Quick answers
- Which hospitals does Mark A. Lyons Jr. work at?
- Medicare's official clinician data lists Mark A. Lyons Jr. at 1 hospital: Methodist Dallas Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark A. Lyons Jr. see patients?
- Medicare's clinician data lists 1 practice location in Dallas, TX. Call before your visit to confirm the address.
- What is Mark A. Lyons Jr.'s specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Mark A. Lyons Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Mark A. Lyons Jr. 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 Mark A. Lyons Jr.?
- (214) 947-2385, as listed in official Medicare / NPI Registry data.
- What is Mark A. Lyons Jr.'s NPI number?
- 1609079904. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark A. Lyons Jr. works
Medicare's Facility Affiliation Data lists Mark A. Lyons Jr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Methodist Dallas Medical CenterDallas, TX · Acute Care Hospital · CCN 450051
Practice locations
Addresses where Mark A. Lyons Jr. is enrolled with Medicare (CMS data updated 2026-10-02).
- 1441 N Beckley AveDallas, TX 75203 (214) 947‑2385
Group practices
Medicare enrollment lists Mark A. Lyons Jr. as a member of this group (CMS data updated 2026-10-02).
- Medhealth450 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Dallas
Clinicians with the same Medicare primary specialty in Dallas, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Meharry Medical College School Of Medicine |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609079904 |
| 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