Provider Profile
Peggy J. Maasjo, NP
Unclaimed ProfileAbout Peggy Maasjo
Peggy J. Maasjo, NP is a nurse practitioner practicing in Detroit Lakes, MN. Medicare claims data shows Peggy provided 3,114 services to 1,346 patients. The services billed most often include injection, denosumab, 1 mg, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (218) 846-2000
- Email not available
Practice Locations
1245 WASHINGTON AVE
Detroit Lakes, MN 56501
Procedures Most Often Billed to Medicare
3,114 services · 1,346 patients · 20 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
189 | More often than most peers in Nurse Practitioner |
| Removal of impacted ear wax by washing | Procedure | 69209 |
20 | More often than most peers in Nurse Practitioner |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
51 | More often than most peers in Nurse Practitioner |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
45 | More often than most peers in Nurse Practitioner |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
34 | More often than most peers in Nurse Practitioner |
| Sarscv2 vac 30mcg trs-suc im | Treatment | 91320 |
32 | More often than most peers in Nurse Practitioner |
| Injection, denosumab, 1 mg | Drug given | J0897 |
1,320 | Less often than most peers in Nurse Practitioner |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
324 | More than most peers in Nurse Practitioner |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
216 | More often than most peers in Nurse Practitioner |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
186 | More often than most peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nurse practitioners at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 29 related providers in 4 groups
Other nurse practitioners in Detroit Lakes 5
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1999 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in MN who bill this service to Medicare most often.
Common questions
What is Peggy J. Maasjo's specialty?
Peggy J. Maasjo is a nurse practitioner in Detroit Lakes, MN. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Peggy J. Maasjo?
Peggy J. Maasjo is listed at 1245 Washington Ave, Detroit Lakes, MN 56501. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Peggy J. Maasjo?
The number on file is (218) 846-2000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Peggy J. Maasjo?
Peggy J. Maasjo's National Provider Identifier is 1508883117. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Peggy J. Maasjo's education?
Peggy J. Maasjo attended Other, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Peggy J. Maasjo have?
Peggy J. Maasjo has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What is Peggy J. Maasjo known for?
According to Medicare billing data, Peggy J. Maasjo performs procedures including insertion of needle into vein for collection of blood sample and removal of impacted ear wax by washing; provides treatments such as injection of drug or substance under skin or into muscle and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Peggy J. Maasjo's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Peggy J. Maasjo. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.