Brian Timothy Oneill, M.D./PH.D.
Endocrinology, Diabetes & Metabolism Physician · Iowa City, IA
Brian Timothy Oneill, M.D./PH.D. is an endocrinology, diabetes & metabolism physician with a practice address in Iowa City, Iowa, and NPI 1477720357, issued on May 10, 2008. Check the license (Iowa MD-43592, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Brian Timothy Oneill
- Credential
- M.D./PH.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- MD-43592 IA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Hawkins Dr, Iowa City, IA 52242
- Phone
- (855) 467-3700
- Enumerated
- May 10, 2008
- Record last updated
- Jul 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (319) 467-2410
- Medicare enrollment
- Enrolled (PECOS I20160803003056); accepts Medicare assignment
- Medical or professional school
- University Of Utah School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 52 in Iowa → Look up another NPI →
Also registered at 200 Hawkins Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Francois Abboud, MDCardiovascular Disease Physician1598753113
- Abdalla Abdalla, MBBCHAnatomic Pathology & Clinical Pathology Physician1518859826
- Sameh AbdallaAnatomic Pathology & Clinical Pathology Physician1437902160
Verify Brian Timothy Oneill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license MD-43592Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $163.61
1 payment: food and beverage; the largest payer was Xeris Pharmaceuticals, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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
- State University OF IowaIowa City, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Timothy Oneill among 52 endocrinology, diabetes & metabolism physician records in Iowa
Brian Timothy Oneill, M.D./PH.D. is one of 52 endocrinology, diabetes & metabolism physician records with a practice address in Iowa. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 42% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2008 · median 2003 among the 38 with a school on file
- Record last updated2016 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Iowa
There are 52 endocrinology, diabetes & metabolism physician records in Iowa.
All 52 in Iowa → Every provider in Iowa City → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Marcelo Correia, MD, MSC, PHDIowa City, IA 522421235421140
- Joseph Dillon, MDIowa City, IA 522421710960026
- Gregory Doelle, MDIowa City, IA 522421225025372
- Ayotunde Dokun, MD PHDIowa City, IA 522421548463078
- Helen Prathiba Gnanapragasam, MDIowa City, IA 522421750738654
- Yumi Imai, M.D.Iowa City, IA 522421376634543
- Amie Ogunsakin, MDIowa City, IA 522421952533580
- Janet Schlechte, MDIowa City, IA 522421528056173
Common questions
What is Brian Timothy Oneill, M.D./PH.D.'s NPI number?
Brian Timothy Oneill, M.D./PH.D.'s National Provider Identifier (NPI) is 1477720357, issued on May 10, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Brian Timothy Oneill, M.D./PH.D. located?
The NPPES record lists a practice address at 200 Hawkins Dr, Iowa City, IA, 52242. Phone: (855) 467-3700. Providers update this record themselves, so call before visiting.
How can I verify Brian Timothy Oneill, M.D./PH.D.'s license?
NPPES lists Iowa license number MD-43592, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.