DR. ALEX MAYEUX MD
NPI 1952833212
Radiology - Diagnostic Radiology in Belleville, IL

Q: What is Alex Mayeux's NPI number?

The NPI number for Alex Mayeux is 1952833212. It was assigned to this individual provider in the NPPES registry on March 28, 2017.

Q: What is Alex Mayeux's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Alex Mayeux was last updated on October 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.

Active since March 28, 2017PECOS EnrolledAccepts Medicare Assignment

98.59/100

CMS Quality Rating

4500 MEMORIAL DR, DEPT RADIOLOGY, BELLEVILLE, IL 62226(618) 257-5613(314) 454-4641 Get Directions Write a Review

NPPES record last updated: October 21, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 12, 2022, Feb 3, 2022, Mar 28, 2017 (3 updates tracked since 2017).

On this page

About Dr. Alex Mayeux Md NPPES

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

DR. ALEX MAYEUX MD (NPI 1952833212) is an individual diagnostic radiology provider in Belleville, Illinois, licensed in Illinois (036163984) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Alton Memorial Hospital, and is a graduate of Louisiana State University School Of Medicine In Shreveport (2017).

NPPES Registry Identity

NPI1952833212

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. ALEX MAYEUXCredential: MD

Location Address4500 MEMORIAL DR, DEPT RADIOLOGYBelleville, IL 62226-5360

Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (618) 257-5613 · Fax (314) 454-4641

Phone(618) 257-5613

Fax(314) 454-4641

Sole ProprietorNo

Medical School CMSLouisiana State University School Of Medicine In ShreveportGraduated 2017

Enumeration DateMarch 28, 2017

Last NPPES UpdateOctober 21, 20253 updates tracked since enumeration

NPPES CertifiedJune 1, 2022

✔ NPI 1952833212 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in IL · 036163984

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

4500 MEMORIAL DR, Belleville, IL 62226

Open in Google Maps ↗

Other Identifiers 1

Medicaid200108586MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare.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

Dr. Alex Mayeux 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 ID2163839234

PECOS Enrollment IDI20220524000698, I20230705000978

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

Medicare enrollment records show Alex Mayeux reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Washington University Physicians In Illinois, Inc.

Same address

Multi-Specialty

4500 MEMORIAL DR
Belleville, IL 62226

Reassigned Medicare billing, Illinois enrollment
530 clinicians in this Medicare group

NPI 1639679749 (314) 362-5641

Washington University

15 mi

Multi-Specialty

510 S KINGSHIGHWAY BLVD
Saint Louis, MO 63110

Reassigned Medicare billing, Missouri enrollment
373 clinicians in this Medicare group

NPI 1962442475 (314) 273-0770

Clinical Radiologists, S.C.

89 mi

Diagnostic Radiology

701 N 1ST ST
Springfield, IL 62781

Reassigned Medicare billing, Illinois, Indiana and Missouri enrollments
Medicare enrollment name: Clinical Radiologists Sc
35 clinicians in this Medicare group

NPI 1063469252 (217) 788-3245

Miracl, LLC

104 mi

Multi-Specialty

1000 W 10TH ST
Rolla, MO 65401

Reassigned Medicare billing, Missouri enrollment
347 clinicians in this Medicare group

NPI 1205304300 (573) 364-9000

Baptist Memorial Medical Group Inc

242 mi

Internal Medicine

8970 WINCHESTER RD
Memphis, TN 38125

Reassigned Medicare billing, Mississippi enrollment
494 clinicians in this Medicare group

NPI 1306089206 (901) 227-4068

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 35

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.

X-ray of chest, 1 view 71045

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

562 services529 patients

Ct scan head or brain without contrast 70450

A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.

289 services287 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.

283 services281 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

253 services247 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

218 services216 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

172 services171 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

137 services132 patients

Low dose ct scan of chest for lung cancer screening 71271

A low-dose CT scan of the chest is a quick, painless procedure that uses a small amount of radiation to create detailed images of your lungs. It's a key tool for early detection of lung cancer, especially for those at high risk.

132 services132 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

119 services118 patients

Ct scan of upper spine without contrast 72125

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

66 services66 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

60 services59 patients

Mri scan of abdomen before and after contrast 74183

An MRI scan of the abdomen before and after contrast provides detailed images of your abdominal organs. Initially, images are taken without a contrast agent. Then, a safe dye is administered, usually via an IV, to highlight certain areas, giving a clearer picture to help diagnose various conditions.

57 services57 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

55 services54 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

53 services52 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

47 services47 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

39 services39 patients

Ct scan of blood vessels of abdomen and pelvis with contrast 74174

A CT scan of the abdomen and pelvis with contrast is a medical imaging procedure. A special dye, called contrast, is used to make blood vessels more visible. The scan produces detailed images of your abdomen and pelvis, helping doctors to diagnose conditions or plan treatments.

37 services36 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

36 services35 patients

X-ray of knee, 1-2 views 73560

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

29 services27 patients

Ct scan of abdomen and pelvis before and after contrast 74178

A CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.

26 services26 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

24 services24 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

23 services22 patients

Ct scan of face without contrast 70486

A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.

22 services22 patients

Imaging for evaluation of swallowing function 74230

This process, known as a swallowing study, uses imaging technology to view how food and liquid move from your mouth to your stomach. It helps identify any issues you may have swallowing, which can be crucial for determining the best treatment plan.

21 services21 patients

Drainage of fluid from abdominal cavity using imaging guidance 49083

This procedure involves removing excess fluid from your abdominal cavity, which can relieve discomfort. A specialist uses imaging technology to guide a thin needle into the right spot. The fluid is then drained out safely.

19 services17 patients

Mri scan of abdomen without contrast 74181

An MRI scan of the abdomen without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed pictures of your abdominal organs. This procedure doesn't involve radiation or dye injection.

