Amber Marshall
Physician Assistant · Madison, WI
Amber Marshall is a physician assistant with a practice address in Madison, Wisconsin, and NPI 1659829364, issued on Sep 12, 2016. Check the license (Wisconsin 3885 - 23, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Amber Marshall
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 3885 - 23 WI
Self-reported in NPPES; status is on the state search - Practice location
- 600 Highland Ave, Madison, WI 53792
- Phone
- (608) 263-6190
- Enumerated
- Sep 12, 2016
- Record last updated
- Jan 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
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Verify Amber Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 3885 - 23Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average physician assistant in 2024
79 Medicare Part D claims for 41 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Oxycodone Hcl21 claims
- Amoxicillin-Clavulanate Potass11 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.
Amber Marshall among 3,475 physician assistant records in Wisconsin
Amber Marshall 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 2016, is newer than 53% of them.
- NPI issued2016 · 53% of these records are older, 44% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2021 · 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
- Erik Bonifas, PA CMadison, WI 537921093779688
- Kimberly Buchta, PAMadison, WI 537921194830927
- Nicole Fletchall, PA-CMadison, WI 537921871783944
- Jill Guenther, PAMadison, WI 537921770548489
- Myra Kemna, PA-CMadison, WI 537921649219387
- Dawn McComb, PA-CMadison, WI 537921437145760
- Joelle Mulroy Cluff, PA-CMadison, WI 537921275631046
- Alicia Purdin, PAMadison, WI 537921649234204
Common questions
What is Amber Marshall's NPI number?
Amber Marshall's National Provider Identifier (NPI) is 1659829364, issued on Sep 12, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Amber Marshall located?
The NPPES record lists a practice address at 600 Highland Ave, Madison, WI, 53792. Phone: (608) 263-6190. Providers update this record themselves, so call before visiting.
How can I verify Amber Marshall's license?
NPPES lists Wisconsin license number 3885 - 23, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Amber Marshall prescribe under Medicare Part D?
In 2024, Amber Marshall had 79 Medicare Part D claims for 41 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.