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Physician Assistant

John J. Kochanski Iv, PA

Works at hospitals in Astoria, OR · Ilwaco, WA · Seaside, OR … · Oregon, Washington

Summary

John J. Kochanski Iv, PA is a physician assistant at 113 S Hwy 101, Warrenton, OR 97146. Phone: (503) 861-6500. Accepts Medicare assignment. NPI 1578270575. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about John J. Kochanski Iv, 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 John J. Kochanski Iv accept Medicare assignment?
Yes. Medicare's clinician data says John J. Kochanski Iv 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.
What is John J. Kochanski Iv's NPI number?
1578270575. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John J. Kochanski Iv works

Medicare's Facility Affiliation Data lists John J. Kochanski Iv at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where John J. Kochanski Iv is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists John J. Kochanski Iv as a member of this group (CMS data updated October 2, 2026).

  • Providence Health and Services Oregon97 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Oregon →

Other physician assistants in Warrenton

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

All physician assistants in Warrenton →

Other clinicians in Providence Health and Services Oregon

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialPA
Graduation year2022
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1578270575
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians