Doctor profile · Federal record

Dr. John Grumish, DC

Chiropractor (CMS: Chiropractic) · Bourbonnais, IL

  • NPI 1083643647
  • 48 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
40 Briarcliff Professional Center
Bourbonnais, IL 609141775
(815) 939-0990
fax (815) 939-0822

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
June 5, 2013
Year of graduation
1978 — 48 yrs since
Specialty taxonomy
111N00000X — NUCC code
State license (1)
Illinois #038-003849
Medicaid (2)
IL #038007503 · IL #038003849

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083643647. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
632
Distinct HCPCS
2
Medicare allowed
$19,281
HCPCS Description Services Patients Avg allowed
98940 Chiropractic manipulative treatment, 1-2 spinal regions 325 30 $25
98941 Chiropractic manipulative treatment, 3-4 spinal regions 307 20 $36

In context: peer comparison

Among 5 peers in Bourbonnais Chiropractor, average services per provider: 310. This provider delivers 2.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. John Grumish's medical specialty?
Dr. John Grumish practices Chiropractor in Bourbonnais, IL.
Where does Dr. John Grumish practice?
Dr. John Grumish practices at 40 Briarcliff Professional Center, Bourbonnais, IL 609141775. Office phone: 8159390990.
What is Dr. John Grumish's NPI?
Dr. John Grumish's National Provider Identifier (NPI) is 1083643647, issued by NPPES.
Does Dr. John Grumish accept Medicare assignment?
Dr. John Grumish does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. John Grumish commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 1-2 spinal regions (HCPCS 98940); Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941). Source: CMS Medicare Physician & Other Practitioners file.