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

General Surgery

Catherine A. Boulay, MD

Works at hospitals in Dallas, OR · Salem, OR · Oregon

Summary

Dr. Catherine A. Boulay, MD is a general surgeon at 665 Winter St SE, Salem, OR 97301. Phone: (503) 561-5200. Accepts Medicare assignment. In 2024, Catherine A. Boulay had 86 Original Medicare patients and 260 services. NPI 1720029556. 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.

  • Specialty: General surgeon (Medicare lists General Surgery)
  • Address: 665 Winter St SE, Salem, OR 97301 · Directions (1 more location)
  • Phone: (503) 561‑5200
  • Medicare: Accepts Medicare assignment
  • Hospitals: Salem Health West Valley, Salem Hospital
  • Group practice: Salem Health
  • Medical school: Columbia University College Of Physicians And Surgeons · graduated 1999 (27 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Catherine A. Boulay, 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 Catherine A. Boulay accept Medicare assignment?
Yes. Medicare's clinician data says Catherine A. Boulay 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 Catherine A. Boulay see?
In 2024, CMS data shows 86 Original Medicare patients and 260 services for Catherine A. Boulay. This counts Original Medicare only and measures volume, not quality.
What is Catherine A. Boulay's NPI number?
1720029556. 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 Catherine A. Boulay, 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 patients86
Services billed to Medicare260
Different services or procedures48
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)35 services
  2. Insertion of needle into vein for collection of blood sample (36415)26 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)25 services
  4. Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)22 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)22 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 pressure71%
  • High cholesterol67%
  • Arthritis41%
  • Diabetes36%
  • Ischemic heart disease26%
  • Depression22%

Hospitals where Catherine A. Boulay works

Medicare's Facility Affiliation Data lists Catherine A. Boulay 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.

  • Salem Health West ValleyDallas, OR · Critical Access Hospital · Emergency services: listed by Medicare · CCN 381308
  • Salem HospitalSalem, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380051

Practice locations

Addresses where Catherine A. Boulay is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Catherine A. Boulay as a member of this group (CMS data updated October 2, 2026).

  • Salem Health454 clinicians in the group

Specialties

Find other General Surgery doctors in Oregon →

Other general surgeons in Salem

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

All general surgeons in Salem →

Other clinicians in Salem Health

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

Clinician information

CredentialMD
Medical schoolColumbia University College Of Physicians And Surgeons
Graduation year1999 (27 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1720029556
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