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Dr. Eugene Chiemeka Nwankwo Jr., MD
NPI1285253328PAC ID3072938547
- Medicare services, 2024
- 57
- Medicare patients, 2024
- 53
- Part D claims, 2024
- 101
- Publications
- 17
- Hospital affiliations
- 2
- Practice address
- 1216 Second Street Southwest, Rochester, MN 55902
- Practice phone
- Call (507) 255-5123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nwankwo'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. Eugene Chiemeka Nwankwo Jr. is a gastroenterologist in Rochester, Minnesota
Dr. Nwankwo practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic.
Dr. Nwankwo's NPI, 1285253328, was assigned on April 9, 2020. Dr. Nwankwo graduated from Texas Tech University Health Science Center School of Medicine in 2020. Dr. Nwankwo holds Minnesota license 73331.
NPI and contact details
- NPI
- 1285253328NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072938547
- NPI enumeration date
- April 9, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (507) 255-5123
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Eugene Chiemeka Nwankwo Jr. practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota
Dr. Nwankwo's primary practice is Mayo Clinic Hospital, Saint Marys Campus, at 1216 Second Street Southwest, Rochester, MN 55902 in Olmsted County. The practice phone is (507) 255-5123.
- Mayo Clinic Hospital, Saint Marys Campus1216 Second Street Southwest, Rochester, MN 55902 · Olmsted CountyPhone(507) 255-5123
Source: Dmand AI Affiliation Data
Dr. Eugene Chiemeka Nwankwo Jr. is affiliated with 3 sites of care and 3 medical groups
Dr. Nwankwo's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dr. Nwankwo is also affiliated with Mayo Clinic Health System in Red Wing. The medical group on file is Mayo Clinic. Dmand AI also links Dr. Nwankwo to 2 more medical groups and 1 hospice, each named with a free account.
Mayo Clinic Health System in Red WingMayo Clinic2 medical groupsNames with a free account1 hospiceName with a free account
See all 6 affiliations for Dr. NwankwoSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Eugene Chiemeka Nwankwo Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nwankwo practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Hospital, Saint Marys Campus | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Eugene Chiemeka Nwankwo Jr. is one of 366 gastroenterologists in Minnesota
Gastroenterology is Dr. Nwankwo's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Nwankwo is licensed in Minnesota.
Specialties and state licenses
- Gastroenterology, MinnesotaPrimary
Gastroenterologists near Dr. Nwankwo
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
366gastroenterologists in Minnesota132gastroenterologists in Rochester93gastroenterologists at Mayo Clinic Hospital, Saint Marys Campus
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Eugene Chiemeka Nwankwo Jr. billed Medicare for 57 services in 2024
CMS data shows 57 Medicare services from Dr. Nwankwo across 3 procedure codes in 2024, for 53 Medicare patients. Medicare paid $5,455 for them. Every service was in an office.
Medicare services, 202457
Medicare patients53
Paid by Medicare$5,455
Procedure codes3
Dr. Nwankwo's Medicare services by type, 2024
- Office and hospital visits33
- Other services24
Dr. Nwankwo compared with the Minnesota median for gastroenterologists, 2024
- Dr. Nwankwo
- Minnesota median
- Medicare services
- 57vs 27479% below
- Medicare patients
- 53vs 19873% below
- Part D claims
- 26vs 14282% below
Medians across 380 gastroenterologists in Minnesota with Dmand AI profiles that report each measure.
Dr. Nwankwo's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nwankwo and other gastroenterologists in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Eugene Chiemeka Nwankwo Jr. treated 53 Medicare patients in 2024, average age 71
CMS counts 53 Medicare patients who saw Dr. Nwankwo in 2024. The largest group is 65 to 74, with 26 patients. 70% of them have high cholesterol, and 68% have high blood pressure. Their average risk score is 1.48, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nwankwo's median patient age at 68, with 63% women.
Medicare patients, 202453
Average age71
Average risk score1.48
Dr. Nwankwo's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Nwankwo's Medicare patients by sex, 2024
- Women2649%
- Men2751%
Chronic conditions among Dr. Nwankwo's Medicare patients, 2024
- High cholesterol70%
- High blood pressure68%
- Arthritis38%
- Chronic kidney disease28%
- Mood disorders28%
- Depression26%
- Heart failure25%
- Anxiety23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nwankwo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Eugene Chiemeka Nwankwo Jr. wrote 101 Medicare Part D claims in 2024
In 2024, Dr. Nwankwo wrote 101 Medicare Part D claims for 35 patients. 58% of them were for generic drugs. CMS names the drug for 26 of them, across 1 drug with 11 or more claims each, at $21,237 in total drug cost.
