Quick answers
- Where does Mara J. Posner see patients?
- Medicare's clinician data lists 1 practice location in Las Vegas, NV. Call before your visit to confirm the address.
- What is Mara J. Posner's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Mara J. Posner accept Medicare assignment?
- Yes. Medicare's clinician data says Mara J. Posner 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 Mara J. Posner offer telehealth?
- Medicare's clinician data says Mara J. Posner offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mara J. Posner?
- (702) 579-3253, as listed in official Medicare / NPI Registry data.
- What is Mara J. Posner's NPI number?
- 1477765634. 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 Mara J. Posner is enrolled with Medicare (CMS data updated 2026-10-02).
- 4750 W Oakey BlvdLas Vegas, NV 89102 (702) 579‑3253
Group practices
Medicare enrollment lists Mara J. Posner as a member of this group (CMS data updated 2026-10-02).
- Optum Medical Group II Rhodes P C296 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Las Vegas
Clinicians with the same Medicare primary specialty in Las Vegas, NV — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2001 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1477765634 |
| 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