Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Español Near me My list Help
US Patient GuideUSA
Surprise me
Registered Dietitian or Nutrition Professional

Margaret N. Oreilly

Sees patients in Houston, TX · Texas

Summary

Margaret N. Oreilly (Registered Dietitian or Nutrition Professional) is enrolled with Medicare at 1 practice location in Houston, TX. NPI 1164116273. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(281) 251‑5234 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Margaret N. Oreilly, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

1Practice location
Registered Dietitian or Nutrition ProfessionalPrimary specialty
YesAccepts Medicare assignment
3Years since medical school (graduated 2023)
FemaleGender (as listed)
Damaris Vega MD PLLCGroup practice

Quick answers

Where does Margaret N. Oreilly see patients?
Medicare's clinician data lists 1 practice location in Houston, TX. Call before your visit to confirm the address.
What is Margaret N. Oreilly's specialty?
Medicare lists Registered Dietitian or Nutrition Professional as the primary specialty.
Does Margaret N. Oreilly accept Medicare assignment?
Yes. Medicare's clinician data says Margaret N. Oreilly 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 Margaret N. Oreilly?
(281) 251-5234, as listed in official Medicare / NPI Registry data.
What is Margaret N. Oreilly's NPI number?
1164116273. 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 Margaret N. Oreilly is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Margaret N. Oreilly as a member of this group (CMS data updated 2026-10-02).

  • Damaris Vega MD PLLC9 clinicians in the group

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.

All dietitians in Houston →

Clinician information

Graduation year2023
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1164116273
CorrectionsReport 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

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians