Doctor profile · Federal record

Dr. Larissa Halvorson, APRN, CNP

Nurse Practitioner · Registered Nurse · Mankato, MN

  • NPI 1861193930
  • Accepts Medicare
  • 3 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1025 Marsh St
Mankato, MN 560014752
(507) 625-4031

Credentials & registration

NPPES · NUCC
NPI registered
March 2023 — 3 yrs on file
Profile last updated
September 6, 2024
Year of graduation
2023 — 3 yrs since
Specialty taxonomy
363L00000X — NUCC code
State licenses (2)
Minnesota #10188 · Minnesota #2330422

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1861193930. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
137
Distinct HCPCS
5
Medicare allowed
$5,314
HCPCS Description Services Patients Avg allowed
69210 Removal of impacted ear wax 41 38 $25
99213 Established patient office or other outpatient visit, 20-29 minutes 36 33 $54
92504 Exam of ear using a microscope 26 22 $8
31575 Diagnostic exam of voice box using a flexible endoscope 23 22 $55
99214 Established patient office or other outpatient visit, 30-39 minutes 11 11 $79

In context: peer comparison

Among 19 peers in this city , average services per provider: 189. This provider delivers 0.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$76
Transactions
5
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Dexcom, Inc. 1 $17.49
Avanos Medical 1 $16.43
CooperSurgical, Inc. 1 $14.46
Exeltis, USA Inc. 1 $13.73
Organon Llc 1 $13.56

By nature of payment

Food and Beverage
$76

Frequently asked questions

Auto-generated from federal data
What is Dr. Larissa Halvorson's medical specialty?
Dr. Larissa Halvorson practices Nurse Practitioner in Mankato, MN.
Where does Dr. Larissa Halvorson practice?
Dr. Larissa Halvorson practices at 1025 Marsh St, Mankato, MN 560014752. Office phone: 5076254031.
What is Dr. Larissa Halvorson's NPI?
Dr. Larissa Halvorson's National Provider Identifier (NPI) is 1861193930, issued by NPPES.
Does Dr. Larissa Halvorson accept Medicare assignment?
Yes. Dr. Larissa Halvorson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Larissa Halvorson commonly perform?
Top Medicare-reported procedures in 2023: Removal of impacted ear wax (HCPCS 69210); Established patient office or other outpatient visit (HCPCS 99213); Exam of ear using a microscope (HCPCS 92504). Source: CMS Medicare Physician & Other Practitioners file.