Dr. Izuchukwu Arthur Okonkwo, MD
- Part D claims, 2024
- 47
- Publications
- 1
- Industry payments
- $119
- State license
- 1
- Year NPI issued
- 2023
- Practice address
- 224 S Woods Mill Rd Ste 400, Chesterfield, MO 63017-3513
- Practice phone
- Call (314) 205-6050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Okonkwo's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Izuchukwu Arthur Okonkwo is an internist in Chesterfield, Missouri
Dr. Okonkwo practices in Chesterfield, Missouri.
Dr. Okonkwo's NPI, 1063101996, was assigned on May 5, 2023. Dr. Okonkwo holds Missouri license 2023016721.
- NPI
- 1063101996NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375009244
- NPI enumeration date
- May 5, 2023
- NPI status
- Active
- Practice phone
- (314) 205-6050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Izuchukwu Arthur Okonkwo's practice address is in Chesterfield, Missouri
Dr. Okonkwo's practice address in the NPI Registry is 224 S Woods Mill Rd Ste 400, Chesterfield, MO 63017-3513. The practice phone is (314) 205-6050.
- NPI Registry address224 S Woods Mill Rd Ste 400, Chesterfield, MO 63017-3513Phone(314) 205-6050
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Izuchukwu Arthur Okonkwo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Okonkwo practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Okonkwo's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Izuchukwu Arthur Okonkwo is one of 2,114 internists in Missouri
Internal medicine is Dr. Okonkwo's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Okonkwo is licensed in Missouri.
Specialties and state licenses
- Internal medicine, MissouriPrimary
Internists near Dr. Okonkwo
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Izuchukwu Arthur Okonkwo's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Okonkwo's median patient age at 75, with 50% women.
Dr. Okonkwo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Izuchukwu Arthur Okonkwo wrote 47 Medicare Part D claims in 2024
In 2024, Dr. Okonkwo wrote 47 Medicare Part D claims for 24 patients. 87% of them were for generic drugs.
Dr. Okonkwo's Part D claims by kind of drug, 2024
- Generic41 claims87%
- Brand-name and other6 claims13%
Drug classes CMS tracks in Dr. Okonkwo's Part D claims, 2024
- Antibiotics23%11 of 47 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Izuchukwu Arthur Okonkwo has 1 publication on record
Dmand AI links 1 paper to Dr. Okonkwo in 2022. Dr. Okonkwo's most frequent co-authors are Ayodeji I. Jolayemi and Marlena Klaudia Lesniowska, MD.
Dr. Okonkwo's most frequent co-authors
Recent publications by Dr. Okonkwo
See who Dr. Okonkwo researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Okonkwo works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Izuchukwu Arthur Okonkwo received $119 in industry payments from 2023 to 2025
CMS Open Payments shows 6 general payments to Dr. Okonkwo from 6 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $24.
General payments to Dr. Okonkwo by program year, 2023 to 2025
Companies that paid Dr. Okonkwo the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Izuchukwu Arthur Okonkwo's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Izuchukwu Arthur Okonkwo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Izuchukwu Arthur Okonkwo's NPI number?
Dr. Izuchukwu Arthur Okonkwo's NPI number is 1063101996. It was assigned on May 5, 2023, and it is active in the NPI Registry.
What kind of doctor is Dr. Izuchukwu Arthur Okonkwo?
Dr. Izuchukwu Arthur Okonkwo is an internist in Chesterfield, Missouri. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Izuchukwu Arthur Okonkwo practice?
Dr. Okonkwo practices at 224 S Woods Mill Rd Ste 400, Chesterfield, MO 63017-3513.
What is Dr. Izuchukwu Arthur Okonkwo's office phone number?
The practice phone on file for Dr. Okonkwo is (314) 205-6050.
What is Dr. Izuchukwu Arthur Okonkwo's medical license number?
Dr. Okonkwo holds Missouri license 2023016721.
Has Dr. Izuchukwu Arthur Okonkwo received payments from drug or device companies?
CMS Open Payments shows $119 in general payments to Dr. Okonkwo from 6 companies from 2023 to 2025. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Izuchukwu Arthur Okonkwo been practicing?
Dr. Okonkwo's NPI was assigned in 2023.
Does Dr. Izuchukwu Arthur Okonkwo do research?
Dmand AI links 1 publication to Dr. Okonkwo.
Who does Dr. Izuchukwu Arthur Okonkwo publish with?
Dr. Okonkwo's most frequent co-authors are Ayodeji I. Jolayemi (1 shared paper) and Marlena Klaudia Lesniowska, MD (1 shared paper).
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