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BYUNGWOO CHOI M.D.
NPI 1295006948
Internal Medicine - Infectious Disease in Camarillo, CA

Active since January 25, 2012PECOS Enrolled
4000 CALLE TECATE STE 220, CAMARILLO, CA 93012(805) 465-7388 Get Directions Write a Review

NPPES record last updated: April 28, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 16, 2020, Aug 24, 2016 (2 updates tracked since 2016).

About Byungwoo Choi M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BYUNGWOO CHOI M.D. (NPI 1295006948) is an individual infectious disease provider in Camarillo, California, licensed in California (C185254) and active in the NPI registry since January 2012. He is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1295006948
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameBYUNGWOO CHOICredential: M.D.
Location Address4000 CALLE TECATE STE 220Camarillo, CA 93012-5289
Mailing AddressPo Box 3129Torrance, CA 90510-3129 · (310) 792-3914 · Fax (855) 898-4055
Phone(805) 465-7388
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateJanuary 25, 2012
Last NPPES UpdateApril 28, 20232 updates tracked since enumeration
NPPES CertifiedApril 28, 2023
✔ NPI 1295006948 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in CA · C185254
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Also ListedInternal MedicineTaxonomy 207R00000X · License C185254 (CA)
4000 CALLE TECATE STE 220, Camarillo, CA 93012
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Byungwoo Choi M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2567604663
PECOS Enrollment IDI20230616000132
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Byungwoo Choi reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Byungwoo Choi MD Inc
Same address
Infectious Disease
4000 CALLE TECATE STE 220
Camarillo, CA 93012
  • Reassigned Medicare billing, California enrollment
NPI 1265120166 (805) 465-7388
Community Memorial Health System
1.2 mi
Multi-Specialty
422 ARNEILL RD, SUITE B
Camarillo, CA 93010
  • Reassigned Medicare billing, California enrollment
  • 267 clinicians in this Medicare group
NPI 1104865518 (805) 482-1282

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
508 services221 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
331 services301 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
242 services152 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
109 services57 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
23 services23 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
16 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93012 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$140.72 typical visit price
range $62.32 – $185.36
Typical copayment $35.18 (range $15.58 – $46.34)
Most-billed visit code 99204
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubular dressing with or without elastic, any width, per linear yard A6457
DME-Medical/Surgical Supplies · category DA023N
3 suppliers11 claims132 services$1.10 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BYUNGWOO CHOI MD INC
Internal Medicine (Infectious Disease)
4000 CALLE TECATE STE 220
CAMARILLO, CA 93012
Ventura County (805) 465-7388
JOSHUA WOLFSOHN DO INC
Internal Medicine (Infectious Disease)
4000 CALLE TECATE STE 220
CAMARILLO, CA 93012
Ventura County (805) 377-2243
SARAINA SIMONE HEDGEPETH PA-C
Physician Assistant (Medical)
4000 CALLE TECATE STE 220
CAMARILLO, CA 93012
Ventura County (805) 465-7388

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Byungwoo Choi's NPI number?

The NPI number for Byungwoo Choi is 1295006948. It was assigned to this individual provider in the NPPES registry on January 25, 2012.

Where is Byungwoo Choi located?

Byungwoo Choi practices at 4000 Calle Tecate Ste 220, Camarillo, CA 93012. The listed phone number is (805) 465-7388.

What is Byungwoo Choi's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Byungwoo Choi enrolled in Medicare?

Yes. Byungwoo Choi is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Byungwoo Choi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Byungwoo Choi reassigns Medicare benefits to 2 organizations: Byungwoo Choi MD Inc (Camarillo, CA) and Community Memorial Health System (Camarillo, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Byungwoo Choi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Byungwoo Choi was last updated on April 28, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.