Quick answers
- Where does Gary Grad see patients?
- Medicare's clinician data lists 2 practice locations, including Barrington, IL and Rolling Meadows, IL. Call before your visit to confirm the address.
- What is Gary Grad's specialty?
- Medicare lists Hematology/Oncology as the primary specialty.
- Does Gary Grad accept Medicare assignment?
- Yes. Medicare's clinician data says Gary Grad 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 Gary Grad?
- (847) 885-4100, as listed in official Medicare / NPI Registry data.
- What is Gary Grad's NPI number?
- 1629039227. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Gary Grad is enrolled with Medicare (CMS data updated 2026-10-02).
- 27750 W Il Route 22, Suite G70Barrington, IL 60010 (847) 885‑4100
- 3701 Algonquin Rd, Suite 900Rolling Meadows, IL 60008 (847) 870‑4100
Group practices
Medicare enrollment lists Gary Grad as a member of this group (CMS data updated 2026-10-02).
- Northwest Oncology and Hematology SC22 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629039227 |
| Corrections | Report 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians