Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Nurse Practitioner

John B. Grimshaw, NP

Works at hospitals in Bluffton, IN · Fort Wayne, IN · Ft Wayne, IN · Indiana

Summary

John B. Grimshaw, NP (Nurse Practitioner) is listed by Medicare at 4 hospitals in Bluffton, IN, Fort Wayne, IN and Ft Wayne, IN. NPI 1902314958. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John B. Grimshaw, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
9Years since medical school (graduated 2017)
MaleGender (as listed)
Orthopaedics-Indianapolis IncGroup practice (+1 more)

Quick answers

Which hospitals does John B. Grimshaw work at?
Medicare's official clinician data lists John B. Grimshaw at 4 hospitals: Bluffton Regional Medical Center, Dupont Hospital LLC, Lutheran Hospital of Indiana and The Orthopaedic Hospital of Lutheran Health Networ…. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John B. Grimshaw see patients?
Medicare's clinician data lists 2 practice locations, including Fort Wayne, IN. Call before your visit to confirm the address.
What is John B. Grimshaw's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does John B. Grimshaw accept Medicare assignment?
Yes. Medicare's clinician data says John B. Grimshaw 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 John B. Grimshaw?
(800) 566-5659, as listed in official Medicare / NPI Registry data.
What is John B. Grimshaw's NPI number?
1902314958. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John B. Grimshaw works

Medicare's Facility Affiliation Data lists John B. Grimshaw at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where John B. Grimshaw is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists John B. Grimshaw as a member of these groups (CMS data updated 2026-10-02).

  • Orthopaedics-Indianapolis Inc371 clinicians in the group
  • Fort Wayne Orthopaedics, LLC65 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Indiana →

Other nurse practitioners in Fort Wayne

Clinicians with the same Medicare primary specialty in Fort Wayne, IN — not a recommendation.

All nurse practitioners in Fort Wayne →

Clinician information

CredentialNP
Graduation year2017
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1902314958
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians