Onyinye I. Iweala, MD, PHD
Allergy & Immunology Physician · Chapel Hill, NC
Onyinye I. Iweala, MD, PHD is an allergy & immunology physician with a practice address in Chapel Hill, North Carolina, and NPI 1942520416, issued on Jun 8, 2010. Check the license (North Carolina 2013-01673, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Onyinye I. Iweala
- Credential
- MD, PHD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License numbers
- 2013-01673 NC
L-244874 MA
Self-reported in NPPES; status is on the state search - Practice location
- Unc Allergy And Immunology Clinic, Chapel Hill, NC 27517
- Phone
- (984) 974-2645
- Enumerated
- Jun 8, 2010
- Record last updated
- Aug 9, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (984) 974-2660
- Medicare enrollment
- Enrolled (PECOS I20130930000212); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 146 in North Carolina → Look up another NPI →
Verify Onyinye I. Iweala in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 2013-01673Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
564 Medicare Part D claims for 56 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.
Most prescribed
- Xolair74 claims
- Epinephrine52 claims
- Hydroxyzine Hcl39 claims
- Hizentra38 claims
- Cromolyn Sodium32 claims
- Prednisone30 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: $105.48
1 payment: food and beverage; the largest payer was Genentech, Inc. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- University OF North Carolina AT Chapel HillChapel Hill, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Onyinye I. Iweala among 146 allergy & immunology physician records in North Carolina
Onyinye I. Iweala, MD, PHD is one of 146 allergy & immunology physician records with a practice address in North Carolina. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 72% of them.
- NPI issued2010 · 72% of these records are older, 25% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2010 · median 2004 among the 94 with a school on file
- Record last updated2018 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in North Carolina
There are 146 allergy & immunology physician records in North Carolina.
All 146 in North Carolina → Every provider in Chapel Hill → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Edwin Kim, M.D.Chapel Hill, NC 275171659577070
- Stephen Schworer, M.D. PH.D.Chapel Hill, NC 275171003263955
- Claire Van Eenwyk, MDChapel Hill, NC 275171174733943
- Padmaja Gayam, MDCary, NC 275181477536035
- Scott Commins, MD, PHDChapel Hill, NC 275141770795486
- David Fitzhugh, M.D.Chapel Hill, NC 275141962627547
- Juliana Sullivan, DOChapel Hill, NC 275141124525506
- Gurdev Judge, M.D.Cary, NC 275111831113307
Common questions
What is Onyinye I. Iweala, MD, PHD's NPI number?
Onyinye I. Iweala, MD, PHD's National Provider Identifier (NPI) is 1942520416, issued on Jun 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Onyinye I. Iweala, MD, PHD located?
The NPPES record lists a practice address at Unc Allergy And Immunology Clinic, Chapel Hill, NC, 27517. Phone: (984) 974-2645. Providers update this record themselves, so call before visiting.
How can I verify Onyinye I. Iweala, MD, PHD's license?
NPPES lists North Carolina license number 2013-01673, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Onyinye I. Iweala, MD, PHD prescribe under Medicare Part D?
In 2024, Onyinye I. Iweala, MD, PHD had 564 Medicare Part D claims for 56 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.