Kevin Siwei Chen
- Part D claims, 2024
- 678
- Industry payments
- $340
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- 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 Kevin Chen'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.
Kevin Siwei Chen is a physician assistant in Duarte, California
Kevin Chen practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.
Kevin Chen's NPI, 1184269284, was assigned on November 12, 2019. Kevin Chen holds California license 57501.
- NPI
- 1184269284NPI Registry (opens in a new tab)
- NPI enumeration date
- November 12, 2019
- NPI status
- Active
- Practice phone
- (800) 826-4673
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Kevin Siwei Chen practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California
Kevin Chen'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
Kevin Siwei Chen is affiliated with 2 sites of care and 1 medical group
Kevin Chen's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. The medical group on file is Aspen Medical Group. Dmand AI also links Kevin Chen to 1 more group practice or clinic, 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 Kevin Siwei Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Kevin Chen practices. 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 |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Kevin Siwei Chen is one of 11,482 physician assistants in California
Physician assistant is Kevin Chen's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Kevin Chen is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Kevin Chen
Counts of physician assistants 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
Kevin Siwei Chen's patients have a median age of 45
Across all payers, Dmand AI patient panel data puts Kevin Chen's median patient age at 45, with 76% women.
Kevin Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women76%
- Men23%
Source: Dmand AI Patient Panel Data
Kevin Siwei Chen wrote 678 Medicare Part D claims in 2024
In 2024, Kevin Chen wrote 678 Medicare Part D claims for 88 patients. 85% of them were for generic drugs. CMS names the drug for 337 of them, across 19 drugs with 11 or more claims each, at $31,116 in total drug cost.
Kevin Chen's Part D claims by kind of drug, 2024
- Generic577 claims85%
- Brand-name85 claims13%
- Other16 claims2%
Kevin Chen'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 Kevin Chen's Part D claims, 2024
- Opioids2%12 of 678 claims
- Antibiotics4%29 of 678 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
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Kevin Siwei Chen received $340 in industry payments from 2024 to 2025
CMS Open Payments shows 15 general payments to Kevin Chen from 6 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Intra-sana Laboratories paid the most, $145.
General payments to Kevin Chen by program year, 2024 to 2025
Companies that paid Kevin Chen the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Kevin Siwei Chen'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Kevin Siwei Chen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Kevin Siwei Chen's NPI number?
Kevin Siwei Chen's NPI number is 1184269284. It was assigned on November 12, 2019, and it is active in the NPI Registry.
What does Kevin Siwei Chen specialize in?
Kevin Siwei Chen is a physician assistant in Duarte, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Kevin Siwei Chen practice?
Kevin Chen practices at 1500 Duarte Rd, Duarte, CA 91010. Kevin Chen's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Kevin Chen to 1 group practice or clinic.
What is Kevin Siwei Chen's office phone number?
The practice phone on file for Kevin Chen is (800) 826-4673.
What is Kevin Siwei Chen's medical license number?
Kevin Chen holds California license 57501.
What medical group is Kevin Siwei Chen part of?
Kevin Chen is linked to Aspen Medical Group.
What drugs does Kevin Siwei Chen prescribe most?
In 2024 Medicare Part D data, Kevin Chen's most prescribed drugs by claims were Atorvastatin Calcium, Ibuprofen and Fluticasone Propionate.
Has Kevin Siwei Chen received payments from drug or device companies?
CMS Open Payments shows $340 in general payments to Kevin Chen from 6 companies from 2024 to 2025. The largest total came from Intra-sana Laboratories.
How long has Kevin Siwei Chen been practicing?
Kevin Chen's NPI was assigned in 2019.
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