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Internal Medicine

Shay M. Martinez, MD

Sees patients in Seattle, WA · Washington

Summary

Dr. Shay M. Martinez, MD is an internal medicine doctor at 325 9th Ave, Seattle, WA 98104. Phone: (206) 731-3000. Accepts Medicare assignment. In 2024, Shay M. Martinez had 24 Original Medicare patients and 78 services. NPI 1568571362. 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: 325 9th Ave, Seattle, WA 98104 · Directions
  • Phone: (206) 731‑3000
  • Medicare: Accepts Medicare assignment
  • Group practice: The Association of University Physicians
  • Medical school: University Of Rochester School Of Medicine And Dentistry · graduated 2005 (21 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Shay M. Martinez, 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 Shay M. Martinez accept Medicare assignment?
Yes. Medicare's clinician data says Shay M. Martinez 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 Shay M. Martinez see?
In 2024, CMS data shows 24 Original Medicare patients and 78 services for Shay M. Martinez. This counts Original Medicare only and measures volume, not quality.
What is Shay M. Martinez's NPI number?
1568571362. 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 Shay M. Martinez, 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 patients24
Services billed to Medicare78
Different services or procedures11
Participating Medicare providerYes
Average age of these patients55

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)25 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • Anxiety58%
  • High blood pressure46%

Practice locations

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

Group practices

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

  • The Association of University Physicians3,535 clinicians in the group

Specialties

Find other Internal Medicine doctors in Washington →

Other internal medicine doctors in Seattle

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

All internal medicine doctors in Seattle →

Other clinicians in The Association of University Physicians

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

Clinician information

CredentialMD
Medical schoolUniversity Of Rochester School Of Medicine And Dentistry
Graduation year2005 (21 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1568571362
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