Dr. Brian Chou, MD
- Medicare services, 2024
- 3,446
- Medicare patients, 2024
- 299
- Part D claims, 2024
- 53
- MIPS score, 2024
- 91
- Hospital affiliations
- 1
- Practice address
- 9710 Summers Ridge Rd, San Diego, CA 92121
- Practice phone
- Call (858) 549-7400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Proton Doctors Professional Corporation
San Diego, California
Find Dr. Chou'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. Brian Chou is a radiation oncologist in San Diego, California
Dr. Chou practices at Proton Doctors Professional Corporation in San Diego, California.
Dr. Chou's NPI, 1770070609, was assigned on April 17, 2018. Dr. Chou graduated from Loma Linda University School of Medicine in 2018. Dr. Chou holds California license A187126.
- NPI
- 1770070609NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446583843
- NPI enumeration date
- April 17, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (858) 549-7400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian Chou practices at Proton Doctors Professional Corporation in San Diego, California
Dr. Chou's primary practice is Proton Doctors Professional Corporation, at 9710 Summers Ridge Rd, San Diego, CA 92121 in San Diego County. The practice phone is (858) 549-7400.
- Proton Doctors Professional Corporation9710 Summers Ridge Rd, San Diego, CA 92121 · San Diego CountyPhone(858) 549-7400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Brian Chou is affiliated with 5 sites of care and 4 medical groups
Dr. Chou's primary practice is Proton Doctors Professional Corporation in San Diego, California. Dr. Chou is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health. Dmand AI also links Dr. Chou to 3 more group practices and clinics and 3 medical groups, 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. Brian Chou's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chou practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Proton Doctors Professional Corporation | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Brian Chou is one of 685 radiation oncologists in California
Radiation oncology is Dr. Chou's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dmand AI has Dr. Chou's licenses on file in 2 states: California and Illinois.
Specialties and state licenses
- Radiation oncology, CaliforniaPrimary
- Illinois license
Radiation oncologists near Dr. Chou
Counts of radiation 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. Brian Chou billed Medicare for 3,446 services in 2024
CMS data shows 3,446 Medicare services from Dr. Chou across 12 procedure codes in 2024, for 299 Medicare patients. Medicare paid $1,487,239 for them. Every service was in an office.
Dr. Chou's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,0102024: 2,516149%
- Other services
- 2023: 3962024: 915131%
- Office and hospital visits
- 2023: 582024: 1574%
Dr. Chou compared with the California median for radiation oncologists, 2024
- Dr. Chou
- California median
- Medicare services
- 3,446vs 1,4442.4 times
- Medicare patients
- 299vs 16482% above
- Part D claims
- 23vs 3228% below
Medians across 633 radiation oncologists in California with Dmand AI profiles that report each measure.
Dr. Chou'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.
Need commercial claims for Dr. Chou?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chou and other radiation oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian Chou treated 299 Medicare patients in 2024, average age 73
CMS counts 299 Medicare patients who saw Dr. Chou in 2024. The largest group is 65 to 74, with 161 patients. 75% of them have cancer, and 66% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.77, 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. Chou's median patient age at 68, with 37% women.
Dr. Chou's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chou's Medicare patients by sex, 2024
- Women7525%
- Men22475%
Chronic conditions among Dr. Chou's Medicare patients, 2024
- Cancer75%
- High cholesterol66%
- High blood pressure58%
- Arthritis38%
- Ischemic heart disease25%
- Diabetes24%
- Anxiety20%
- Chronic kidney disease20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chou's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women37%
- Men63%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian Chou wrote 53 Medicare Part D claims in 2024
In 2024, Dr. Chou wrote 53 Medicare Part D claims for 29 patients. 98% of them were for generic drugs. CMS names the drug for 23 of them, across 2 drugs with 11 or more claims each, at $25 in total drug cost. In 2020, CMS named 11 claims across 1 drug.
Dr. Chou's Part D claims by kind of drug, 2024
- Generic52 claims98%
- Brand-name and other1 claims2%
Dr. Chou'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. Chou's Part D claims, 2024
- Opioids25%13 of 53 claims
- Antibiotics23%12 of 53 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, 2020 to 2024
- 2020
- 2024
- Claims for drugs CMS names
- 2020: 112024: 23109%
Drugs named by CMS: 2 in 2024, 1 in 2020.
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. Brian Chou scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Chou for performance year 2024, reported as part of a group. Dr. Chou accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chou as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Chou's MIPS scores, performance year 2024
- 91of 100Final score
- 84.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Brian Chou received $278 in industry payments from 2021 to 2025
CMS Open Payments shows 7 general payments to Dr. Chou from 6 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Carl Zeiss Meditec USA, Inc. paid the most, $122.
General payments to Dr. Chou by program year, 2021 to 2025
Companies that paid Dr. Chou the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Brian Chou graduated from Loma Linda University School of Medicine
Dr. Chou graduated from Loma Linda University School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian Chou'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Brian Chou
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. Brian Chou's NPI number?
Dr. Brian Chou's NPI number is 1770070609. It was assigned on April 17, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian Chou?
Dr. Brian Chou is a radiation oncologist in San Diego, California. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Brian Chou practice?
Dr. Chou practices at 9710 Summers Ridge Rd, San Diego, CA 92121. Dr. Chou's primary practice is Proton Doctors Professional Corporation in San Diego, California. Dmand AI also links Dr. Chou to 3 group practices and clinics and 3 medical groups.
What is Dr. Brian Chou's office phone number?
The practice phone on file for Dr. Chou is (858) 549-7400.
What is Dr. Brian Chou's medical license number?
Dr. Chou holds California license A187126, one of the licenses on file in 2 states.
Which states has Dr. Brian Chou been licensed in?
Dmand AI has state licenses on file for Dr. Chou in California and Illinois.
Which hospitals is Dr. Brian Chou affiliated with?
Dr. Chou is affiliated with Hillcrest Medical Center.
What medical group is Dr. Brian Chou part of?
Dr. Chou is linked to UC San Diego Health. Dmand AI links Dr. Chou to 3 more medical groups.
Does Dr. Brian Chou accept Medicare?
Yes. CMS data shows Dr. Chou billed Medicare for 3,446 services in 2024, and Dr. Chou accepts Medicare assignment.
Does Dr. Brian Chou offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chou as offering telehealth services.
Show 7 more questionsShow fewer questions
What is Dr. Brian Chou's MIPS score?
Dr. Chou's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Dr. Brian Chou see?
CMS counts 299 Medicare patients who saw Dr. Chou in 2024, with an average age of 73.
What services does Dr. Brian Chou bill to Medicare?
In 2024, Dr. Chou's most billed Medicare services were radiation oncology (77525), radiation oncology (77014) and medicare service (G6002).
Where did Dr. Brian Chou go to medical school?
Dr. Chou graduated from Loma Linda University School of Medicine in 2018.
What drugs does Dr. Brian Chou prescribe most?
In 2024 Medicare Part D data, Dr. Chou's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Ciprofloxacin HCl.
Has Dr. Brian Chou received payments from drug or device companies?
CMS Open Payments shows $278 in general payments to Dr. Chou from 6 companies from 2021 to 2025. The largest total came from Carl Zeiss Meditec USA, Inc.
How long has Dr. Brian Chou been practicing?
Dr. Chou graduated from medical school in 2018, 8 years ago.
Selling to radiation oncology practices?
See radiation oncologists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card