STEPHANIE T BUI D.O.
NPI 1245461292
Surgery - Vascular Surgery in Downers Grove, IL

Active since August 06, 2009PECOS EnrolledAccepts Medicare Assignment
76.92/100
CMS Quality Rating
1101 31ST ST STE 170, DOWNERS GROVE, IL 60515(800) 991-6117(888) 812-8191 Get Directions Write a Review

NPPES record last updated: December 22, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 22, 2025, Dec 9, 2020, Oct 20, 2020 (3 updates tracked since 2020).

About Stephanie T Bui D.o. NPPES

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

STEPHANIE T BUI D.O. (NPI 1245461292) is an individual vascular surgery provider in Downers Grove, Illinois, licensed in Illinois (036.178140) and active in the NPI registry since August 2009. She is enrolled in Medicare PECOS, maintains 9 additional practice locations, and is a graduate of Kansas City University Of Med & Biosciences, College Of Osteo Med (2009).

NPPES Registry Identity

NPI1245461292
Entity TypeIndividualFemale
Primary Taxonomy2086S0129X
Provider Legal NameSTEPHANIE T BUICredential: D.O.
Location Address1101 31ST ST STE 170Downers Grove, IL 60515-5581
Mailing Address3820 Northdale Blvd Ste 201Tampa, FL 33624-1893 · (800) 991-6117 · Fax (888) 812-8191
Fax(888) 812-8191
Sole ProprietorNo
Medical School CMSKansas City University Of Med & Biosciences, College Of Osteo MedGraduated 2009
Enumeration DateAugust 6, 2009
Last NPPES UpdateDecember 22, 20253 updates tracked since enumeration
NPPES CertifiedDecember 22, 2025
✔ NPI 1245461292 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
Licenses✔ Licensed in IL · 036.178140✔ Licensed in CO · CDR0006203✔ Licensed in TX · W2614✔ Licensed in AZ · 012077✔ Licensed in MI · 5101018212
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
Also ListedPhlebologyTaxonomy 202K00000X · License W2614 (TX), 036.178140 (IL), CDR0006203 (CO), 012077 (AZ)
Also ListedGeneral PracticeTaxonomy 208D00000X · License 5101018212 (MI)
1101 31ST ST STE 170, Downers Grove, IL 60515

Secondary Practice Locations 9

Location 113555 W McDowell Rd Ste 210Goodyear, AZ 85395-2628 · Phone (800) 991-6117 · Fax (888) 812-8191
Location 23665 John F Kennedy Pkwy Ste 200Fort Collins, CO 80525-3152 · Phone (800) 991-6117 · Fax (888) 812-8191
Location 33003 S Florida Ave Ste 101Lakeland, FL 33803-4050 · Phone (800) 991-6117 · Fax (888) 812-8191
Location 43525 George Busbee Pkwy NW Ste 101Kennesaw, GA 30144 · Phone (800) 991-6117 · Fax (888) 812-8191
Location 595 N State Rt 17 Ste 202Paramus, NJ 07652-2626 · Phone (800) 991-6117 · Fax (888) 812-8191
Location 64900 Merrick Rd Fl 2Massapequa Park, NY 11762-3807 · Phone (800) 991-6117 · Fax (888) 812-8191
Location 73310 Live Oak St Ste 410Dallas, TX 75204-6145 · Phone (800) 991-6117 · Fax (888) 812-8191
Location 8802 N Riverside Rd Ste 200Saint Joseph, MO 64507-2553 · Phone (816) 271-6666 · Fax (816) 271-1300
Location 9363 Fremont St, Suite 101Battle Creek, MI 49017-3389 · Phone (269) 245-8350 · Fax (269) 245-8305

Other Identifiers 1

Other5101018212MI · Educational Limited License

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stephanie T Bui D.o. 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 ID2466694914
PECOS Enrollment IDI20260102002081, I20260105000654, I20260105000800, I20260105002866, I20260305003687
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

9

Medicare enrollment records show Stephanie Bui reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Vascular Surgery
4700 W 95TH ST STE 303
Oak Lawn, IL 60453
  • Reassigned Medicare billing, Illinois enrollment
  • 20 clinicians in this Medicare group
Hospitalist
601 JOHN STREET
Kalamazoo, MI 49007
  • Reassigned Medicare billing, Michigan enrollment
  • 1,133 clinicians in this Medicare group
Internal Medicine
300 NORTH AVE
Battle Creek, MI 49017
  • Reassigned Medicare billing, Michigan enrollment
  • 557 clinicians in this Medicare group
Vascular Surgery
371 E PACES FERRY RD NE STE 630
Atlanta, GA 30305
  • Reassigned Medicare billing, Georgia enrollment
  • 16 clinicians in this Medicare group
Vascular Surgery
9836 QUEENS BLVD STE 401
Rego Park, NY 11374
  • Reassigned Medicare billing, New York enrollment
  • 9 clinicians in this Medicare group
Surgery
5801 OAKBEND TRL STE 180
Fort Worth, TX 76132
  • Reassigned Medicare billing, Texas enrollment
  • 37 clinicians in this Medicare group
Vascular Surgery
3665 JOHN F KENNEDY PKWY STE 1-200
Fort Collins, CO 80525
  • Reassigned Medicare billing, Colorado enrollment
  • 17 clinicians in this Medicare group
Vascular Surgery
3657 MADACA LN
Tampa, FL 33618
  • Reassigned Medicare billing, Florida enrollment
  • 44 clinicians in this Medicare group
Vascular Surgery
1010 E MCDOWELL RD STE 103
Phoenix, AZ 85006
  • Reassigned Medicare billing, Arizona enrollment
  • 16 clinicians in this Medicare group

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 18

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.

Ultrasound of both sides of head and neck blood flow 93880
An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.
74 services72 patients
Ultrasound study of arm and leg arteries 93922
An ultrasound study of arm and leg arteries is a non-invasive procedure that uses sound waves to create images of your arteries. It helps in checking blood flow, identifying blockages, or detecting other abnormalities in your arteries.
67 services65 patients
Ultrasonic guidance for blood vessel access 76937
Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.
63 services53 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
46 services43 patients
Review by radiologist of abdominal aorta image 75625
This is a procedure where a radiologist, a doctor specialized in medical imaging, examines an image of your abdominal aorta. The abdominal aorta is the large blood vessel that carries blood to your lower body. The radiologist checks for any abnormalities to ensure your overall vascular health.
43 services37 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.
39 services31 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60515 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
$93.02 typical visit price
range $59.81 – $181.38
Typical copayment $23.25 (range $14.95 – $45.34)
Most-billed visit code 99203
Established Patient
$74.38 typical visit price
range $19.15 – $147.12
Typical copayment $18.59 (range $4.78 – $36.78)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

76.92/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality66.53
Promoting Interoperability100
Improvement Activities40
Cost56.53

Other Providers at the Same Location NPPES 2

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

Surgery
1101 31ST ST STE 170
DOWNERS GROVE, IL 60515
Internal Medicine (Cardiovascular Disease)
1101 31ST ST STE 170
DOWNERS GROVE, IL 60515

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 Stephanie Bui's NPI number?

The NPI number for Stephanie Bui is 1245461292. It was assigned to this individual provider in the NPPES registry on August 6, 2009.

Where is Stephanie Bui located?

Stephanie Bui practices at 1101 31st St Ste 170, Downers Grove, IL 60515. The listed phone number is (800) 991-6117.

What is Stephanie Bui's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Stephanie Bui enrolled in Medicare?

Yes. Stephanie Bui 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.

Which organizations bill Medicare for Stephanie Bui's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Bui reassigns Medicare benefits to 9 organizations: Illinois Uvc Medical PLLC (Oak Lawn, IL), Bronson Methodist Hospital (Kalamazoo, MI), Bronson Battle Creek Hospital (Battle Creek, MI), Georgia Uvc Medical LLC (Atlanta, GA), New York Medical United PLLC (Rego Park, NY) and 4 more organizations, listed in the Medicare section above. 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 Stephanie Bui's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephanie Bui accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 16 other insurers list Stephanie Bui as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Stephanie Bui was last updated on December 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.