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

Obstetrics/Gynecology

Catherine S. John, MD

Sees patients in Clackamas, OR · Vancouver, WA · Oregon, Washington

Summary

Catherine S. John, MD (Obstetrics/Gynecology) is enrolled with Medicare at 2 practice locations in Clackamas, OR and Vancouver, WA. NPI 1316459340. 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 Catherine S. John, 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

Obstetrics/GynecologyPrimary specialty
YesAccepts Medicare assignment
9Years since medical school (graduated 2017)
FemaleGender (as listed)
Kaiser Foundation Health Plan of the NorthwestGroup practice

Quick answers

Where does Catherine S. John see patients?
Medicare's clinician data lists 2 practice locations, including Clackamas, OR and Vancouver, WA. Call before your visit to confirm the address.
What is Catherine S. John's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Catherine S. John accept Medicare assignment?
Yes. Medicare's clinician data says Catherine S. John 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 Catherine S. John?
(800) 813-2000, as listed in official Medicare / NPI Registry data.
What is Catherine S. John's NPI number?
1316459340. 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 Catherine S. John is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Catherine S. John as a member of this group (CMS data updated 2026-10-02).

  • Kaiser Foundation Health Plan of the Northwest1,807 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Oregon →

Other OB-GYNs in Clackamas

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

All OB-GYNs in Clackamas →

Clinician information

CredentialMD
Graduation year2017
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1316459340
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