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EUGENE CHIEMEKA NWANKWO MD
NPI 1285253328
Internal Medicine - Gastroenterology in Indianapolis, IN

Active since April 09, 2020PECOS EnrolledAccepts Medicare Assignment
550 UNIVERSITY BLVD, INDIANAPOLIS, IN 46202(317) 944-0925 Get Directions Write a Review

NPPES record last updated: July 9, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 9, 2026, Oct 17, 2023, Apr 9, 2020 (3 updates tracked since 2020).

About Eugene Chiemeka Nwankwo Md NPPES

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

EUGENE CHIEMEKA NWANKWO MD (NPI 1285253328) is an individual gastroenterology provider in Indianapolis, Indiana, licensed in Indiana (01100185A) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Hospital Rochester, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1285253328
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameEUGENE CHIEMEKA NWANKWOCredential: MD
Location Address550 UNIVERSITY BLVDIndianapolis, IN 46202-5149
Mailing Address250 N Shadeland AveIndianapolis, IN 46219-4959
Phone(317) 944-0925
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateApril 9, 2020
Last NPPES UpdateJuly 9, 20263 updates tracked since enumeration
NPPES CertifiedJuly 9, 2026
✔ NPI 1285253328 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in IN · 01100185A✔ Licensed in MN · 73331
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal MedicineTaxonomy 207R00000X · License 01100185A (IN)
550 UNIVERSITY BLVD, Indianapolis, IN 46202
Open in Google Maps ↗

Secondary Practice Locations 2

Location 13660 Vista AveSaint Louis, MO 63110-2540 · Phone (325) 733-5337
Location 2200 1st St SWRochester, MN 55905-0001 · Phone (507) 284-2511

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, 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 and accepts Medicare assignment

Eugene Chiemeka Nwankwo 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 ID3072938547
PECOS Enrollment IDI20230525000108
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

4

Medicare enrollment records show Eugene Nwankwo reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Iu Health Medical Group, LLC
1.2 mi
General Practice
1701 N SENATE BLVD
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 5,212 clinicians in this Medicare group
NPI 1326893777 (317) 962-2000
Mayo Clinic
437 mi
Infectious Disease
200 1ST ST SW
Rochester, MN 55905
  • Reassigned Medicare billing, Minnesota enrollment
  • 6,534 clinicians in this Medicare group
NPI 1114343860 (507) 284-2511
Mayo Clinic Health System-Southeast Minnesota Region
458 mi
Multi-Specialty
404 W FOUNTAIN ST
Albert Lea, MN 56007
  • Reassigned Medicare billing, Minnesota enrollment
  • 1,571 clinicians in this Medicare group
NPI 1891701637 (507) 373-2384
Mayo Clinic Health System-Southwest Minnesota Region
480 mi
Multi-Specialty
501 STATE ST N
Waseca, MN 56093
  • Reassigned Medicare billing, Minnesota enrollment
  • 1,572 clinicians in this Medicare group
NPI 1518494251 (507) 835-1210

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 3

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.

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212
This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.
24 services17 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
17 services15 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
16 services16 patients

Hospital Affiliations CMS Care Compare 2

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

Mayo Clinic Hospital Rochester

Acute Care Hospitals · Rochester, MN
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number240010
Location1216 Second Street SouthwestRochester, MN 55902 · Olmsted County
Emergency services Birthing friendly

Mayo Clinic Health System In Red Wing

Acute Care Hospitals · Red Wing, MN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240018
Location701 Hewitt BoulevardRed Wing, MN 55066 · Goodhue County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46202 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
$122.49 typical visit price
range $53.07 – $161.76
Typical copayment $30.62 (range $13.26 – $40.44)
Most-billed visit code 99204
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
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.

JACK DAVID MARKIEWICZ M.D.
Radiology (Diagnostic Radiology)
550 UNIVERSITY BLVD
INDIANAPOLIS, IN 46202
Marion County (317) 278-9729
CRISTINA NANCY PEREZ CHUMBIAUCA MD
Internal Medicine (Rheumatology)
550 UNIVERSITY BLVD
INDIANAPOLIS, IN 46202
Marion County (317) 944-5000
JENNIFER MARIE SPORS NP
Nurse Practitioner (Gerontology)
550 UNIVERSITY BLVD
INDIANAPOLIS, IN 46202
Marion County (317) 944-7728
DR. BRENNA ESPELIEN MD
Obstetrics & Gynecology (Gynecology)
550 UNIVERSITY BLVD
INDIANAPOLIS, IN 46202
Marion County (317) 274-2018
STEVEN T HUGENBERG MD
Internal Medicine (Rheumatology)
550 UNIVERSITY BLVD
INDIANAPOLIS, IN 46202
Marion County (317) 944-8660
OLGA BARKAY MD
Student in an Organized Health Care Education/Training Program
550 UNIVERSITY BLVD, SUITE 4100
INDIANAPOLIS, IN 46202
Marion County (317) 278-0427
DR. YELENA CHERNYAK PH.D., HSPP
Psychologist (Health)
550 UNIVERSITY BLVD, ROOM UH 3240
INDIANAPOLIS, IN 46202
Marion County (317) 944-7422
HEATHER M HOSFIELD NP
Nurse Practitioner (Adult Health)
550 UNIVERSITY BLVD
INDIANAPOLIS, IN 46202
Marion County (317) 944-5000

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 Eugene Nwankwo's NPI number?

The NPI number for Eugene Nwankwo is 1285253328. It was assigned to this individual provider in the NPPES registry on April 9, 2020.

Where is Eugene Nwankwo located?

Eugene Nwankwo practices at 550 University Blvd, Indianapolis, IN 46202. The listed phone number is (317) 944-0925.

What is Eugene Nwankwo's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Eugene Nwankwo enrolled in Medicare?

Yes. Eugene Nwankwo 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 Eugene Nwankwo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eugene Nwankwo reassigns Medicare benefits to 4 organizations: Iu Health Medical Group, LLC (Indianapolis, IN), Mayo Clinic (Rochester, MN), Mayo Clinic Health System-Southeast Minnesota Region (Albert Lea, MN) and Mayo Clinic Health System-Southwest Minnesota Region (Waseca, MN). 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 Eugene Nwankwo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Eugene Nwankwo accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Anthem Blue Cross and Blue Shield list Eugene Nwankwo 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 Eugene Nwankwo affiliated with any hospitals?

According to CMS data, Eugene Nwankwo is affiliated with Mayo Clinic Hospital Rochester and Mayo Clinic Health System In Red Wing.

When was this NPI record last updated?

The NPPES record for Eugene Nwankwo was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.