Donald Foon Lum, MD
Gastroenterology Physician · Portland, OR
Donald Foon Lum, MD is a gastroenterology physician with a practice address in Portland, Oregon, and NPI 1376535724, issued on Aug 19, 2005. Check the license (Oregon MD16022, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Donald Foon Lum
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- MD16022 OR
G74500 CA
MD60965635 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1111 NE 99TH Ave, Portland, OR 97220
- Phone
- (503) 963-2707
- Enumerated
- Aug 19, 2005
- Record last updated
- Nov 4, 2024
- Fax
- (503) 963-2802
- Medicaid IDs
- 023908 OR
8424897 WA - Medicare enrollment
- Enrolled (PECOS I20050610000334); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 281 in Oregon → Look up another NPI →
Also registered at 1111 NE 99TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Albaugh, MDGastroenterology Physician1184626087
- Kent Benner, MDGastroenterology Physician1649272451
- Sidharth Bhardwaj, M.D.Gastroenterology Physician1831156025
- William Bowerfind, MDPulmonary Disease Physician1801898663
- Harry Bray, MDGastroenterology Physician1790787554
- Sumner Brooks, MPH, RD, CSSDRegistered Dietitian1477833390
Verify Donald Foon Lum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD16022Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average gastroenterology physician in 2024
684 Medicare Part D claims for 242 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Omeprazole109 claims
- Famotidine77 claims
- Gavilyte-G57 claims
- Sod Sulf-Potass Sulf-Mag Sulf44 claims
- Budesonide Dr32 claims
- Peg-3350 And Electrolytes32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $109,418.69
109 payments; by number, the most common kind was travel and lodging; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- The Oregon Clinic, PCPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Donald Foon Lum among 281 gastroenterology physician records in Oregon
Donald Foon Lum, MD is one of 281 gastroenterology physician records with a practice address in Oregon. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 80% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1988 · median 2003 among the 201 with a school on file
- Record last updated2024 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Oregon
There are 281 gastroenterology physician records in Oregon.
All 281 in Oregon → Every provider in Portland → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jeffrey Albaugh, MDPortland, OR 972201184626087
- Kent Benner, MDPortland, OR 972201649272451
- Harry Bray, MDPortland, OR 972201790787554
- Craig Fausel, MDPortland, OR 972201477555175
- Kenneth Flora, MDPortland, OR 972201730181439
- Betty Kim, MDPortland, OR 972201457343907
- Kirsten Kinsman, MDPortland, OR 972201598757049
- Phillip Kiyasu, MDPortland, OR 972201124010673
Common questions
What is Donald Foon Lum, MD's NPI number?
Donald Foon Lum, MD's National Provider Identifier (NPI) is 1376535724, issued on Aug 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Donald Foon Lum, MD located?
The NPPES record lists a practice address at 1111 NE 99TH Ave, Portland, OR, 97220. Phone: (503) 963-2707. Providers update this record themselves, so call before visiting.
How can I verify Donald Foon Lum, MD's license?
NPPES lists Oregon license number MD16022, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Donald Foon Lum, MD prescribe under Medicare Part D?
In 2024, Donald Foon Lum, MD had 684 Medicare Part D claims for 242 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.