Quick answers
- Where does Marlene A. Ortega see patients?
- Medicare's clinician data lists 2 practice locations, including Houston, TX and Manhattan, IL. Call before your visit to confirm the address.
- What is Marlene A. Ortega's specialty?
- Medicare lists Registered Dietitian or Nutrition Professional as the primary specialty.
- Does Marlene A. Ortega accept Medicare assignment?
- Medicare's clinician data says Marlene A. Ortega may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Marlene A. Ortega's NPI number?
- 1336930700. 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 Marlene A. Ortega is enrolled with Medicare (CMS data updated 2026-10-02).
- 13800 N Fwy, Suite 200Houston, TX 77090
- PO Box, Suite 84Manhattan, IL 60442
Specialties
Find other clinicians: Registered Dietitian or Nutrition Professional, Texas →
Other dietitians in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Graduation year | 2017 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1336930700 |
| 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