Patrick James Brennan, M.D.
Surgery Physician · Neenah, WI
Patrick James Brennan, M.D. is a surgery physician with a practice address in Neenah, Wisconsin, and NPI 1104876945, issued on May 11, 2006. Check the license (Wisconsin 44570, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Patrick James Brennan
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 44570 WI
Self-reported in NPPES; status is on the state search - Practice location
- 100 Theda Clark Medical Plz, Neenah, WI 54956
- Phone
- (920) 725-4527
- Enumerated
- May 11, 2006
- Record last updated
- May 8, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (920) 725-0991
- Medicaid ID
- 34211900 WI
- Medicare enrollment
- Enrolled (PECOS I20120213000489); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 726 in Wisconsin → Look up another NPI →
Also registered at 100 Theda Clark Medical Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Burkett, M.D.Surgery Physician1124078662
- Jadi CortFamily Nurse Practitioner1326921792
- David Schultz, M.D.Surgery Physician1508817073
- Kevin Wasco, M.D.Surgery Physician1497705008
Verify Patrick James Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 44570Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% more Medicare Part D claims than the average surgery physician in 2024
166 Medicare Part D claims for 102 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 65 claims were for opioids.
Most prescribed
- Oxycodone Hcl60 claims
- Pantoprazole Sodium35 claims
- Omeprazole26 claims
- Sucralfate11 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: $44.56
2 payments; by number, the most common kind was food and beverage; the largest payer was Octapharma USA, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 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
- Surgical Associates OF Neenah, S.C.Neenah, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Patrick James Brennan among 726 surgery physician records in Wisconsin
Patrick James Brennan, M.D. is one of 726 surgery physician records with a practice address in Wisconsin. 72% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 52% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1997 · median 2006 among the 446 with a school on file
- Record last updated2008 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Wisconsin
There are 726 surgery physician records in Wisconsin.
All 726 in Wisconsin → Every provider in Neenah → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Paige Bevers, PANeenah, WI 549561801471941
- Jeffrey Burkett, M.D.Neenah, WI 549561124078662
- Raymond Georgen, M.D.Neenah, WI 549561912957457
- Andrew Greene, D.O.Neenah, WI 549561871531749
- Kevin Quinn, MDNeenah, WI 549561154352078
- David Schultz, M.D.Neenah, WI 549561508817073
- Colby Seegmiller, DONeenah, WI 549561336558832
- Kara Vande WalleNeenah, WI 549561679969323
Common questions
What is Patrick James Brennan, M.D.'s NPI number?
Patrick James Brennan, M.D.'s National Provider Identifier (NPI) is 1104876945, issued on May 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Patrick James Brennan, M.D. located?
The NPPES record lists a practice address at 100 Theda Clark Medical Plz, Neenah, WI, 54956. Phone: (920) 725-4527. Providers update this record themselves, so call before visiting.
How can I verify Patrick James Brennan, M.D.'s license?
NPPES lists Wisconsin license number 44570, 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.
How much does Patrick James Brennan, M.D. prescribe under Medicare Part D?
In 2024, Patrick James Brennan, M.D. had 166 Medicare Part D claims for 102 beneficiaries; the average among surgery physician prescribers was 147. 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.