Doctor profile · Federal record

Dr. Byungwoo Choi, M.D.

Infectious Disease Physician (CMS: Infectious Disease) · Internal Medicine Physician · Camarillo, CA

  • NPI 1295006948
  • 20 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4000 Calle Tecate Ste 220
Camarillo, CA 930125289
(805) 465-7388
Mailing address
Po Box 3129
Torrance, CA 905103129

Credentials & registration

NPPES · NUCC
NPI registered
January 2012 — 14 yrs on file
Profile last updated
April 28, 2023
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
207RI0200X — NUCC code
State license (1)
California #C185254

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1295006948. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,387
Distinct HCPCS
7
Medicare allowed
$158,322
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 489 209 $118
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 433 206 $79
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 261 242 $174
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 84 80 $131
99214 Established patient office or other outpatient visit, 30-39 minutes 60 41 $101
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 39 36 $49
99213 Established patient office or other outpatient visit, 20-29 minutes 21 20 $90

In context: peer comparison

Among 2 peers in this city , average services per provider: 222. This provider delivers 6.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$211
Transactions
10
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Insmed, Inc. 4 $81.16
Merck Sharp & Dohme LLC 3 $66.52
Melinta Therapeutics, LLC 2 $43.63
Regeneron Healthcare Solutions, Inc. 1 $19.58

By nature of payment

Food and Beverage
$211

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
313
Patients
11
Total drug cost
$761,884
Drug Type Claims Patients Total cost
Genvoya (Elviteg/Cob/Emtri/Tenof Alafen) Brand 65 11 $256,499
Triumeq (Abacavir/Dolutegravir/Lamivudi) Brand 62 0 $238,788
Odefsey (Emtricitab/Rilpiviri/Tenof Ala) Brand 31 0 $140,724
Biktarvy (Bictegrav/Emtricit/Tenofov Ala) Brand 26 0 $103,877
Ceftriaxone (Ceftriaxone Sodium) Brand 18 0 $4,698
Ethambutol Hcl Generic 18 0 $1,346
Azithromycin Generic 17 0 $975
Vancomycin Hcl Generic 15 0 $2,864
Rifampin Generic 14 0 $1,899
Ampicillin-Sulbactam (Ampicillin Sod/Sulbactam Sod) Brand 13 0 $2,494

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Byungwoo Choi's medical specialty?
Dr. Byungwoo Choi practices Infectious Disease Physician in Camarillo, CA.
Where does Dr. Byungwoo Choi practice?
Dr. Byungwoo Choi practices at 4000 Calle Tecate Ste 220, Camarillo, CA 930125289. Office phone: 8054657388.
What is Dr. Byungwoo Choi's NPI?
Dr. Byungwoo Choi's National Provider Identifier (NPI) is 1295006948, issued by NPPES.
Does Dr. Byungwoo Choi accept Medicare assignment?
Dr. Byungwoo Choi does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Byungwoo Choi commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.