr. Lee by kind, 2023 to 2025
$16.5Kin total
- Consulting fees$13,41481%
- Food and beverage$1,63810%
- Travel and lodging$1,3338%
- Education$1001%
Companies that paid Dr. Lee the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Matthew C. Lee graduated from SUNY Downstate Health Sciences University
Dr. Lee graduated from SUNY Downstate Health Sciences University in 2017. Dr. Lee is a member of ASCO.
- Medical school
- Board certified in hematology
- Board certified in internal medicine
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Matthew C. Lee accepts plans from 13 insurance carriers
Dr. Lee is in network with 13 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Michigan
- Cigna
- Alliant Health Plans
- Blue Cross and Blue Shield of Kansas City
- +5 more carriersWith a free account
Plan types Dr. Lee accepts, by number of carriers
- PPO8
- HMO6
- Medicare6
- EPO4
- POS3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Matthew C. Lee'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 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)Clinician Public Reporting: Overall MIPS Performance (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. Matthew C. Lee
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. Matthew C. Lee's NPI number?
Dr. Matthew C. Lee's NPI number is 1598296469. It was assigned on March 23, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew C. Lee?
Dr. Matthew C. Lee is a medical oncologist in Duarte, California. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Matthew C. Lee practice?
Dr. Lee practices at 1500 Duarte Rd, Duarte, CA 91010. Dr. Lee's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Dr. Lee to 1 home health agency and 1 other site.
What is Dr. Matthew C. Lee's office phone number?
The practice phone on file for Dr. Lee is (800) 826-4673.
What is Dr. Matthew C. Lee's medical license number?
Dr. Lee holds California license A199265, one of the licenses on file in 2 states.
Which states has Dr. Matthew C. Lee been licensed in?
Dmand AI has state licenses on file for Dr. Lee in California (2024 to 2026) and New York (2020 to 2025).
What medical group is Dr. Matthew C. Lee part of?
Dr. Lee is linked to City of Hope.
Does Dr. Matthew C. Lee accept Medicare?
Yes. CMS data shows Dr. Lee billed Medicare for 219 services in 2024, and Dr. Lee accepts Medicare assignment.
Does Dr. Matthew C. Lee offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Lee as offering telehealth services.
What is Dr. Matthew C. Lee's MIPS score?
Dr. Lee's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Matthew C. Lee see?
CMS counts 62 Medicare patients who saw Dr. Lee in 2024, with an average age of 74.
Is Dr. Matthew C. Lee board certified?
Yes. Dr. Lee is board certified in hematology by the American Board of Internal Medicine.
What services does Dr. Matthew C. Lee bill to Medicare?
In 2024, Dr. Lee's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and hospital inpatient care (99233).
Where did Dr. Matthew C. Lee go to medical school?
Dr. Lee graduated from SUNY Downstate Health Sciences University in 2017.
What drugs does Dr. Matthew C. Lee prescribe most?
In 2024 Medicare Part D data, Dr. Lee's most prescribed drugs by claims were Mirtazapine, Oxycodone-Acetaminophen and Loperamide.
Has Dr. Matthew C. Lee received payments from drug or device companies?
CMS Open Payments shows $16,485 in general payments to Dr. Lee from 13 companies from 2023 to 2025. The largest total came from Jazz Pharmaceuticals Inc.
How long has Dr. Matthew C. Lee been practicing?
Dr. Lee graduated from medical school in 2017, 9 years ago.
Does Dr. Matthew C. Lee do research?
Dmand AI links 13 publications to Dr. Lee, published from 2019 to 2025.
Who does Dr. Matthew C. Lee publish with?
Dr. Lee's most frequent co-authors are Balazs Halmos, MD (6 shared papers), Ryann Mary Quinn, MD (2 shared papers) and Astha Dipan Thakkar, MD (2 shared papers).
What insurance does Dr. Matthew C. Lee accept?
Dr. Lee is in network with 13 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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