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IZUCHUKWU ARTHUR OKONKWO MD
NPI 1063101996
Internal Medicine in Chesterfield, MO

Active since May 05, 2023PECOS Enrolled
224 S WOODS MILL RD STE 400, CHESTERFIELD, MO 63017(314) 205-6050(314) 205-6350 Get Directions Write a Review

NPPES record last updated: July 10, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 10, 2023, May 5, 2023 (2 updates tracked since 2023).

About Izuchukwu Arthur Okonkwo Md NPPES

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

IZUCHUKWU ARTHUR OKONKWO MD (NPI 1063101996) is an individual internal medicine provider in Chesterfield, Missouri, licensed in Missouri (2023016721) and active in the NPI registry since May 2023. He is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1063101996
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameIZUCHUKWU ARTHUR OKONKWOCredential: MD
Location Address224 S WOODS MILL RD STE 400Chesterfield, MO 63017-3513
Mailing Address224 S Woods Mill Rd Ste 400Chesterfield, MO 63017-3513 · (314) 205-6050 · Fax (314) 205-6350
Phone(314) 205-6050
Fax(314) 205-6350
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateMay 5, 2023
Last NPPES UpdateJuly 10, 20232 updates tracked since enumeration
NPPES CertifiedJuly 10, 2023
✔ NPI 1063101996 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · 2023016721
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.
224 S WOODS MILL RD STE 400, Chesterfield, MO 63017
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Izuchukwu Arthur Okonkwo Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3375009244
PECOS Enrollment IDI20260730003458
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 Reassignment

Medicare enrollment records show Izuchukwu Okonkwo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Clinic Of Internal Medicine, LLC
0.6 mi
Internal Medicine
121 SAINT LUKES CENTER DR STE 506
Chesterfield, MO 63017
  • Reassigned Medicare billing, Missouri enrollment
  • 10 clinicians in this Medicare group
NPI 1316053077 (314) 576-8102

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63017 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
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.

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.

DANIEL APPIAH MD
Student in an Organized Health Care Education/Training Program
224 S WOODS MILL RD STE 400
CHESTERFIELD, MO 63017
St. Louis County (314) 205-6050
MUHAMMAD ARSALAN MD
Internal Medicine
224 S WOODS MILL RD STE 400
CHESTERFIELD, MO 63017
St. Louis County (314) 205-6050
JAHANGIR KHAN AFRIDI MD
Internal Medicine
224 S WOODS MILL RD STE 400
CHESTERFIELD, MO 63017
St. Louis County (314) 205-6050
ISRAT JAHAN
Student in an Organized Health Care Education/Training Program
224 S WOODS MILL RD STE 400
CHESTERFIELD, MO 63017
St. Louis County (314) 205-6050
TALAH M YOUNIS MD
Internal Medicine
224 S WOODS MILL RD STE 400
CHESTERFIELD, MO 63017
St. Louis County (314) 205-6050
SOHEIL MOHAMMADI
Student in an Organized Health Care Education/Training Program
224 S WOODS MILL RD STE 400
CHESTERFIELD, MO 63017
St. Louis County (314) 205-6050
MICHELLE A BOETTLER MD
Internal Medicine
224 S WOODS MILL RD STE 400
CHESTERFIELD, MO 63017
St. Louis County (314) 205-6050
MARYAM RAHMANI MD
Internal Medicine
224 S WOODS MILL RD STE 400
CHESTERFIELD, MO 63017
St. Louis County (314) 205-6050

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 Izuchukwu Okonkwo's NPI number?

The NPI number for Izuchukwu Okonkwo is 1063101996. It was assigned to this individual provider in the NPPES registry on May 5, 2023.

Where is Izuchukwu Okonkwo located?

Izuchukwu Okonkwo practices at 224 S Woods Mill Rd Ste 400, Chesterfield, MO 63017. The listed phone number is (314) 205-6050.

What is Izuchukwu Okonkwo's specialty?

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

Is Izuchukwu Okonkwo enrolled in Medicare?

Yes. Izuchukwu Okonkwo is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Izuchukwu Okonkwo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Izuchukwu Okonkwo reassigns Medicare benefits to Clinic Of Internal Medicine, LLC (Chesterfield, MO). The 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 Izuchukwu Okonkwo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Izuchukwu Okonkwo accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Izuchukwu Okonkwo 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 Izuchukwu Okonkwo was last updated on July 10, 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.