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Hospitalist

Carolyn S. Keller, MD

Works at hospitals in Seattle, WA · Washington

Summary

Dr. Carolyn S. Keller, MD is a hospitalist at 1959 NE Pacific St, Seattle, WA 98195. Phone: (206) 598-4333. Accepts Medicare assignment. In 2024, Carolyn S. Keller had 31 Original Medicare patients and 84 services. NPI 1427323583. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Carolyn S. Keller, 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 Carolyn S. Keller accept Medicare assignment?
Yes. Medicare's clinician data says Carolyn S. Keller 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 Carolyn S. Keller see?
In 2024, CMS data shows 31 Original Medicare patients and 84 services for Carolyn S. Keller. This counts Original Medicare only and measures volume, not quality.
What is Carolyn S. Keller's NPI number?
1427323583. 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 Carolyn S. Keller, 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 patients31
Services billed to Medicare84
Different services or procedures10
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)42 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)20 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).

  • High blood pressure75%
  • High cholesterol55%
  • Heart failure48%
  • Atrial fibrillation48%
  • Depression45%
  • Chronic kidney disease45%

Hospitals where Carolyn S. Keller works

Medicare's Facility Affiliation Data lists Carolyn S. Keller 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 Carolyn S. Keller is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Carolyn S. Keller 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 Hospitalist doctors in Washington →

Other hospitalists in Seattle

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

All hospitalists 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
Graduation year2012 (14 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1427323583
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. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians