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Medical Oncology

Guillaume Pegna, MD

Works at hospitals in Portland, OR · Salem, OR · Oregon

Summary

Guillaume Pegna, MD (Medical Oncology) is listed by Medicare at 2 hospitals in Portland, OR and Salem, OR. NPI 1841670361. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Guillaume Pegna, 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

Medical OncologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
11Years since medical school (graduated 2015)
MaleGender (as listed)
University Professional ServicesGroup practice

Quick answers

Which hospitals does Guillaume Pegna work at?
Medicare's official clinician data lists Guillaume Pegna at 2 hospitals: OHSU Hospital and Clinics and Salem Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Guillaume Pegna see patients?
Medicare's clinician data lists 1 practice location in Portland, OR. Call before your visit to confirm the address.
What is Guillaume Pegna's specialty?
Medicare lists Medical Oncology as the primary specialty.
Does Guillaume Pegna accept Medicare assignment?
Yes. Medicare's clinician data says Guillaume Pegna 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 Guillaume Pegna offer telehealth?
Medicare's clinician data says Guillaume Pegna offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Guillaume Pegna?
(503) 494-8311, as listed in official Medicare / NPI Registry data.
What is Guillaume Pegna's NPI number?
1841670361. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Guillaume Pegna works

Medicare's Facility Affiliation Data lists Guillaume Pegna at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Guillaume Pegna is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • University Professional Services1,724 clinicians in the group

Specialties

Find other Medical Oncology doctors in Oregon →

Other oncologists in Portland

Clinicians with the same Medicare primary specialty in Portland, OR — not a recommendation.

All oncologists in Portland →

Clinician information

CredentialMD
Graduation year2015
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1841670361
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians