Quick answers
- Which hospitals does Tiffany Johnson work at?
- Medicare's official clinician data lists Tiffany Johnson at 1 hospital: Madison Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Tiffany Johnson see patients?
- Medicare's clinician data lists 2 practice locations, including London, OH and Westerville, OH. Call before your visit to confirm the address.
- What is Tiffany Johnson's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Tiffany Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Tiffany 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.
- What is the phone number for Tiffany Johnson?
- (740) 845-7500, as listed in official Medicare / NPI Registry data.
- What is Tiffany Johnson's NPI number?
- 1740899459. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Tiffany Johnson works
Medicare's Facility Affiliation Data lists Tiffany Johnson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Madison HealthLondon, OH · Acute Care Hospital · CCN 360189
Practice locations
Addresses where Tiffany Johnson is enrolled with Medicare (CMS data updated 2026-10-02).
- 55 Park Ave, Suite 275London, OH 43140 (740) 845‑7500
- 6100 N Hamilton RdWesterville, OH 43081 (614) 293‑4969
Group practices
Medicare enrollment lists Tiffany Johnson as a member of these groups (CMS data updated 2026-10-02).
- Osup Community Outreach LLC151 clinicians in the group
- Mount Carmel - OSU Physician Alliance LLC16 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in London
Clinicians with the same Medicare primary specialty in London, OH — not a recommendation.
Clinician information
| Graduation year | 2020 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740899459 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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