Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Melissa Louise Rosas, MD

Individual provider Emergency Medicine Physician · NPI 1144482381

Dr. Melissa Louise Rosas, MD practises Emergency Medicine in Duluth, Minnesota. Graduated from University of Minnesota Medical School in 2008, 18 years ago. Practices with St Marys Medical Center, a 101-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
18
Trained at
University of Minnesota Medical School
Licensed in
MN
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

400 E 3rd St Essentia Health Duluth Clinic
Duluth, MN 55805-1951 Not confirmed with CMS for 15 years — call before visiting
Phone: (218) 786-8364
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 53189 (MN)

Record details

NPI number1144482381
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2008
Last updated in NPPESJuly 21, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 2008 (18 years in practice)
Group practice St Marys Medical Center — 101 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients108
Services billed 114 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at St Marys Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 101 clinicians in the practice; 12 are shown here.

Other providers in Duluth