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Internal Medicine

Gregory Weidner, MD

Sees patients in Durham, NC · North Carolina

Summary

Gregory Weidner, MD (Internal Medicine) is enrolled with Medicare at 2 practice locations in Durham, NC. NPI 1245258284. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Gregory Weidner, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
35Years since medical school (graduated 1991)
University Of Rochester School Of Medicine And DentistryMedical school
MaleGender (as listed)
Duke University Affiliated Physicians, Inc.Group practice

Quick answers

Where does Gregory Weidner see patients?
Medicare's clinician data lists 2 practice locations, including Durham, NC. Call before your visit to confirm the address.
What is Gregory Weidner's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Gregory Weidner accept Medicare assignment?
Yes. Medicare's clinician data says Gregory Weidner 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 Gregory Weidner?
(919) 890-8868, as listed in official Medicare / NPI Registry data.
What is Gregory Weidner's NPI number?
1245258284. 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 Gregory Weidner is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Gregory Weidner as a member of this group (CMS data updated 2026-10-02).

  • Duke University Affiliated Physicians, Inc.458 clinicians in the group

Specialties

Find other Internal Medicine doctors in North Carolina →

Other internal medicine doctors in Durham

Clinicians with the same Medicare primary specialty in Durham, NC — not a recommendation.

All internal medicine doctors in Durham →

Clinician information

CredentialMD
Medical schoolUniversity Of Rochester School Of Medicine And Dentistry
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1245258284
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