Gerlyn M. Brasic, MD
Internal Medicine Physician · Onalaska, WI
Gerlyn M. Brasic, MD is an internal medicine physician with a practice address in Onalaska, Wisconsin, and NPI 1033104427, issued on Sep 13, 2005. Check the license (Wisconsin 44039, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gerlyn M. Brasic
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 44039 WI
Self-reported in NPPES; status is on the state search - Practice location
- 191 Theater Road, Onalaska, WI 54650
- Phone
- (608) 392-5025
- Enumerated
- Sep 13, 2005
- Record last updated
- Jan 24, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (608) 392-5788
- Medicaid ID
- 34179100 WI
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 191 Theater Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gerlyn M. Brasic in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 44039Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gerlyn M. Brasic among 2,078 internal medicine physician records in Wisconsin
Gerlyn M. Brasic, MD is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileNo · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2012 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 internal medicine physician records list a practice address in Onalaska
They are 13 of the 568 NPPES records with a practice address in Onalaska, and 2,078 internal medicine physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,078 in Wisconsin → Every provider in Onalaska → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jeffrey Addison, D.O.Onalaska, WI 546501295268571
- Steven Bowman, DOOnalaska, WI 546501851374284
- John Herath, MDOnalaska, WI 546501740286913
- Teresa King, MDOnalaska, WI 546501619932639
- Amit Kulkarni, MDOnalaska, WI 546501710939996
- Kathryn Lynn, DOOnalaska, WI 546501922102037
- Tiffany Marinier, D.O.Onalaska, WI 546501144343161
- James Munn, MDOnalaska, WI 546501417959735
Common questions
What is Gerlyn M. Brasic, MD's NPI number?
Gerlyn M. Brasic, MD's National Provider Identifier (NPI) is 1033104427, issued on Sep 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gerlyn M. Brasic, MD located?
The NPPES record lists a practice address at 191 Theater Road, Onalaska, WI, 54650. Phone: (608) 392-5025. Providers update this record themselves, so call before visiting.
How can I verify Gerlyn M. Brasic, MD's license?
NPPES lists Wisconsin license number 44039, 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. 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.