Physician Profile
Based in Niles, IL, Gary R. Fahrenbach, M.D. is listed in the NPI registry under rheumatology. Gary graduated from Loyola University of Chicago, Stritch School of Medicine in 1977. Medicare claims data shows Gary provided 18,059 services to 262 patients. The services billed most often include injection, golimumab, 1 mg, for intravenous use, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less. NPI 1043303803 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
7411 N MILWAUKEE AVE
Niles, IL 60714
Within Rheumatology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
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18,059 services · 262 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | Treatment | 96365 |
147 | More often than most peers in Rheumatology |
| Injection, golimumab, 1 mg, for intravenous use | Drug given | J1602 |
17,351 | As often as other peers in Rheumatology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
434 | More than most peers in Rheumatology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
58 | More often than most peers in Rheumatology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
49 | As often as other peers in Rheumatology |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
20 | As often as other peers in Rheumatology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Gary R. Fahrenbach is a rheumatologist in Niles, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Rheumatology”.
NPI registry
Gary R. Fahrenbach is listed at 7411 N Milwaukee Ave, Niles, IL 60714. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (773) 763-1818. Contact the office directly to confirm availability and scheduling.
NPI registry
Gary R. Fahrenbach's National Provider Identifier is 1043303803. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Gary R. Fahrenbach attended Loyola University of Chicago, Stritch School of Medicine, graduating in 1977. This comes from the CMS National Downloadable File.
CMS public data
Gary R. Fahrenbach has 49 years experience. Calculated from a graduation year of 1977, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Gary R. Fahrenbach provides treatments such as infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Gary R. Fahrenbach. If this is you, claiming it is free.
Guide.md
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