DR. MELISSA LOUISE ROSAS M.D.
NPI 1144482381
Emergency Medicine in Duluth, MN
About Dr. Melissa Louise Rosas M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MELISSA LOUISE ROSAS M.D. (NPI 1144482381) is an individual emergency medicine provider in Duluth, Minnesota, licensed in Minnesota (53189) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS, is affiliated with Essentia Health St Mary's Medical Center, and is a graduate of University Of Minnesota Medical School (2008).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Melissa Louise Rosas M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Melissa Rosas reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Duluth, MN 55805
- Reassigned Medicare billing, Minnesota enrollment
- Medicare enrollment name: St Marys Medical Center
- 179 clinicians in this Medicare group
Superior, WI 54880
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: St Marys Hospital Of Superior
- 381 clinicians in this Medicare group
Moose Lake, MN 55767
- Reassigned Medicare billing, Minnesota enrollment
- 213 clinicians in this Medicare group
Grand Rapids, MN 55744
- Reassigned Medicare billing, Minnesota enrollment
- 171 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Essentia Health St Mary's Medical Center
Acute Care Hospitals · Duluth, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55805 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Melissa Rosas's NPI number?
The NPI number for Melissa Rosas is 1144482381. It was assigned to this individual provider in the NPPES registry on June 30, 2008. The provider is also known as Dr. Melissa Louise Sherman.
Where is Melissa Rosas located?
Melissa Rosas practices at 400 E 3rd St Essentia Health Duluth Clinic, Duluth, MN 55805. The listed phone number is (218) 786-8364.
What is Melissa Rosas's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Melissa Rosas enrolled in Medicare?
Yes. Melissa Rosas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Melissa Rosas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Rosas reassigns Medicare benefits to 4 organizations: St. Mary's Medical Center (Duluth, MN), St. Mary's Hospital Of Superior (Superior, WI), Essentia Health Moose Lake (Moose Lake, MN) and Deer River Healthcare Center, Inc. (Grand Rapids, MN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Melissa Rosas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Melissa Rosas affiliated with any hospitals?
According to CMS data, Melissa Rosas is affiliated with Essentia Health St Mary's Medical Center.
When was this NPI record last updated?
The NPPES record for Melissa Rosas was last updated on July 21, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Melissa Louise Rosas, M.D. · NPI 1144482381
Emergency Medicine physician in Duluth, Minnesota. Individual provider, active in the CMS NPPES registry since June 30, 2008.
## Identity
- **NPI:** 1144482381 (Entity type: Individual)
- **Enumerated:** June 30, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 53189 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 E 3RD ST, ESSENTIA HEALTH DULUTH CLINIC, Duluth, MN 55805-1951
- **Phone:** (218) 786-8364
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): St. Mary's Medical Center (NPI 1013933936, Duluth, MN); St. Mary's Hospital Of Superior (NPI 1083657886, Superior, WI); Essentia Health Moose Lake (NPI 1154959880, Moose Lake, MN); Deer River Healthcare Center, Inc. (NPI 1093152423, Grand Rapids, MN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Minnesota Medical School, class of 2008
## Record status
- **NPPES last updated:** July 21, 2011
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Source: [NPI Profile](https://npiprofile.com/npi/1144482381) · Data from the CMS NPPES public registry.