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BYRON S K MUI MD
NPI 1891972121
Internal Medicine in Bakersfield, CA

Active since January 29, 2008PECOS EnrolledAccepts Medicare Assignment
2222 19TH STREET, BAKERSFIELD, CA 93301(661) 328-0800(661) 325-7425 Get Directions Write a Review

NPPES record last updated: January 29, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Byron S K Mui Md NPPES

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

BYRON S K MUI MD (NPI 1891972121) is an individual internal medicine provider in Bakersfield, California, licensed in California (G58099) and active in the NPI registry since January 2008. He is enrolled in Medicare PECOS and is a graduate of University Of Oklahoma College Of Medicine (1985).

NPPES Registry Identity

NPI1891972121
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameBYRON S K MUICredential: MD
Location Address2222 19TH STREETBakersfield, CA 93301-3609
Mailing Address2222 19th StreetBakersfield, CA 93301-3609 · (661) 328-0800 · Fax (661) 325-7425
Phone(661) 328-0800
Fax(661) 325-7425
Sole ProprietorYes
Medical School CMSUniversity Of Oklahoma College Of MedicineGraduated 1985
Enumeration DateJanuary 29, 2008
✔ NPI 1891972121 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G58099
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X · License G58099 (CA)
2222 19TH STREET, Bakersfield, CA 93301
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Other Identifiers 3

Medicaid00G580991CA
Medicare PIN00G580990CA
Medicare UPINE54094CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Byron S K Mui Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5193800670
PECOS Enrollment IDI20080307000262
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.

Areas of Expertise CMS Part B claims 5

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.

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.
398 services108 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
71 services45 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
50 services45 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
36 services36 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
22 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93301 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
$135.05 typical visit price
range $59.26 – $178.09
Typical copayment $33.76 (range $14.81 – $44.52)
Most-billed visit code 99204
Established Patient
$104.09 typical visit price
range $19.34 – $145.64
Typical copayment $26.02 (range $4.83 – $36.41)
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 3

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

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
1 supplier12 claims12 services$36.67 avg. paid by Medicare
Budesonide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, up to 0.5 mg J7626
DME-Drugs Administered Through DME · category DG000N
1 supplier12 claims720 services$0.74 avg. paid by Medicare
Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513
DME-Other DME · category DE000N
1 supplier12 claims12 services$23.87 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.

BYRON S K MUI M D F A C P A MEDICAL CORPORATION
Internal Medicine
2222 19TH STREET
BAKERSFIELD, CA 93301
Kern County (661) 328-0800
KERN COUNTY MEDICAL CLINIC,INC.
Allergy & Immunology
2222 19TH STREET
BAKERSFIELD, CA 93301
Kern County (661) 325-2448
SEE-RUERN S KITT MD
Internal Medicine (Infectious Disease)
2222 19TH STREET
BAKERSFIELD, CA 93301
Kern County (661) 325-2448

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 Byron Mui's NPI number?

The NPI number for Byron Mui is 1891972121. It was assigned to this individual provider in the NPPES registry on January 29, 2008.

Where is Byron Mui located?

Byron Mui practices at 2222 19th Street, Bakersfield, CA 93301. The listed phone number is (661) 328-0800.

What is Byron Mui's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Byron Mui enrolled in Medicare?

Yes. Byron Mui is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Byron Mui was last updated on January 29, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.