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

Gastroenterology

Brent Y. Lee, MD

Works at hospitals in Astoria, OR · Seaside, OR · Portland, OR · Oregon

Summary

Dr. Brent Y. Lee, MD is a gastroenterologist at 9701 SW Barnes, Suite 300, Portland, OR 97225. Phone: (503) 297-8081. Accepts Medicare assignment. In 2024, Brent Y. Lee had 217 Original Medicare patients and 1,701 services. NPI 1689888505. 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 Brent Y. Lee, 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 Brent Y. Lee accept Medicare assignment?
Yes. Medicare's clinician data says Brent Y. Lee 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 Brent Y. Lee see?
In 2024, CMS data shows 217 Original Medicare patients and 1,701 services for Brent Y. Lee. This counts Original Medicare only and measures volume, not quality.
What is Brent Y. Lee's NPI number?
1689888505. 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 Brent Y. Lee, 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 patients217
Services billed to Medicare1,701
Different services or procedures32
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)129 services
  2. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)72 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)44 services
  4. Biopsy of large bowel using a flexible endoscope (45380)26 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)24 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 cholesterol69%
  • High blood pressure63%
  • Arthritis40%
  • Diabetes20%
  • Depression20%
  • Atrial fibrillation19%

Hospitals where Brent Y. Lee works

Medicare's Facility Affiliation Data lists Brent Y. Lee 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 Brent Y. Lee is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Brent Y. Lee as a member of this group (CMS data updated October 2, 2026).

  • The Oregon Clinic, PC362 clinicians in the group

Specialties

Find other Gastroenterology doctors in Oregon →

Other gastroenterologists in Portland

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

All gastroenterologists in Portland →

Other clinicians in The Oregon Clinic, PC

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

Clinician information

CredentialMD
Medical schoolLoma Linda University School Of Medicine
Graduation year2006 (20 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1689888505
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