Quick answers
- Which hospitals does John D. Gardner work at?
- Medicare's official clinician data lists John D. Gardner at 5 hospitals: Clay County Medical Center, LMH, Nemaha Valley Community Hospital, Stormont Vail Health Flint Hills, LLC and Stormont Vail Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John D. Gardner see patients?
- Medicare's clinician data lists 1 practice location in Topeka, KS. Call before your visit to confirm the address.
- What is John D. Gardner's specialty?
- Medicare lists Rheumatology as the primary specialty, and also Internal Medicine.
- Does John D. Gardner accept Medicare assignment?
- Yes. Medicare's clinician data says John D. Gardner 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 John D. Gardner offer telehealth?
- Medicare's clinician data says John D. Gardner offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John D. Gardner?
- (785) 354-9591, as listed in official Medicare / NPI Registry data.
- What is John D. Gardner's NPI number?
- 1265444368. 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 D. Gardner works
Medicare's Facility Affiliation Data lists John D. Gardner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Clay County Medical CenterClay Center, KS · Critical Access Hospital · CCN 171371
- LMHLawrence, KS · Acute Care Hospital · CCN 170137
- Nemaha Valley Community HospitalSeneca, KS · Critical Access Hospital · CCN 171315
- Stormont Vail Health Flint Hills, LLCJunction City, KS · Acute Care Hospital · CCN 170074
- Stormont Vail HospitalTopeka, KS · Acute Care Hospital · CCN 170086
Practice locations
Addresses where John D. Gardner is enrolled with Medicare (CMS data updated 2026-10-02).
- 901 SW Garfield AveTopeka, KS 66606 (785) 354‑9591
Group practices
Medicare enrollment lists John D. Gardner as a member of this group (CMS data updated 2026-10-02).
- Cotton-O'neil Clinic Revocable Trust666 clinicians in the group
Specialties
- Rheumatologyprimary
- Internal Medicinealso
Other rheumatologists in Kansas
Clinicians with the same Medicare primary specialty in Kansas — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Kansas School Of Med (kc/wich/sal) |
| Graduation year | 1976 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1265444368 |
| 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