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

Gastroenterology

David M. Grunkemeier, MD

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

Summary

David M. Grunkemeier, MD (Gastroenterology) is listed by Medicare at 3 hospitals in Tillamook, OR and Portland, OR. NPI 1972542090. 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 David M. Grunkemeier, 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

GastroenterologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
26Years since medical school (graduated 2000)
Un Of California, Irvine, College Of MedicineMedical school
MaleGender (as listed)
The Oregon Clinic, PCGroup practice

Quick answers

Which hospitals does David M. Grunkemeier work at?
Medicare's official clinician data lists David M. Grunkemeier at 3 hospitals: Adventist Health Tillamook, Providence Portland Medical Center and Providence St Vincent Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does David M. Grunkemeier see patients?
Medicare's clinician data lists 2 practice locations, including Hillsboro, OR and Portland, OR. Call before your visit to confirm the address.
What is David M. Grunkemeier's specialty?
Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
Does David M. Grunkemeier accept Medicare assignment?
Yes. Medicare's clinician data says David M. Grunkemeier 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 David M. Grunkemeier offer telehealth?
Medicare's clinician data says David M. Grunkemeier offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for David M. Grunkemeier?
(503) 216-9715, as listed in official Medicare / NPI Registry data.
What is David M. Grunkemeier's NPI number?
1972542090. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where David M. Grunkemeier works

Medicare's Facility Affiliation Data lists David M. Grunkemeier 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 David M. Grunkemeier is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists David M. Grunkemeier as a member of this group (CMS data updated 2026-10-02).

  • The Oregon Clinic, PC362 clinicians in the group

Specialties

Find other Gastroenterology doctors in Oregon →

Other gastroenterologists in Hillsboro

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

All gastroenterologists in Hillsboro →

Clinician information

CredentialMD
Medical schoolUn Of California, Irvine, College Of Medicine
Graduation year2000
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1972542090
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