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Edit this profileAt a glance
- 4500 Brockton Avenue, Ste. #107, Riverside, CA 92501
About Dr. Choi
Listed in the NPI registry as a specialist, Brian S. Choi, M.D. practices in Riverside, CA. Brian graduated from Northwestern University Feinberg Medical School in 2003. According to Medicare claims data, Brian cared for 537 Medicare patients across 1,866 services. The services billed most often include injection, dexamethasone sodium phosphate, 1 mg, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and administration of chemotherapy into vein, 1 hour or less. NPI 1386602720 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (951) 276-2760
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
4500 BROCKTON AVENUE STE. #107
Riverside, CA 92501
Procedures Most Often Billed to Medicare
1,866 services · 537 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
33 | Less often than most peers in Specialist |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
132 | As often as other peers in Specialist |
| Assessment of emotional or behavioral problems | Treatment | 96127 |
119 | More often than most peers in Specialist |
| Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less | Treatment | 96367 |
94 | Less often than most peers in Specialist |
| Administration of chemotherapy into vein, each additional hour | Treatment | 96415 |
77 | As often as other peers in Specialist |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
52 | As often as other peers in Specialist |
| Administration of additional new drug or substance into vein, 1 hour or less | Treatment | 96417 |
48 | Less often than most peers in Specialist |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | Treatment | 96365 |
17 | Less often than most peers in Specialist |
| Injection, dexamethasone sodium phosphate, 1 mg | Drug given | J1100 |
706 | As often as other peers in Specialist |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
349 | More often than most peers in Specialist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other specialists in Riverside 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Northwestern University Feinberg Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 2003 at Northwestern University Feinberg Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Brian S. Choi?
Brian S. Choi is a specialist in Riverside, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Brian S. Choi's address?
Brian S. Choi is listed at 4500 Brockton Avenue Ste. #107, Riverside, CA 92501. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Brian S. Choi?
The number on file is (951) 276-2760. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Brian S. Choi's NPI number?
Brian S. Choi's National Provider Identifier is 1386602720. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Brian S. Choi train?
Brian S. Choi attended Northwestern University Feinberg Medical School, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How long has Brian S. Choi been practicing?
Brian S. Choi has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What procedures does Brian S. Choi perform?
According to Medicare billing data, Brian S. Choi performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as administration of chemotherapy into vein, 1 hour or less and assessment of emotional or behavioral problems, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Brian S. Choi confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Brian S. Choi. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.