Doctor profile · Federal record

Dr. Sean Grimm, MD

Neurology Physician (CMS: Neurology) · Chicago, IL

  • NPI 1235346941
  • Accepts Medicare
  • 25 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1725 W Harrison St Ste 1010
Chicago, IL 606123841
(312) 226-2371
fax (312) 942-1783

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
September 15, 2021
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
2084N0400X — NUCC code
State license (1)
Illinois #036-118109
Medicaid
IL #036118109

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235346941. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
135
Distinct HCPCS
4
Medicare allowed
$22,542
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 60 32 $189
99215 Established patient office or other outpatient visit, 40-54 minutes 34 22 $152
99443 Telephone medical discussion with physician, 21-30 minutes 27 20 $102
99205 New patient office or other outpatient visit, 60-74 minutes 14 14 $233

In context: peer comparison

Among 86 peers in Chicago Neurology Physician, average services per provider: 171. This provider delivers 0.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
84
Patients
0
Total drug cost
$2,945
Drug Type Claims Patients Total cost
Levetiracetam Generic 31 0 $1,849
Lamotrigine Generic 29 0 $429
Gabapentin Generic 13 0 $264
Dexamethasone Generic 11 0 $403

Frequently asked questions

Auto-generated from federal data
What is Dr. Sean Grimm's medical specialty?
Dr. Sean Grimm practices Neurology Physician in Chicago, IL.
Where does Dr. Sean Grimm practice?
Dr. Sean Grimm practices at 1725 W Harrison St Ste 1010, Chicago, IL 606123841. Office phone: 3122262371.
What is Dr. Sean Grimm's NPI?
Dr. Sean Grimm's National Provider Identifier (NPI) is 1235346941, issued by NPPES.
Does Dr. Sean Grimm accept Medicare assignment?
Yes. Dr. Sean Grimm accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sean Grimm commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99215); Telephone medical discussion with physician (HCPCS 99443). Source: CMS Medicare Physician & Other Practitioners file.