Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. J. Nnaemeka Onwuta, M.D.

Pain Medicine (Anesthesiology) Physician in Elgin, IL · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1861445850

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Registry record

Entity type Individual (Type 1)

Name Dr. J. Nnaemeka Onwuta

Credential M.D.

Sex Male

Practice address 77 N Airlite St, Elgin, IL, 60123

Phone (847) 695-3200

Enumeration date May 18, 2006

Last updated in NPPES May 21, 2018

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 036086998 (IL) Secondary

208VP0014X Interventional Pain Medicine Physician Allopathic & Osteopathic Physicians · License 036086998 (IL) Secondary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 036-086998 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
036086998	Medicaid	IL	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify J. Onwuta's NPI record?

Cross-check NPI 1861445850 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1861445850 active?

Yes, as of the latest NPPES snapshot, NPI 1861445850 is active (record last updated 2018-05-21).

Other providers at this practice address

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Sajid Mehmood Critical Care Medicine (Internal Medicine) Physician · Elgin, IL NPI 1467444950 Ramalingappa Mukunda Internal Medicine Physician · Elgin, IL NPI 1972572675 Lori Mager Registered Dietitian · Elgin, IL NPI 1073579991 Jackie Daily-Caul Registered Dietitian · Elgin, IL NPI 1538125851 Mary Macdonald Registered Dietitian · Elgin, IL NPI 1235195587 Joan Young Certified Registered Nurse Anesthetist · Elgin, IL NPI 1518925544 Janine Goodsite Certified Registered Nurse Anesthetist · Elgin, IL NPI 1093763070 Associated Imaging Specialists Diagnostic Radiology Physician · Elgin, IL NPI 1366493256

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-21.