Thomas Joseph Gruber, M.D.
Anesthesiology Physician · Rockford, IL
Thomas Joseph Gruber, M.D. is an anesthesiology physician with a practice address in Rockford, Illinois, and NPI 1811085202, issued on Oct 11, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Thomas Joseph Gruber
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 41045 CO
2003027199 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1603 Arden Ave, Rockford, IL 61107
- Phone
- (815) 262-3001
- Enumerated
- Oct 11, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (815) 229-2508
- Medicare enrollment
- Enrolled (PECOS I20041101000530); accepts Medicare assignment
- Medical or professional school
- Vanderbilt University School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 2,575 in Illinois → Look up another NPI →
Verify Thomas Joseph Gruber in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $42.78
2 payments; by number, the most common kind was food and beverage; the largest payer was Mindray DS USA, Inc. The 17,774 providers of this specialty with any payment received $669.59 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 2 group practices
- Carle Health Care IncorporatedPeoria, IL
- Methodist Medical Center OF IllinoisPeoria, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Joseph Gruber among 2,575 anesthesiology physician records in Illinois
Thomas Joseph Gruber, M.D. is one of 2,575 anesthesiology physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 61% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1985 · median 2006 among the 1,608 with a school on file
- Record last updated2007 · 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 207L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
44 anesthesiology physician records list a practice address in Rockford
They are 44 of the 3,893 NPPES records with a practice address in Rockford, and 2,575 anesthesiology physician records in Illinois.
All 2,575 in Illinois → Every provider in Rockford → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Azhar Kothawala, M.D.Rockford, IL 611071891042552
- Shahmohammed Parves, MDRockford, IL 611081538394838
- Gary Anderson, MDRockford, IL 611031336100940
- George Arends, M.D.Loves Park, IL 611111780628008
- Stephen Cotton, MDRockford, IL 611031891756888
- Norbert Duttlinger, M.D.Loves Park, IL 611111407891385
- Lowell Enser, M.D.Loves Park, IL 611111154366888
- Sammy Farag, M.D.Loves Park, IL 611111851328280
Common questions
What is Thomas Joseph Gruber, M.D.'s NPI number?
Thomas Joseph Gruber, M.D.'s National Provider Identifier (NPI) is 1811085202, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Joseph Gruber, M.D. located?
The NPPES record lists a practice address at 1603 Arden Ave, Rockford, IL, 61107. Phone: (815) 262-3001. Providers update this record themselves, so call before visiting.
How can I verify Thomas Joseph Gruber, M.D.'s license?
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.
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.