NPPES file of Aug 9, 2026

Sean Grimm, MD

Neurology Physician · Chicago, IL

Sean Grimm, MD is a neurology physician with a practice address in Chicago, Illinois, and NPI 1235346941, issued on May 16, 2007. Check the license (Illinois 036-118109, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235346941
Name
Sean Grimm
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
036-118109 IL
Self-reported in NPPES; status is on the state search
Practice location
1725 W Harrison St Ste 1010, Chicago, IL 60612
Phone
(312) 226-2371
Enumerated
May 16, 2007
Record last updated
Sep 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(312) 942-1783
Medicaid ID
036118109 IL
Medicare enrollment
Enrolled (PECOS I20070714000052); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At San Antonio, 2001
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1725 W Harrison St Ste 1010

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Heather Burke, APRNAdult Health Nurse Practitioner1255856894
  2. Kara Conroy, APRNNurse Practitioner1821721812
  3. Helen Gharwan, M.D.Hematology & Oncology Physician1770745424
  4. Shivi Jain, M.D.Hematology & Oncology Physician1841529625
  5. Laura KalasAcute Care Nurse Practitioner1417355397
  6. Audrey Kam, M.D.Hematology & Oncology Physician1659635977

Verify Sean Grimm in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036-118109
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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90% fewer Medicare Part D claims than the average neurology physician in 2024

138 Medicare Part D claims for 38 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Sean Grimm138
  2. Specialty average1,370

Most prescribed

  1. Lamotrigine24 claims
  2. Levetiracetam22 claims
  3. Dexamethasone19 claims
  4. Ondansetron Hcl13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Rush University Medical GroupChicago, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sean Grimm among 952 neurology physician records in Illinois

Sean Grimm, MD is one of 952 neurology physician records with a practice address in Illinois. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 32% of them.

  • NPI issued2007 · 32% of these records are older, 58% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2001 · median 2006 among the 573 with a school on file
  • Record last updated2021 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Illinois

There are 952 neurology physician records in Illinois.

The 8 neurology physician records with the nearest ZIP codes

  1. Antoaneta Balabanov, MDChicago, IL 606121770578304
  2. Joshua Baron, MDChicago, IL 606121336112523
  3. Donna Bergen, MDChicago, IL 606121548256357
  4. Michael Carrithers, MDChicago, IL 606121073595427
  5. Cynthia Comella, MDChicago, IL 606121588640940
  6. Jacob Fox, MDChicago, IL 606121841242716
  7. Christopher Goetz, MDChicago, IL 606121124004585
  8. Michael Kelly, MDChicago, IL 606121558329086

Common questions

What is Sean Grimm, MD's NPI number?

Sean Grimm, MD's National Provider Identifier (NPI) is 1235346941, issued on May 16, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Sean Grimm, MD located?

The NPPES record lists a practice address at 1725 W Harrison St Ste 1010, Chicago, IL, 60612. Phone: (312) 226-2371. Providers update this record themselves, so call before visiting.

How can I verify Sean Grimm, MD's license?

NPPES lists Illinois license number 036-118109, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Sean Grimm, MD prescribe under Medicare Part D?

In 2024, Sean Grimm, MD had 138 Medicare Part D claims for 38 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.