Quick answers
- Where does John Mark Tohlen see patients?
- Medicare's clinician data lists 1 practice location in Corinth, TX. Call before your visit to confirm the address.
- What is John Mark Tohlen's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does John Mark Tohlen accept Medicare assignment?
- Yes. Medicare's clinician data says John Mark Tohlen 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 Mark Tohlen?
- (940) 497-4900, as listed in official Medicare / NPI Registry data.
- What is John Mark Tohlen's NPI number?
- 1598298077. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John Mark Tohlen is enrolled with Medicare (CMS data updated 2026-10-02).
- 3001 FM, 2181 Suite 300Corinth, TX 76210 (940) 497‑4900
Group practices
Medicare enrollment lists John Mark Tohlen as a member of this group (CMS data updated 2026-10-02).
- Dixdowell and Associates3 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Texas
Clinicians with the same Medicare primary specialty in Texas — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical Branch At Galveston |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1598298077 |
| 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
- 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