Doctor profile · Federal record

Dr. Mara Thorsen, MD

Family Medicine Physician (CMS: Family Practice) · Grand Forks, ND

  • NPI 1598324790
  • Accepts Medicare
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
725 Hamline St
Grand Forks, ND 582032819
(701) 780-6810

Credentials & registration

NPPES · NUCC
NPI registered
June 2019 — 7 yrs on file
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
North Dakota #RL15800

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598324790. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
336
Distinct HCPCS
6
Medicare allowed
$31,598
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 164 122 $94
99213 Established patient office or other outpatient visit, 20-29 minutes 80 68 $63
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 50 50 $125
99238 Hospital discharge day management, 30 minutes or less 18 16 $78
99495 Transitional care management services for problem of at least moderate complexity 13 12 $132
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit 11 11 $160

In context: peer comparison

Among 24 peers in Grand Forks Family Medicine Physician, average services per provider: 70. This provider delivers 4.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
661
Patients
207
Total drug cost
$7,783
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 88 34 $1,010
Gabapentin Generic 64 17 $741
Lisinopril Generic 60 26 $467
Furosemide Generic 53 15 $336
Losartan Potassium Generic 52 20 $736
Hydrochlorothiazide Generic 51 18 $296
Levothyroxine Sodium Generic 50 17 $884
Metoprolol Succinate Generic 41 19 $758
Amlodipine Besylate Generic 37 14 $353
Escitalopram Oxalate Generic 34 12 $495

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mara Thorsen's medical specialty?
Dr. Mara Thorsen practices Family Medicine Physician in Grand Forks, ND.
Where does Dr. Mara Thorsen practice?
Dr. Mara Thorsen practices at 725 Hamline St, Grand Forks, ND 582032819. Office phone: 7017806810.
What is Dr. Mara Thorsen's NPI?
Dr. Mara Thorsen's National Provider Identifier (NPI) is 1598324790, issued by NPPES.
Does Dr. Mara Thorsen accept Medicare assignment?
Yes. Dr. Mara Thorsen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mara Thorsen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.