Doctor profile · Federal record

Dr. Aaron Gronseth, M.D.

Emergency Medicine Physician · Emergency Medicine Physician · La Crosse, WI

  • NPI 1962883280
  • 11 yrs on file
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
700 West Ave S
La Crosse, WI 546014783
(608) 785-0940
Mailing address
Po Box 1510
Eau Claire, WI 547021510

Credentials & registration

NPPES · NUCC
NPI registered
June 2015 — 11 yrs on file
Profile last updated
October 1, 2020
Specialty taxonomy
207P00000X — NUCC code
State licenses (2)
Wisconsin #73864 · Nevada #17666

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1962883280. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
323
Distinct HCPCS
4
Medicare allowed
$48,813
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 165 159 $166
99284 Emergency department visit with moderate level of medical decision making 98 96 $114
99291 Critical care, first 30-74 minutes 46 45 $202
99283 Emergency department visit with low level of medical decision making 14 14 $68

In context: peer comparison

Among 21 peers in this city , average services per provider: 69. This provider delivers 4.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
70
Patients
55
Total drug cost
$835
Drug Type Claims Patients Total cost
Cefdinir Generic 21 21 $502
Prednisone Generic 20 20 $49
Furosemide Generic 15 0 $69
Doxycycline Monohydrate Generic 14 14 $215

Frequently asked questions

Auto-generated from federal data
What is Dr. Aaron Gronseth's medical specialty?
Dr. Aaron Gronseth practices Emergency Medicine Physician in La Crosse, WI.
Where does Dr. Aaron Gronseth practice?
Dr. Aaron Gronseth practices at 700 West Ave S, La Crosse, WI 546014783. Office phone: 6087850940.
What is Dr. Aaron Gronseth's NPI?
Dr. Aaron Gronseth's National Provider Identifier (NPI) is 1962883280, issued by NPPES.
What procedures does Dr. Aaron Gronseth commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.