Michael J. Gruber, CRNA
Certified Registered Nurse Anesthetist · Chicago, IL
Michael J. Gruber, CRNA is a certified registered nurse anesthetist with a practice address in Chicago, Illinois, and NPI 1770705949, issued on May 3, 2007. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael J. Gruber
- Credential
- CRNA
- Primary taxonomy
- Certified Registered Nurse Anesthetist 367500000X
- License number
- 28159368A IN
Self-reported in NPPES; status is on the state search - Practice location
- 251 E Huron St, Chicago, IL 60611
- Phone
- (312) 926-2000
- Enumerated
- May 3, 2007
- Record last updated
- Jan 23, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicaid IDs
- 200471810A IN
280680399 IL - Medicare enrollment
- Enrolled (PECOS I20090515000339); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest certified registered nurse anesthetist records → All 2,444 in Illinois → Look up another NPI →
Also registered at 251 E Huron St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Dena Abdelhameed, PHARM.D.Nuclear Pharmacist1073954301
Verify Michael J. Gruber in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $35.13
2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 24,076 providers of this specialty with any payment received $135.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Northwestern Medical Faculty FoundationChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael J. Gruber among 2,444 certified registered nurse anesthetist records in Illinois
Michael J. Gruber, CRNA is one of 2,444 certified registered nurse anesthetist records with a practice address in Illinois. 82% 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 27% of them.
- NPI issued2007 · 27% of these records are older, 66% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2003 · median 2015 among the 1,926 with a school on file
- Record last updated2017 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Certified Registered Nurse Anesthetist providers in Illinois
There are 2,444 certified registered nurse anesthetist records in Illinois.
All 2,444 in Illinois → Every provider in Chicago → Certified Registered Nurse Anesthetist nationwide →
The 8 certified registered nurse anesthetist records with the nearest ZIP codes
- Teresita Banez, CRNAChicago, IL 606111427028679
- Susan Carpenter, CRNAChicago, IL 606111164484622
- Linda Chambers, CRNAChicago, IL 606111144282088
- David Clanton, CRNAChicago, IL 606111225030711
- Julane Clarke, CRNAChicago, IL 606111013970029
- Nancy Decorrevant, CRNAChicago, IL 606111912961574
- Eileen Dollear, CRNAChicago, IL 606111417919515
- Jeanette Dubay-McDermit, CRNAChicago, IL 606111427052885
Common questions
What is Michael J. Gruber, CRNA's NPI number?
Michael J. Gruber, CRNA's National Provider Identifier (NPI) is 1770705949, issued on May 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Gruber, CRNA located?
The NPPES record lists a practice address at 251 E Huron St, Chicago, IL, 60611. Phone: (312) 926-2000. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Gruber, CRNA's license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
What is Michael J. Gruber, CRNA's MIPS final score?
The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.