Justin Adam Mackinnon, MD
Emergency Medicine Physician · Potsdam, NY
Justin Adam Mackinnon, MD is an emergency medicine physician with a practice address in Potsdam, New York, and NPI 1447516224, issued on Apr 6, 2012. Check the license (New York 2711461, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Justin Adam Mackinnon
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 2711461 NY
Self-reported in NPPES; status is on the state search - Practice location
- 50 Leroy St, Potsdam, NY 13676
- Phone
- (315) 265-3300
- Enumerated
- Apr 6, 2012
- Record last updated
- Jun 8, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140729001612); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 50 Leroy St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Adams, FNP-CFamily Nurse Practitioner1164984753
- Caroline Arcand DusseaultOccupational Therapist1144015397
- Mariam Asar, MDChild & Adolescent Psychiatry Physician1649479239
- Timothy Atkinson, M.D.Family Medicine Physician1346239308
- Katherine Baker, RPA-CPhysician Assistant1316971831
- Cynthia Baltazar, M.D.Internal Medicine Physician1790782548
Verify Justin Adam Mackinnon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 2711461Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% more Medicare Part D claims than the average emergency medicine physician in 2024
271 Medicare Part D claims for 190 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Amoxicillin-Clavulanate Potass29 claims
- Cephalexin25 claims
- Cyclobenzaprine Hcl24 claims
- Ondansetron Hcl24 claims
- Prednisone23 claims
- Azithromycin20 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.
The MIPS final score for 2023 (Medicare payment program): 95.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Massena Hospital IncMassena, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin Adam Mackinnon among 5,025 emergency medicine physician records in New York
Justin Adam Mackinnon, MD is one of 5,025 emergency medicine physician records with a practice address in New York. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 52% of them.
- NPI issued2012 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2012 · median 2013 among the 3,232 with a school on file
- Record last updated2015 · 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 207P00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
16 emergency medicine physician records list a practice address in Potsdam
They are 16 of the 445 NPPES records with a practice address in Potsdam, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in Potsdam → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Ryan Coates, DOPotsdam, NY 136761275749087
- Lucas Da Matta, MDPotsdam, NY 136761952922767
- Rebecca Gilson, M.D.Potsdam, NY 136761477874014
- Brenda Healey, M.D.Potsdam, NY 136761780612457
- Rosemarie Heisse, D.O.Potsdam, NY 136761124124946
- Matthew Morgan, D.O.Potsdam, NY 136761326363037
- Michael Mullen, MDPotsdam, NY 136761730190265
- Laura Mulvey, M.D.Potsdam, NY 136761538502901
Common questions
What is Justin Adam Mackinnon, MD's NPI number?
Justin Adam Mackinnon, MD's National Provider Identifier (NPI) is 1447516224, issued on Apr 6, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Justin Adam Mackinnon, MD located?
The NPPES record lists a practice address at 50 Leroy St, Potsdam, NY, 13676. Phone: (315) 265-3300. Providers update this record themselves, so call before visiting.
How can I verify Justin Adam Mackinnon, MD's license?
NPPES lists New York license number 2711461, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Justin Adam Mackinnon, MD prescribe under Medicare Part D?
In 2024, Justin Adam Mackinnon, MD had 271 Medicare Part D claims for 190 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Justin Adam Mackinnon, MD's MIPS final score?
The 2023 MIPS final score is 95.4 of 100. 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.