Brian Chen, AGNP, MSN
- Medicare patients, 2024
- 19
- Part D claims, 2024
- 203
- MIPS score, 2024
- 93
- Industry payments
- $440
- Affiliated sites
- 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 Brian 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.
Brian Chen is an adult health nurse practitioner in Duarte, California
Brian Chen practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.
Brian Chen's NPI, 1629726500, was assigned on March 10, 2022. Brian Chen holds California license 95018765.
- NPI
- 1629726500NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4284020173
- NPI enumeration date
- March 10, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (800) 826-4673
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Brian Chen practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California
Brian 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
Brian Chen is affiliated with 2 sites of care and 1 medical group
Brian Chen'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 Brian Chen to 1 more other site, named with a free account.
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 Brian Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Brian 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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Brian Chen is one of 1,032 adult health nurse practitioners in California
Adult health is Brian Chen's primary specialty in the NPI Registry, under taxonomy code 363LA2200X. Brian Chen is licensed in California.
Specialties and state licenses
- Adult health nurse practitioner, CaliforniaPrimary
Adult health nurse practitioners near Brian Chen
Counts of adult health nurse practitioners 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
Brian Chen treated 19 Medicare patients in 2024, average age 71
CMS counts 19 Medicare patients who saw Brian Chen in 2024. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 3.35, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Brian Chen's median patient age at 60, with 41% women.
Chronic conditions among Brian Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Brian 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 60
Patient panel by sex, all payers
- Women41%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Brian Chen wrote 203 Medicare Part D claims in 2024
In 2024, Brian Chen wrote 203 Medicare Part D claims for 70 patients. 82% of them were for generic drugs.
Brian Chen's Part D claims by kind of drug, 2024
- Generic167 claims82%
- Brand-name and other36 claims18%
Drug classes CMS tracks in Brian Chen's Part D claims, 2024
- Antibiotics19%38 of 203 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Brian Chen scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Brian Chen for performance year 2024, reported as part of a group. Brian Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Brian Chen's MIPS scores, performance year 2024
- 93of 100Final score
- 78.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
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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Brian Chen received $440 in industry payments in 2025
CMS Open Payments shows 13 general payments to Brian Chen from 6 drug and device companies in 2025. Food and beverage make up the largest share, 77% of the total. Astellas Pharma US Inc paid the most, $235.
General payments to Brian Chen by kind, 2025 to 2025
- Food and beverage$34077%
- Education$10023%
Companies that paid Brian Chen the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Brian 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 DataDmand AI Org Hierarchy Data |
| 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 (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) |
| 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 Brian 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 Brian Chen's NPI number?
Brian Chen's NPI number is 1629726500. It was assigned on March 10, 2022, and it is active in the NPI Registry.
What does Brian Chen specialize in?
Brian Chen is an adult health nurse practitioner in Duarte, California. The primary specialty in the NPI Registry is Adult Health Nurse Practitioner (taxonomy code 363LA2200X).
Where does Brian Chen practice?
Brian Chen practices at 1500 Duarte Rd, Duarte, CA 91010. Brian Chen's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Brian Chen to 1 other site.
What is Brian Chen's office phone number?
The practice phone on file for Brian Chen is (800) 826-4673.
What is Brian Chen's medical license number?
Brian Chen holds California license 95018765.
What medical group is Brian Chen part of?
Brian Chen is linked to City of Hope.
Does Brian Chen accept Medicare?
Yes. CMS lists Brian Chen as accepting Medicare assignment.
What is Brian Chen's MIPS score?
Brian Chen's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Brian Chen see?
CMS counts 19 Medicare patients who saw Brian Chen in 2024, with an average age of 71.
Has Brian Chen received payments from drug or device companies?
CMS Open Payments shows $440 in general payments to Brian Chen from 6 companies from 2025 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Brian Chen been practicing?
Brian Chen graduated from medical school in 2021, 5 years ago.
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