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Emergency Medicine Providers in Potsdam, NY

Browse 16 Emergency Medicine providers listed in NPPES with a practice address in Potsdam, New York.

16 Healthcare Providers

How Potsdam compares with the U.S.

16 active clinicians in Emergency Medicine list a practice address in Potsdam, NY in the NPI registry.

Potsdam has fewer than 10,000 residents, so rates per 100,000 people change a lot with each clinician and are not compared here.

100% of clinicians in Emergency Medicine in Potsdam listed in the CMS Medicare file (11 of 11) accept Medicare assignment. That is higher than the New York share of 93%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

9% of clinicians in Emergency Medicine in Potsdam listed in the CMS Medicare file (1 of 11) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the New York share of 8%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File.

Emergency Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Emergency Medicine practitioners in Potsdam, NY

Source: CMS PECOS
PECOS Enrolled Specialists 13 In Potsdam, NY
Part B Lab & Imaging Eligible 13 Diagnostic Referrals
DME Ordering Eligible 13 Durable Medical Equipment
Home Health Agency Referrals 13 HHA Ordering Eligible
Showing 1โ€“16 of 16 providers
With recent CMS data first, then Aโ€“Z

Dr. Ryan Coates , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
50 Leroy St, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1275749087
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Dr. Lucas Da Matta , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
50 Leroy St, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1952922767
View Full Profile

Dr. Rebecca Brooke Gilson , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
50 Leroy St, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1477874014
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Dr. Brenda J Healey , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
50 Leroy St, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1780612457
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Dr. Rosemarie Heisse , DO

Emergency Medicine

Active NPI Status
50 Leroy St, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1124124946
View Full Profile

Dr. Zachary Philip Johannesson , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
50 Leroy St, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1184203663
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Dr. Justin Adam Mackinnon , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
50 Leroy St, Department Of Emergency Medicine, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1447516224
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Dr. Matthew L. Morgan , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
50 Leroy St, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1326363037
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Dr. Laura Mulvey , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
50 Leroy St, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1538502901
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Dr. Adam A Quinn , MD

Emergency Medicine

Active NPI Status
50 Leroy St, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1104288687
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Dr. Zachary Reed , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
50 Leroy St, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1053931105
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Dr. Riccardo Turrin , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
50 Leroy St, Potsdam, NY 136761786
Phone: 3152651120
NPI Identifier 1477590628
View Full Profile

Dr. Karl M. Unkenholz , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
50 Leroy St, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1215914429
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Dalton Labarge

Emergency Medicine

Active NPI Status
50 Leroy St, Potsdam, NY 136761786
Phone: 3152653300
NPI Identifier 1821784513
View Full Profile

Dr. Michael Mullen , MD

Emergency Medicine

Active NPI Status
50 Leroy St, Potsdam, NY 136761786
Phone: 3152651120
NPI Identifier 1730190265
View Full Profile

Karyn Sullivan , PA

Emergency Medicine

Active NPI Status
50 Leroy St, Potsdam, NY 136761786
Phone: 3157822620
NPI Identifier 1033220884
View Full Profile

Frequently Asked Questions about Emergency Medicine in Potsdam

How do I check a Emergency Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the New York licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.

Other Specialties in Potsdam

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