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Hospitalist

Bobby Diniotis, MD

Works at hospitals in Oak Lawn, IL · Chicago, IL · Illinois

Summary

Bobby Diniotis, MD (Hospitalist) is listed by Medicare at 3 hospitals in Oak Lawn, IL and Chicago, IL. NPI 1215348149. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Bobby Diniotis, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

HospitalistPrimary specialty
YesAccepts Medicare assignment
15Years since medical school (graduated 2011)
MaleGender (as listed)
Insight Chicago IncGroup practice

Quick answers

Which hospitals does Bobby Diniotis work at?
Medicare's official clinician data lists Bobby Diniotis at 3 hospitals: Advocate Christ Hospital & Medical Center, Insight Hospital and Medical Center Chicago and Rush University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Bobby Diniotis see patients?
Medicare's clinician data lists 1 practice location in Chicago, IL. Call before your visit to confirm the address.
What is Bobby Diniotis's specialty?
Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
Does Bobby Diniotis accept Medicare assignment?
Yes. Medicare's clinician data says Bobby Diniotis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Bobby Diniotis?
(708) 382-1498, as listed in official Medicare / NPI Registry data.
What is Bobby Diniotis's NPI number?
1215348149. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Bobby Diniotis works

Medicare's Facility Affiliation Data lists Bobby Diniotis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Bobby Diniotis is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Bobby Diniotis as a member of this group (CMS data updated 2026-10-02).

  • Insight Chicago Inc141 clinicians in the group

Specialties

Find other Hospitalist doctors in Illinois →

Other hospitalists in Chicago

Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.

All hospitalists in Chicago →

Clinician information

CredentialMD
Graduation year2011
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1215348149
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians