Quick answers
- Which hospitals does Katherine Warner work at?
- Medicare's official clinician data lists Katherine Warner at 1 hospital: Griffin Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Katherine Warner see patients?
- Medicare's clinician data lists 3 practice locations, including Wethersfield, CT, Derby, CT and Avon, CT. Call before your visit to confirm the address.
- What is Katherine Warner's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Katherine Warner accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine Warner 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 Katherine Warner?
- (860) 696-2400, as listed in official Medicare / NPI Registry data.
- What is Katherine Warner's NPI number?
- 1720841885. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Katherine Warner works
Medicare's Facility Affiliation Data lists Katherine Warner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Griffin HospitalDerby, CT · Acute Care Hospital · CCN 070031
Practice locations
Addresses where Katherine Warner is enrolled with Medicare (CMS data updated 2026-10-02).
- 1025 Silas Deane HwyWethersfield, CT 06109 (860) 696‑2400
- 130 Division StDerby, CT 06418 (203) 735‑7421
- 385 W Main StAvon, CT 06001 (860) 777‑6977
Group practices
Medicare enrollment lists Katherine Warner as a member of these groups (CMS data updated 2026-10-02).
- Hartford Healthcare Urgent Care Centers LLC198 clinicians in the group
- Emergency Physicians of Connecticut PC30 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Wethersfield
Clinicians with the same Medicare primary specialty in Wethersfield, CT — not a recommendation.
Clinician information
| Graduation year | 2018 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720841885 |
| 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