Justin James Martinson, PA-C
Medical Physician Assistant · Watertown, SD
Justin James Martinson, PA-C is a medical physician assistant with a practice address in Watertown, South Dakota, and NPI 1356673883, issued on Feb 9, 2010. Check the license with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Justin James Martinson
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- Practice location
- 401 9TH Ave NW, Watertown, SD 57201
- Phone
- (605) 882-7000
- Enumerated
- Feb 9, 2010
- Record last updated
- May 2, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 401 9TH Ave NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Bipinkumar Amin, MDHematology & Oncology Physician1568415628
- Hamid Assadi, MDFamily Medicine Physician1841671872
Verify Justin James Martinson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Dakota board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average medical physician assistant in 2024
57 Medicare Part D claims for 38 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 94.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Medical Physician Assistant providers in South Dakota
There are 96 medical physician assistant records in South Dakota.
Other medical physician assistant records in South Dakota
- Ashley Anziano, PA-CRapid City, SD1780009340
- Andrew Arends, PA-CBeresford, SD1356392666
- Amber Authier, PA-CYankton, SD1518679851
- James Awuah, PA-C, MPHMartin, SD1609347798
- John Barnett, PA-CSalem, SD1952339343
- Valerie Belding, PA-CSioux Falls, SD1982297248
- Deane Berg, P.A.-CSioux Falls, SD1982658001
- Pauline Bevers, PA-CMiller, SD1578528907
- Jennifer Bietz, PA-CArmour, SD1225033681
- Vicki Blake-Nafus, PAPierre, SD1568473247
Common questions
What is Justin James Martinson, PA-C's NPI number?
Justin James Martinson, PA-C's National Provider Identifier (NPI) is 1356673883, issued on Feb 9, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Justin James Martinson, PA-C located?
The NPPES record lists a practice address at 401 9TH Ave NW, Watertown, SD, 57201. Phone: (605) 882-7000. Providers update this record themselves, so call before visiting.
How can I verify Justin James Martinson, PA-C's license?
Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
How much does Justin James Martinson, PA-C prescribe under Medicare Part D?
In 2024, Justin James Martinson, PA-C had 57 Medicare Part D claims for 38 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Justin James Martinson, PA-C's MIPS final score?
The 2023 MIPS final score is 94.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.