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Obstetrics/Gynecology

Krissy M. Yamamoto, MD

Works at hospitals in Renton, WA · Washington

Summary

Dr. Krissy M. Yamamoto, MD is an OB-GYN at 16850 SE 272nd St, Covington, WA 98042. Accepts Medicare assignment. NPI 1194916395. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 16850 SE 272nd St, Covington, WA 98042 · Directions
  • Medicare: Accepts Medicare assignment
  • Hospital: Valley Medical Center
  • Group practice: Valley Medical Group-Renton
  • Medical school: University Of Texas Medical School At Houston · graduated 2007 (19 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Krissy M. Yamamoto, 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 Krissy M. Yamamoto accept Medicare assignment?
Yes. Medicare's clinician data says Krissy M. Yamamoto 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 Krissy M. Yamamoto's NPI number?
1194916395. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Krissy M. Yamamoto works

Medicare's Facility Affiliation Data lists Krissy M. Yamamoto 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.

  • Valley Medical CenterRenton, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500088

Practice locations

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

  • 16850 SE 272nd StCovington, WA 98042

Group practices

Medicare enrollment lists Krissy M. Yamamoto as a member of this group (CMS data updated October 2, 2026).

  • Valley Medical Group-Renton411 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Washington →

Other OB-GYNs in Covington

Clinicians with the same Medicare primary specialty in Covington, WA — not a recommendation.

All OB-GYNs in Covington →

Other clinicians in Valley Medical Group-Renton

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

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical School At Houston
Graduation year2007 (19 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1194916395
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