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Neurosurgery

Mark R. Kraemer, MD

Works at hospitals in Port Townsend, WA · Port Angeles, WA · Edmonds, WA … · Washington

Summary

Dr. Mark R. Kraemer, MD is a neurosurgeon at 500 17th Ave, Seattle, WA 98122. Phone: (206) 320-2000. Accepts Medicare assignment. In 2024, Mark R. Kraemer had 12 Original Medicare patients and 66 services. NPI 1770019234. 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 Mark R. Kraemer, 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 Mark R. Kraemer accept Medicare assignment?
Yes. Medicare's clinician data says Mark R. Kraemer 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 Mark R. Kraemer see?
In 2024, CMS data shows 12 Original Medicare patients and 66 services for Mark R. Kraemer. This counts Original Medicare only and measures volume, not quality.
What is Mark R. Kraemer's NPI number?
1770019234. 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 Mark R. Kraemer, 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 patients12
Services billed to Medicare66
Different services or procedures31
Participating Medicare providerYes
Average age of these patients75

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 cholesterol75%

Hospitals where Mark R. Kraemer works

Medicare's Facility Affiliation Data lists Mark R. Kraemer 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.

  • Jefferson HealthcarePort Townsend, WA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 501323
  • Olympic Medical CenterPort Angeles, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500072
  • Swedish Edmonds HospitalEdmonds, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500026
  • Swedish Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500027
  • Swedish Medical Center / Cherry HillSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500025

Practice locations

Addresses where Mark R. Kraemer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mark R. Kraemer as a member of this group (CMS data updated October 2, 2026).

  • Swedish Health Services1,037 clinicians in the group

Specialties

Find other Neurosurgery doctors in Washington →

Other neurosurgeons in Seattle

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

All neurosurgeons in Seattle →

Other clinicians in Swedish Health Services

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

Clinician information

CredentialMD
Medical schoolUniversity Of Wisconsin School Of Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1770019234
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