NPPES file of Aug 9, 2026

Chidinma Nnenna Ekenna, M.D.

Nephrology Physician · Olympia Fields, IL

Chidinma Nnenna Ekenna, M.D. is a nephrology physician with a practice address in Olympia Fields, Illinois, and NPI 1659750743, issued on May 22, 2015. Check the license (Illinois 036153267, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659750743
Name
Chidinma Nnenna Ekenna
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
036153267 IL
Self-reported in NPPES; status is on the state search
Practice location
3302 Vollmer RD, Olympia Fields, IL 60461
Phone
(708) 898-0811
Enumerated
May 22, 2015
Record last updated
Feb 17, 2026
Fax
(708) 898-1839
Medicare enrollment
Enrolled (PECOS I20200708002387); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3302 Vollmer RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Rhiannon Balazic, DPMPodiatrist1588228258
  2. Khalid Elharrif, MDNephrology Physician1487150306
  3. Aundrea GoodenNurse Practitioner1689061855
  4. Syed Affan Ul Haq Hashmi, MDNephrology Physician1164787792
  5. Mustafa Kagalwalla, MDNephrology Physician1093190076
  6. Ritika Paul, M.D.Nephrology Physician1801321807

Verify Chidinma Nnenna Ekenna in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036153267
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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72% fewer Medicare Part D claims than the average nephrology physician in 2024

408 Medicare Part D claims for 97 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Chidinma Ekenna408
  2. Specialty average1,465

Most prescribed

  1. Calcitriol36 claims
  2. Farxiga33 claims
  3. Sevelamer Carbonate31 claims
  4. Hydralazine Hcl27 claims
  5. Nifedipine Er21 claims
  6. Pregabalin19 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $431.38

15 payments; by number, the most common kind was food and beverage; the largest payer was Nxstage Medical, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Chidinma Ekenna$431.38
  2. Specialty average$3,091.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Kidney Care Center Olympia Fields LLCOlympia Fields, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

13 nephrology physician records list a practice address in Olympia Fields

They are 13 of the 684 NPPES records with a practice address in Olympia Fields, and 572 nephrology physician records in Illinois.

Other nephrology physician records in Illinois

  1. Momen Abbasi, M.D.Chicago, IL1184472268
  2. Ahmed AbdouHarvey, IL1821526492
  3. Mohan Abraham, MDChicago, IL1144550088
  4. Pabitra Adhikari, MDChicago, IL1427629740
  5. Bhavani Adusumilli, MDSpringfield, IL1568792604
  6. Vikram Aggarwal, M.DChicago, IL1316235583
  7. Akansha Agrawal, MDChicago, IL1396280905
  8. Kireet Agrawal, MDChicago, IL1780831719
  9. Fayzan Ahmad, MDChicago, IL1376005835
  10. Mashood Ahmad, MDRockford, IL1043232846

Common questions

What is Chidinma Nnenna Ekenna, M.D.'s NPI number?

Chidinma Nnenna Ekenna, M.D.'s National Provider Identifier (NPI) is 1659750743, issued on May 22, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Chidinma Nnenna Ekenna, M.D. located?

The NPPES record lists a practice address at 3302 Vollmer RD, Olympia Fields, IL, 60461. Phone: (708) 898-0811. Providers update this record themselves, so call before visiting.

How can I verify Chidinma Nnenna Ekenna, M.D.'s license?

NPPES lists Illinois license number 036153267, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Chidinma Nnenna Ekenna, M.D. prescribe under Medicare Part D?

In 2024, Chidinma Nnenna Ekenna, M.D. had 408 Medicare Part D claims for 97 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.