Part D claims, 2024101
Drugs named by CMS1
Total drug cost$21,237
Part D patients35
Dr. Nwankwo's Part D claims by kind of drug, 2024
- Generic59 claims58%
- Brand-name42 claims42%
Dr. Nwankwo's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Eugene Chiemeka Nwankwo Jr. takes part in Medicare
Dr. Nwankwo accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Eugene Chiemeka Nwankwo Jr. has 17 publications on record
Dmand AI links 17 papers to Dr. Nwankwo, published from 2017 to 2024. 2019 was the busiest year, with 4. Dr. Nwankwo has published most often in Cureus. Dr. Nwankwo's most frequent co-authors are Samuel Bruce Adams, MD, Gebran Khneizer, MD and Benjamin Aaron Alman, MD.
Papers17
Years published2017 to 2024
Dr. Nwankwo's papers by year, 2017 to 2024
Dr. Nwankwo's most frequent co-authors
- Samuel Bruce Adams, MD3 shared papers
- Gebran Khneizer, MD2 shared papers
- Benjamin Aaron Alman, MD1 shared paper
Recent publications by Dr. Nwankwo
Int J Colorectal Dis
Cholangiopancreatography, Endoscopic RetrogradeComorbidityHemorrhage
See who Dr. Nwankwo researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nwankwo works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Eugene Chiemeka Nwankwo Jr. graduated from Texas Tech University Health Science Center School of Medicine
Dr. Nwankwo graduated from Texas Tech University Health Science Center School of Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Eugene Chiemeka Nwankwo Jr.'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Eugene Chiemeka Nwankwo Jr.
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. Eugene Chiemeka Nwankwo Jr.'s NPI number?
Dr. Eugene Chiemeka Nwankwo Jr.'s NPI number is 1285253328. It was assigned on April 9, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Eugene Chiemeka Nwankwo Jr.?
Dr. Eugene Chiemeka Nwankwo Jr. is a gastroenterologist in Rochester, Minnesota. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Eugene Chiemeka Nwankwo Jr. practice?
Dr. Nwankwo practices at 1216 Second Street Southwest, Rochester, MN 55902. Dr. Nwankwo's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dmand AI also links Dr. Nwankwo to 2 medical groups and 1 hospice.
What is Dr. Eugene Chiemeka Nwankwo Jr.'s office phone number?
The practice phone on file for Dr. Nwankwo is (507) 255-5123.
What is Dr. Eugene Chiemeka Nwankwo Jr.'s medical license number?
Dr. Nwankwo holds Minnesota license 73331.
Which hospitals is Dr. Eugene Chiemeka Nwankwo Jr. affiliated with?
Dr. Nwankwo practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota. Dr. Nwankwo is also affiliated with Mayo Clinic Health System in Red Wing.
What medical group is Dr. Eugene Chiemeka Nwankwo Jr. part of?
Dr. Nwankwo is linked to Mayo Clinic. Dmand AI links Dr. Nwankwo to 2 more medical groups.
Does Dr. Eugene Chiemeka Nwankwo Jr. accept Medicare?
Yes. CMS data shows Dr. Nwankwo billed Medicare for 57 services in 2024, and Dr. Nwankwo accepts Medicare assignment.
How many Medicare patients does Dr. Eugene Chiemeka Nwankwo Jr. see?
CMS counts 53 Medicare patients who saw Dr. Nwankwo in 2024, with an average age of 71.
What services does Dr. Eugene Chiemeka Nwankwo Jr. bill to Medicare?
In 2024, Dr. Nwankwo's most billed Medicare services were medicare service (G2212), office visit, established patient (99215) and office visit, new patient (99205).
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Where did Dr. Eugene Chiemeka Nwankwo Jr. go to medical school?
Dr. Nwankwo graduated from Texas Tech University Health Science Center School of Medicine in 2020.
What drugs does Dr. Eugene Chiemeka Nwankwo Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Nwankwo's most prescribed drugs by claims were Creon.
How long has Dr. Eugene Chiemeka Nwankwo Jr. been practicing?
Dr. Nwankwo graduated from medical school in 2020, 6 years ago.
Does Dr. Eugene Chiemeka Nwankwo Jr. do research?
Dmand AI links 17 publications to Dr. Nwankwo, published from 2017 to 2024.
Who does Dr. Eugene Chiemeka Nwankwo Jr. publish with?
Dr. Nwankwo's most frequent co-authors are Samuel Bruce Adams, MD (3 shared papers), Gebran Khneizer, MD (2 shared papers) and Benjamin Aaron Alman, MD (1 shared paper).
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