Michael James Nielsen, MHS, PAC
Physician Assistant · Madison, WI
Michael James Nielsen, MHS, PAC is a physician assistant with a practice address in Madison, Wisconsin, and NPI 1578794897, issued on Aug 4, 2009. Check the license (Wisconsin 2459, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael James Nielsen
- Credential
- MHS, PAC
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 2459 WI
2459-023 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2402 Winnebago St, Madison, WI 53704
- Phone
- (608) 287-2832
- Enumerated
- Aug 4, 2009
- Record last updated
- Jun 6, 2023
- Medicare enrollment
- Enrolled (PECOS I20100525000633); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,475 in Wisconsin → Look up another NPI →
Also registered at 2402 Winnebago St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael James Nielsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 2459Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average physician assistant in 2024
326 Medicare Part D claims for 229 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Cephalexin46 claims
- Prednisone32 claims
- Hydrocodone-Acetaminophen29 claims
- Amoxicillin-Clavulanate Potass23 claims
- Doxycycline Monohydrate20 claims
- Ondansetron Odt14 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 2 group practices
- Ihc Beaver Dam Emergency Physicians, LLCBeaver Dam, WI
- University OF Wisconsin Medical Foundation IncMadison, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael James Nielsen among 3,475 physician assistant records in Wisconsin
Michael James Nielsen, MHS, PAC is one of 3,475 physician assistant records with a practice address in Wisconsin. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 31% of them.
- NPI issued2009 · 31% of these records are older, 67% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2009 · median 2016 among the 2,491 with a school on file
- Record last updated2023 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
396 physician assistant records list a practice address in Madison
They are 396 of the 15,014 NPPES records with a practice address in Madison, and 3,475 physician assistant records in Wisconsin.
All 3,475 in Wisconsin → Every provider in Madison → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jane Applegate, PA-CMadison, WI 537041437488517
- Sarah Bodden, PA-CMadison, WI 537041619272986
- Phillip Bunton, PHYSICIAN ASSISTANTMadison, WI 537041336113729
- Sarah Coffey, PA-CMadison, WI 537041659822815
- Kelsey Henriquez, PA-CMadison, WI 537041710470422
- Jennifer Jones, PA-CMadison, WI 537041407495807
- Samantha Kaftan, PAMadison, WI 537041942708284
- Christopher O'Connell, PA-CMadison, WI 537041679892434
Common questions
What is Michael James Nielsen, MHS, PAC's NPI number?
Michael James Nielsen, MHS, PAC's National Provider Identifier (NPI) is 1578794897, issued on Aug 4, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Michael James Nielsen, MHS, PAC located?
The NPPES record lists a practice address at 2402 Winnebago St, Madison, WI, 53704. Phone: (608) 287-2832. Providers update this record themselves, so call before visiting.
How can I verify Michael James Nielsen, MHS, PAC's license?
NPPES lists Wisconsin license number 2459, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Michael James Nielsen, MHS, PAC prescribe under Medicare Part D?
In 2024, Michael James Nielsen, MHS, PAC had 326 Medicare Part D claims for 229 beneficiaries; the average among physician assistant prescribers was 830. 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.