17 services17 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

17 services17 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

16 services15 patients

X-ray of lower leg, 2 views 73590

An X-ray of the lower leg, 2 views, is a quick, painless test that produces images of the bones in your lower leg. It helps to identify fractures, infections, or diseases. Two different angles are used to provide a comprehensive view of the leg's structure.

15 services15 patients

X-ray of pelvis, 1-2 views 72170

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

14 services14 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

14 services13 patients

Double contrast x-ray of esophagus 74221

A double contrast x-ray of the esophagus is a diagnostic procedure that uses a special type of x-ray and a contrast material to capture detailed images of your esophagus. This helps in identifying any abnormalities or issues.

13 services13 patients

Complete ultrasound scan of abdomen 76700

A complete ultrasound scan of the abdomen is a non-invasive imaging procedure. It uses sound waves to produce images of the organs in your abdomen, such as the liver, gallbladder, spleen, pancreas, and kidneys. It helps in diagnosing, monitoring, and planning treatments.

13 services13 patients

Mri scan of pelvis before and after contrast 72197

An MRI scan of the pelvis before and after contrast is a non-invasive imaging technique. It uses magnetic fields and radio waves to capture detailed images of your lower abdomen. Contrast dye, safe for the body, improves image clarity. This helps detect abnormalities more accurately.

12 services12 patients

Limited ultrasound scan behind abdominal cavity 76775

A limited ultrasound scan behind the abdominal cavity is a non-invasive imaging method that helps visualize structures in the back of your abdomen. This procedure uses sound waves to create pictures of these areas, assisting in diagnosing certain conditions.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Alton Memorial Hospital

Acute Care Hospitals · Alton, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140002

LocationOne Memorial DriveAlton, IL 62002 · Madison County

Emergency services Birthing friendly

Memorial Hospital

Acute Care Hospitals · Belleville, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140185

Location4500 Memorial DriveBelleville, IL 62226 · St. Clair County

Emergency services Birthing friendly

Hshs St Elizabeth's Hospital

Acute Care Hospitals · O Fallon, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140187

LocationOne St Elizabeth BoulevardO Fallon, IL 62269 · St. Clair County

Emergency services Birthing friendly

Hopedale Hospital

Critical Access Hospitals · Hopedale, IL

OwnershipVoluntary non-profit - Private

CMS Certification Number141330

Location107 Tremont StreetHopedale, IL 61747 · Tazewell County

Emergency services

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number260032

LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62226 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

$88.44 typical visit price

range $56.28 – $173.35

Typical copayment $22.11 (range $14.07 – $43.33)

Most-billed visit code 99203

Established Patient

$70.42 typical visit price

range $17.51 – $139.99

Typical copayment $17.60 (range $4.37 – $34.99)

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.

98.59/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

96.8

Improvement Activities

Other Providers at the Same Location NPPES 20

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

CEP AMERICA - ILLINOIS SNF, LLP

Internal Medicine (Infectious Disease)

4500 MEMORIAL DR
BELLEVILLE, IL 62226

St. Clair County (618) 233-7750

MS. LAUREN NICOLE MARSHALL FNP

Nurse Practitioner

4500 MEMORIAL DR
BELLEVILLE, IL 62226

St. Clair County (618) 257-5455

MR. LITO T RUFIN NP

Nurse Practitioner

4500 MEMORIAL DR
BELLEVILLE, IL 62226

St. Clair County (618) 257-6220

KIM C WRIGLEY P.A.

Physician Assistant

4500 MEMORIAL DR
BELLEVILLE, IL 62226

St. Clair County (618) 257-6220

BRIAN BENDEL

Nurse Anesthetist, Certified Registered

4500 MEMORIAL DR
BELLEVILLE, IL 62226

St. Clair County (561) 623-2008

DR. PAUL D SANDER MD

Pain Medicine (Pain Medicine)

4500 MEMORIAL DR, ANESTHESIA DEPT
BELLEVILLE, IL 62226

St. Clair County (618) 257-4076

DR. NEIL MCCLYMONT D.O.

Emergency Medicine

4500 MEMORIAL DR, MEMORIAL HOSPITAL - ER
BELLEVILLE, IL 62226

St. Clair County (618) 233-7750

DR. VIBHU DHAWAN MD

Internal Medicine

4500 MEMORIAL DR
BELLEVILLE, IL 62226

St. Clair County (618) 257-6220

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 Alex Mayeux's NPI number?

The NPI number for Alex Mayeux is 1952833212. It was assigned to this individual provider in the NPPES registry on March 28, 2017.

Where is Alex Mayeux located?

Alex Mayeux practices at 4500 Memorial Dr Dept Radiology, Belleville, IL 62226. The listed phone number is (618) 257-5613.

What is Alex Mayeux's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Alex Mayeux enrolled in Medicare?

Yes. Alex Mayeux 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 Alex Mayeux's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alex Mayeux reassigns Medicare benefits to 5 organizations: Washington University Physicians In Illinois, Inc. (Belleville, IL), Washington University (Saint Louis, MO), Clinical Radiologists, S.C. (Springfield, IL), Miracl, LLC (Rolla, MO) and Baptist Memorial Medical Group Inc (Memphis, TN). 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 Alex Mayeux's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alex Mayeux accept?

Health plans from Molina Healthcare list Alex Mayeux 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.

Is Alex Mayeux affiliated with any hospitals?

According to CMS data, Alex Mayeux is affiliated with Alton Memorial Hospital, Memorial Hospital, Hshs St Elizabeth's Hospital, Hopedale Hospital and Barnes Jewish Hospital.

When was this NPI record last updated?

The NPPES record for Alex Mayeux was last updated on October 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.