Quick answers
- Where does Gregory G. Johnson see patients?
- Medicare's clinician data lists 1 practice location in Cincinnati, OH. Call before your visit to confirm the address.
- What is Gregory G. Johnson's specialty?
- Medicare lists Addiction Medicine as the primary specialty.
- Does Gregory G. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory G. Johnson 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.
- Does Gregory G. Johnson offer telehealth?
- Medicare's clinician data says Gregory G. Johnson offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Gregory G. Johnson?
- (833) 510-4357, as listed in official Medicare / NPI Registry data.
- What is Gregory G. Johnson's NPI number?
- 1285669481. 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 G. Johnson is enrolled with Medicare (CMS data updated 2026-10-02).
- 446 Morgan StCincinnati, OH 45206 (833) 510‑4357
Group practices
Medicare enrollment lists Gregory G. Johnson as a member of this group (CMS data updated 2026-10-02).
- Brightview LLC116 clinicians in the group
Specialties
- Addiction Medicineprimary
Other addiction medicine doctors in Cincinnati
Clinicians with the same Medicare primary specialty in Cincinnati, OH — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Ohio State University College Of Medicine |
| Graduation year | 1979 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1285669481 |
| 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