Daniel Thomas O'Connor, M.D.
Occupational Medicine Physician · Brookfield, WI
Daniel Thomas O'Connor, M.D. is an occupational medicine physician with a practice address in Brookfield, Wisconsin, and NPI 1952478927, issued on Nov 28, 2006. Check the license (Wisconsin 50669, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Daniel Thomas O'Connor
- Credential
- M.D.
- Primary taxonomy
- Occupational Medicine Physician 2083X0100X
- License numbers
- 50669 WI
50669-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2865 N Brookfield RD, Brookfield, WI 53045
- Phone
- (608) 628-3690
- Enumerated
- Nov 28, 2006
- Record last updated
- Sep 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130716000157); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest occupational medicine physician records → All 71 in Wisconsin → Look up another NPI →
Verify Daniel Thomas O'Connor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 50669Check 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: $272.87
4 payments; by number, the most common kind was food and beverage; the largest payer was Cook Medical LLC. The 193 providers of this specialty with any payment received $2,381.67 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
- Rae Holdings LtdElm Grove, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel Thomas O'Connor among 71 occupational medicine physician records in Wisconsin
Daniel Thomas O'Connor, M.D. is one of 71 occupational medicine physician records with a practice address in Wisconsin. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 55% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileYes · 18% of these records are
- Graduated2005 · median 2000 among the 13 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083X0100X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Occupational Medicine Physician providers in Wisconsin
There are 71 occupational medicine physician records in Wisconsin.
All 71 in Wisconsin → Every provider in Brookfield → Occupational Medicine Physician nationwide →
The 8 occupational medicine physician records with the nearest ZIP codes
- Robbin Papendick, D.O., M.P.H.Brookfield, WI 530451821168600
- James Bencivenga, MDHartford, WI 530271659304434
- David Smith, MD, MPHPlymouth, WI 530731902913114
- Mary Jo Capodice, DOSheboygan, WI 530811578612974
- Donna Habeck, M.D.Sheboygan, WI 530811790999472
- Jane Stark, MDSheboygan, WI 530811780785253
- Lynn Dolan, MDBrookfield, WI 530051003039678
- Ronald Inden, M.D.Brookfield, WI 530051760502165
Common questions
What is Daniel Thomas O'Connor, M.D.'s NPI number?
Daniel Thomas O'Connor, M.D.'s National Provider Identifier (NPI) is 1952478927, issued on Nov 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Thomas O'Connor, M.D. located?
The NPPES record lists a practice address at 2865 N Brookfield RD, Brookfield, WI, 53045. Phone: (608) 628-3690. Providers update this record themselves, so call before visiting.
How can I verify Daniel Thomas O'Connor, M.D.'s license?
NPPES lists Wisconsin license number 50669, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. 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.