Quick answers
- Where does Gregory Obrien see patients?
- Medicare's clinician data lists 1 practice location in Frankfort, IL. Call before your visit to confirm the address.
- What is Gregory Obrien's specialty?
- Medicare lists Clinical Social Worker as the primary specialty.
- Does Gregory Obrien accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory Obrien 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 Gregory Obrien?
- (708) 269-1516, as listed in official Medicare / NPI Registry data.
- What is Gregory Obrien's NPI number?
- 1114793627. 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 Gregory Obrien is enrolled with Medicare (CMS data updated 2026-10-02).
- 10217 W Lincoln HwyFrankfort, IL 60423 (708) 269‑1516
Group practices
Medicare enrollment lists Gregory Obrien as a member of this group (CMS data updated 2026-10-02).
- Platt Professional Counseling LLC12 clinicians in the group
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Frankfort
Clinicians with the same Medicare primary specialty in Frankfort, IL — not a recommendation.
Clinician information
| Graduation year | 2000 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1114793627 |
| 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