Conrad Scott Williamson, M.D.
Emergency Medicine Physician · Madison, WI
Conrad Scott Williamson, M.D. is an emergency medicine physician with a practice address in Madison, Wisconsin, and NPI 1346679362, issued on Nov 12, 2013. Check the license (Wisconsin 66660-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Conrad Scott Williamson
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 66660-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 213 Chestnut St, Madison, WI 53726
- Phone
- (949) 351-1670
- Enumerated
- Nov 12, 2013
- Record last updated
- Dec 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201202000752); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →
Verify Conrad Scott Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 66660-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% more Medicare Part D claims than the average emergency medicine physician in 2024
228 Medicare Part D claims for 131 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 35 claims were for opioids.
Most prescribed
- Ibuprofen35 claims
- Oxycodone Hcl33 claims
- Cephalexin19 claims
- Ondansetron Odt13 claims
- Prednisone12 claims
- Sulfamethoxazole-Trimethoprim12 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.
Bills Medicare through one group practice
- Permanente Medical Group IncRoseville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Conrad Scott Williamson among 1,464 emergency medicine physician records in Wisconsin
Conrad Scott Williamson, M.D. is one of 1,464 emergency medicine physician records with a practice address in Wisconsin. 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 2013, is newer than 64% of them.
- NPI issued2013 · 64% of these records are older, 33% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2015 · median 2011 among the 844 with a school on file
- Record last updated2021 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
241 emergency medicine physician records list a practice address in Madison
They are 241 of the 15,014 NPPES records with a practice address in Madison, and 1,464 emergency medicine physician records in Wisconsin.
All 1,464 in Wisconsin → Every provider in Madison → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Arthur Chiu, M.D.Madison, WI 537261114375367
- Haleh Van Vliet, M.D.Fitchburg, WI 537191932466216
- Miguel Gamez, MDMadison, WI 537171699837021
- Milton Johnson, MDMadison, WI 537171033153168
- Teresa Kulie, MDMadison, WI 537171235193137
- Terrence Lemberger, MDMadison, WI 537171154362192
- Dianne Meyer, MDMadison, WI 537171659315786
- Angela Petrie, M.D.Madison, WI 537171255577862
Common questions
What is Conrad Scott Williamson, M.D.'s NPI number?
Conrad Scott Williamson, M.D.'s National Provider Identifier (NPI) is 1346679362, issued on Nov 12, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Conrad Scott Williamson, M.D. located?
The NPPES record lists a practice address at 213 Chestnut St, Madison, WI, 53726. Phone: (949) 351-1670. Providers update this record themselves, so call before visiting.
How can I verify Conrad Scott Williamson, M.D.'s license?
NPPES lists Wisconsin license number 66660-20, 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 Conrad Scott Williamson, M.D. prescribe under Medicare Part D?
In 2024, Conrad Scott Williamson, M.D. had 228 Medicare Part D claims for 131 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.