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Medical Oncology

Robert G. Mennel, MD

Sees patients in Jacksonville, TX · Plano, TX · Dallas, TX · Texas

Summary

Robert G. Mennel, MD (Medical Oncology) is enrolled with Medicare at 4 practice locations in Jacksonville, TX, Plano, TX and Dallas, TX. NPI 1265475677. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(903) 586‑2456 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Robert G. Mennel, 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

4Practice locations
Medical OncologyPrimary specialty
YesAccepts Medicare assignment
56Years since medical school (graduated 1970)
Perelman School Of Med At The University Of PennsylvaniaMedical school
MaleGender (as listed)
Texas Oncology PAGroup practice

Quick answers

Where does Robert G. Mennel see patients?
Medicare's clinician data lists 4 practice locations, including Jacksonville, TX, Plano, TX and Dallas, TX. Call before your visit to confirm the address.
What is Robert G. Mennel's specialty?
Medicare lists Medical Oncology as the primary specialty, and also Internal Medicine.
Does Robert G. Mennel accept Medicare assignment?
Yes. Medicare's clinician data says Robert G. Mennel 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 Robert G. Mennel?
(903) 586-2456, as listed in official Medicare / NPI Registry data.
What is Robert G. Mennel's NPI number?
1265475677. 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 Robert G. Mennel is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Robert G. Mennel as a member of this group (CMS data updated 2026-10-02).

  • Texas Oncology PA1,014 clinicians in the group

Specialties

Find other Medical Oncology doctors in Texas →

Other oncologists in Texas

Clinicians with the same Medicare primary specialty in Texas — not a recommendation.

All oncologists in Texas →

Clinician information

CredentialMD
Medical schoolPerelman School Of Med At The University Of Pennsylvania
Graduation year1970
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1265475677
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