Quick answers
- Which hospitals does John Marr work at?
- Medicare's official clinician data lists John Marr at 2 hospitals: Medical City Fort Worth and Texas Health Harris Methodist Hospital Southwest F…. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Marr see patients?
- Medicare's clinician data lists 1 practice location in Fort Worth, TX. Call before your visit to confirm the address.
- What is John Marr's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does John Marr accept Medicare assignment?
- Yes. Medicare's clinician data says John Marr 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 Marr?
- (682) 224-3748, as listed in official Medicare / NPI Registry data.
- What is John Marr's NPI number?
- 1952898017. 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 Marr works
Medicare's Facility Affiliation Data lists John Marr at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Medical City Fort WorthFort Worth, TX · Acute Care Hospital · CCN 450672
- Texas Health Harris Methodist Hospital Southwest F…Fort Worth, TX · Acute Care Hospital · CCN 450779
Practice locations
Addresses where John Marr is enrolled with Medicare (CMS data updated 2026-10-02).
- 800 8th Ave, Suite 306Fort Worth, TX 76104 (682) 224‑3748
Group practices
Medicare enrollment lists John Marr as a member of these groups (CMS data updated 2026-10-02).
- Surgery Associates of NTX PLLC64 clinicians in the group
- North Texas Surgical Specialists PLLC31 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Fort Worth
Clinicians with the same Medicare primary specialty in Fort Worth, TX — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952898017 |
| 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