Active NPI
Peggy J Maasjo, NP
- Nurse Practitioner
- Detroit Lakes, MN
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Nurse Practitioner
- License
- 299
- Practice address
- 1245 Washington Ave
Detroit Lakes, MN 56501-3923 - Phone
- (218) 846-2000
- NPI assigned
- Jul 17, 2006
- Last updated
- Oct 1, 2026
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Nurse Practitioner | 363L00000X | 299 | MN | Primary |
Addresses
Primary practice location
1245 Washington Ave
Detroit Lakes, MN 56501-3923
Mailing address
PO Box 5074
Sioux Falls, SD 57117-5074
Phone (605) 328-9419
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MN
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Nurse Practitioner
- Education
- Other, 1999
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1245 Washington Ave
Detroit Lakes, MN 56501-3905
Phone (218) 846-2000
1412 Main St
Hawley, MN 56549
Phone (218) 483-3564
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 88.99 of 100
- Quality
- 92.39
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 70.9
Merit-based Incentive Payment System (MIPS)
- Final score
- 82.73 of 100
- Quality
- 71.75
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 70.68
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Nurse Practitioner
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 299 | MN | MD | Acupuncturist |
| R0876577 | MN | MD | Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Sanford Medical Center Fargo | Current | Accepting new patients | |
| Sanford Medical Center Fargo | Current | Accepting new patients | |
| Sanford Medical Center Fargo | Past | Accepting new patients |
Locations
1027 Washington Ave
Detroit Lakes, MN 56501
Phone (218) 844-2300
1245 Washington Ave
Detroit Lakes, MN 56501
Phone (218) 846-2000
4000 28th Ave S
Moorhead, MN 56560
Phone (701) 234-3200
Organizations & group practices 3
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
dba Sanford 1717 Medical Building
- Family Medicine Physician
- West Fargo, ND
- NPI 1184917924
MN
-
dba Sanford POWER Center
- General Acute Care Hospital
- Fargo, ND
- NPI 1528009412
-
- Air Ambulance
- Fargo, ND
- NPI 1942415468
Hospital & facility affiliations 7
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Sanford Bemidji
- Ambulatory Surgical Clinic/Center
- Bemidji, MN
- NPI 1093876922
Hospital
-
dba Sanford 1717 Medical Building
- Family Medicine Physician
- West Fargo, ND
- NPI 1184917924
Hospital
-
dba Sanford Physical Therapy
- General Acute Care Hospital
- Fargo, ND
- NPI 1245519081
-
dba Sanford POWER Center
- General Acute Care Hospital
- Fargo, ND
- NPI 1528009412
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1153094400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1790812800000",
"number": "1508883117",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 5074",
"city": "SIOUX FALLS",
"state": "SD",
"postal_code": "571175074",
"telephone_number": "605-328-9419"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1245 WASHINGTON AVE",
"city": "DETROIT LAKES",
"state": "MN",
"postal_code": "565013923",
"telephone_number": "218-846-2000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MAASJO",
"first_name": "PEGGY",
"middle_name": "J",
"credential": "NP",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2006-07-17",
"last_updated": "2026-10-01",
"certification_date": "2026-10-01",
"status": "A"
},
"taxonomies": [
{
"code": "363L00000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner",
"state": "MN",
"license": "299",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Detroit Lakes, MN
- Kimberly Lucas
- Lutheran Social Service of Minnesota
- Lutheran Social Service of Minnesota
- Lutheran Social Service of Minnesota
- Trey William Lyngaas
- Darren Garold Mack, PHARM D
- Kelli Marie Mack, OTR
- Mahube-Otwa Community Action Partnership
- Mahube-Otwa Community Action Partnership (Mahube-Otwa CAP Family Health)
- Vinh Mai
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.