Dr. Brian Cheung, MD
- Medicare services, 2024
- 34
- Medicare patients, 2024
- 33
- Part D claims, 2024
- 3,853
- Hospital affiliations
- 1
- Industry payments
- $271
- Practice address
- 9961 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 427-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Cheung's professional email, personal email and mobile number
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Dr. Brian Cheung is an internist in Fontana, California
Dr. Cheung practices at Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
Dr. Cheung's NPI, 1427546670, was assigned on April 24, 2018. Dr. Cheung graduated from Western Michigan Un Homer Stryker School of Med in 2018. Dr. Cheung holds California license A179658.
- NPI
- 1427546670NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608251210
- NPI enumeration date
- April 24, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (909) 427-5000
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian Cheung practices at Fontana Medical Center in Fontana, California
Dr. Cheung's primary practice is Fontana Medical Center, at 9961 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.
- Fontana Medical Center9961 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000
Source: Dmand AI Affiliation Data
Dr. Brian Cheung is affiliated with 2 sites of care and 2 medical groups
Dr. Cheung's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Cheung to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Brian Cheung's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cheung practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fontana Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian Cheung is one of 16,751 internists in California
Internal medicine is Dr. Cheung's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Cheung is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Cheung
Counts of internists 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 Cheung billed Medicare for 34 services in 2024
CMS data shows 34 Medicare services from Dr. Cheung across 2 procedure codes in 2024, for 33 Medicare patients. Medicare paid $2,040 for them. Every service was in an office.
Dr. Cheung compared with the California median for internists, 2024
- Dr. Cheung
- California median
- Medicare services
- 34vs 36191% below
- Medicare patients
- 33vs 15178% below
- Part D claims
- 3,354vs 4218.0 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Cheung'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. Brian Cheung treated 33 Medicare patients in 2024, average age 65
CMS counts 33 Medicare patients who saw Dr. Cheung in 2024. The largest group is 65 to 74, with 19 patients. 67% of them have high blood pressure, and 52% have high cholesterol. Their average risk score is 1.50, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Cheung's median patient age at 43, with 69% women.
Dr. Cheung's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Cheung's Medicare patients by sex, 2024
- Women2164%
- Men1236%
Chronic conditions among Dr. Cheung's Medicare patients, 2024
- High blood pressure67%
- High cholesterol52%
- Diabetes33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cheung's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women69%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian Cheung wrote 3,853 Medicare Part D claims in 2024
In 2024, Dr. Cheung wrote 3,853 Medicare Part D claims for 1,452 patients. 87% of them were for generic drugs. CMS names the drug for 3,354 of them, across 83 drugs with 11 or more claims each, at $112,570 in total drug cost. In 2023, CMS named 61 claims across 2 drugs.
Dr. Cheung's Part D claims by kind of drug, 2024
- Generic3,340 claims87%
- Brand-name461 claims12%
- Other52 claims1%
Dr. Cheung'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. Cheung's Part D claims, 2024
- Opioids1%25 of 3,853 claims
- Antibiotics13%485 of 3,853 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: 612024: 3,3545398%
Drugs named by CMS: 83 in 2024, 2 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. Brian Cheung offers telehealth to Medicare patients
Dr. Cheung accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Cheung as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Brian Cheung received $271 in industry payments from 2022 to 2023
CMS Open Payments shows 4 general payments to Dr. Cheung from 2 drug and device companies from 2022 to 2023. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $224.
General payments to Dr. Cheung by program year, 2022 to 2023
Companies that paid Dr. Cheung the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Brian Cheung graduated from Western Michigan Un Homer Stryker School of Med
Dr. Cheung graduated from Western Michigan Un Homer Stryker School of Med in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian Cheung'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| 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 Cheung
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 Cheung's NPI number?
Dr. Brian Cheung's NPI number is 1427546670. It was assigned on April 24, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian Cheung?
Dr. Brian Cheung is an internist in Fontana, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Brian Cheung practice?
Dr. Cheung practices at 9961 Sierra Ave, Fontana, CA 92335. Dr. Cheung's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. Dmand AI also links Dr. Cheung to 1 group practice or clinic and 1 medical group.
What is Dr. Brian Cheung's office phone number?
The practice phone on file for Dr. Cheung is (909) 427-5000.
What is Dr. Brian Cheung's medical license number?
Dr. Cheung holds California license A179658.
Which hospitals is Dr. Brian Cheung affiliated with?
Dr. Cheung practices at Fontana Medical Center in Fontana, California.
What medical group is Dr. Brian Cheung part of?
Dr. Cheung is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Cheung to 1 more medical group.
Does Dr. Brian Cheung accept Medicare?
Yes. CMS data shows Dr. Cheung billed Medicare for 34 services in 2024, and Dr. Cheung accepts Medicare assignment.
Does Dr. Brian Cheung offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Cheung as offering telehealth services.
How many Medicare patients does Dr. Brian Cheung see?
CMS counts 33 Medicare patients who saw Dr. Cheung in 2024, with an average age of 65.
Show 5 more questionsShow fewer questions
What services does Dr. Brian Cheung bill to Medicare?
In 2024, Dr. Cheung's most billed Medicare services were office visit, established patient (99214) and care management and other visits (99441).
Where did Dr. Brian Cheung go to medical school?
Dr. Cheung graduated from Western Michigan Un Homer Stryker School of Med in 2018.
What drugs does Dr. Brian Cheung prescribe most?
In 2024 Medicare Part D data, Dr. Cheung's most prescribed drugs by claims were Atorvastatin Calcium, Prednisone and Lisinopril.
Has Dr. Brian Cheung received payments from drug or device companies?
CMS Open Payments shows $271 in general payments to Dr. Cheung from 2 companies from 2022 to 2023. The largest total came from Amgen Inc.
How long has Dr. Brian Cheung been practicing?
Dr. Cheung graduated from medical school in 2018, 8 years ago.
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