MICHAELA A MERRILL MAYFIELD PHD
NPI 1750573044
Psychologist in Duluth, MN
About Michaela A Merrill Mayfield Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAELA A MERRILL MAYFIELD PHD (NPI 1750573044) is an individual psychologist in Duluth, Minnesota, licensed in Minnesota (LP5028) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS, is affiliated with Essentia Health St Mary's Medical Center, and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 4
Accepted Insurance
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
Michaela A Merrill Mayfield Phd 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 Michaela Merrill Mayfield 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
- 1,460 clinicians in this Medicare group
Duluth, MN 55811
- Reassigned Medicare billing, Minnesota enrollment
- 31 clinicians in this Medicare group
Duluth, MN 55811
- Reassigned Medicare billing, Minnesota enrollment
- 8 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
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 2
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, MNEssentia Health Duluth
Acute Care Hospitals · Duluth, MNOther 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 Michaela Merrill Mayfield's NPI number?
The NPI number for Michaela Merrill Mayfield is 1750573044. It was assigned to this individual provider in the NPPES registry on August 10, 2007. The provider is also known as Michaela A Merrill Phd.
Where is Michaela Merrill Mayfield located?
Michaela Merrill Mayfield practices at 400 E 3rd St Essentia Health Duluth Clinic, Duluth, MN 55805. The listed phone number is (218) 786-1186.
What is Michaela Merrill Mayfield's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is Michaela Merrill Mayfield enrolled in Medicare?
Yes. Michaela Merrill Mayfield 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 Michaela Merrill Mayfield's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michaela Merrill Mayfield reassigns Medicare benefits to 4 organizations: The Duluth Clinic, Ltd (Duluth, MN), Smdc Medical Center (Duluth, MN), Polinsky Medical Rehabilitation Center (Duluth, MN) and St. Mary's Hospital Of Superior (Superior, WI). 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 Michaela Merrill Mayfield's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michaela Merrill Mayfield accept?
Health plans from Sanford Health Plan and Security Health Plan list Michaela Merrill Mayfield as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Michaela Merrill Mayfield affiliated with any hospitals?
According to CMS data, Michaela Merrill Mayfield is affiliated with Essentia Health St Mary's Medical Center and Essentia Health Duluth.
When was this NPI record last updated?
The NPPES record for Michaela Merrill Mayfield was last updated on October 17, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.