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Internal Medicine

Katherine M. Dahlke, MD

Sees patients in Portland, OR · Oregon

Summary

Dr. Katherine M. Dahlke, MD is an internal medicine doctor at 2121 NE Halsey St, Portland, OR 97232. Phone: (503) 234-7299. Accepts Medicare assignment. In 2024, Katherine M. Dahlke had 14 Original Medicare patients and 336 services. NPI 1598830812. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 2121 NE Halsey St, Portland, OR 97232 · Directions
  • Phone: (503) 234‑7299
  • Medicare: Accepts Medicare assignment
  • Medical school: Wayne State University School Of Medicine · graduated 1983 (43 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Katherine M. Dahlke, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Katherine M. Dahlke accept Medicare assignment?
Yes. Medicare's clinician data says Katherine M. Dahlke accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Katherine M. Dahlke see?
In 2024, CMS data shows 14 Original Medicare patients and 336 services for Katherine M. Dahlke. This counts Original Medicare only and measures volume, not quality.
What is Katherine M. Dahlke's NPI number?
1598830812. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Katherine M. Dahlke, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients14
Services billed to Medicare336
Different services or procedures5
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)164 services
  2. Osteopathic manipulative treatment, 5-6 body regions (98927)138 services

Practice locations

Addresses where Katherine M. Dahlke is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in Oregon →

Other internal medicine doctors in Portland

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

All internal medicine doctors in Portland →

Clinician information

CredentialMD
Medical schoolWayne State University School Of Medicine
Graduation year1983 (43 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598830812
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 October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  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