Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Donald Foon Lum, MD

Individual provider Gastroenterology Physician · NPI 1376535724

Donald Foon Lum, MD practises Gastroenterology in Portland, Oregon. Graduated from University of California, Davis School of Medicine in 1988, 38 years ago. Practices with The Oregon Clinic, PC, a 352-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California, Oregon and Washington.

Years since qualifying
38
Trained at
University of California, Davis School of Medicine
Licensed in
CA, OR, WA
In the registry since
2005
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1111 NE 99th Ave Ste 301
Portland, OR 97220-9428
Phone: (503) 963-2707
Fax: (503) 963-2802
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 9300 Se 91st Ave Ste 300, Clackamas, OR 97086-3762 — (503) 963-2707

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MD16022 (OR)
Gastroenterology Physician Taxonomy 207RG0100X · Licence MD60965635 (WA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence G74500 (CA)

Record details

NPI number1376535724
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 19, 2005
Last updated in NPPESNovember 4, 2024
Certification dateNovember 4, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, DAVIS SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice The Oregon Clinic, Pc — 352 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 36 times · 57th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 25 times · 53rd percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients197
Services billed 3,077 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $73,597 21 payments
Travel and Lodging $10,447 33 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $2,668 39 payments · a meal or drink at a meeting or visit, not a fee
Education $26 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at The Oregon Clinic, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 352 clinicians in the practice; 12 are shown here.

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