Quick answers
- Which hospitals does Mark J. Weisberg work at?
- Medicare's official clinician data lists Mark J. Weisberg at 2 hospitals: Valley Baptist Medical Center- Brownsville and VHS Harlingen Hospital Company LLC. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark J. Weisberg see patients?
- Medicare's clinician data lists 3 practice locations, including Brownsville, TX and Harlingen, TX. Call before your visit to confirm the address.
- What is Mark J. Weisberg's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Family Practice and Hospitalist.
- Does Mark J. Weisberg accept Medicare assignment?
- Yes. Medicare's clinician data says Mark J. Weisberg 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 J. Weisberg?
- (956) 389-1100, as listed in official Medicare / NPI Registry data.
- What is Mark J. Weisberg's NPI number?
- 1568690279. 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 J. Weisberg works
Medicare's Facility Affiliation Data lists Mark J. Weisberg at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Valley Baptist Medical Center- BrownsvilleBrownsville, TX · Acute Care Hospital · CCN 450028
- VHS Harlingen Hospital Company LLCHarlingen, TX · Acute Care Hospital · CCN 450033
Practice locations
Addresses where Mark J. Weisberg is enrolled with Medicare (CMS data updated 2026-10-02).
- 1040 W Jefferson StBrownsville, TX 78520 (956) 389‑1100
- 1821 S Sesame Sq, 14 Rgv House CallsHarlingen, TX 78550 (956) 825‑1235
- 2101 Pease StHarlingen, TX 78550 (956) 389‑6565
Group practices
Medicare enrollment lists Mark J. Weisberg as a member of these groups (CMS data updated 2026-10-02).
- BHS Physicians Network, Inc706 clinicians in the group
- Femi Layiwola MD PA8 clinicians in the group
- Wandw Medical Consulting PLLC5 clinicians in the group
Specialties
- Internal Medicineprimary
- Family Practicealso
- Hospitalistalso
Other internal medicine doctors in Brownsville
Clinicians with the same Medicare primary specialty in Brownsville, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568690279 |
| 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