Donald Lum, MD
NPI 1376535724 · Gastroenterology Physician · Portland, OR
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Lum, MD is a Gastroenterology Physician provider in Portland, OR (NPI 1376535724).
Provider details
- NPI number
- 1376535724
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD60965635 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
306 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 85 | $41 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $131 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 41 | $157 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 34 | $248 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 33 | $93 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 109 | 29 |
| Famotidine | 77 | 21 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 57 | 56 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 44 | 42 |
| Budesonidebrand: Budesonide Dr | 32 | 15 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 32 | 31 |
| Mesalamine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$109,419 across 109 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 9300 Se 91st Ave Ste 300Clackamas, OR 97086-3762Phone: (503) 963-2707Fax: (503) 963-2802
Registry dates
- Enumerated
- 2005-08-19
- Last updated
- 2024-11-04
- Certified
- 2024-11-04
Frequently asked questions
- What is Donald Lum's NPI number?
- Donald Lum's National Provider Identifier (NPI) is 1376535724, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Lum's specialty?
- Donald Lum is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Lum located?
- Donald Lum's practice location on file with NPPES is 1111 Ne 99th Ave, Portland, OR 97220-9428.
- What is Donald Lum's phone number?
- The practice phone number listed in the NPPES registry for Donald Lum is (503) 963-2707.
- Does Donald Lum accept Medicare?
- Donald Lum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Lum's NPI active?
- Yes — Donald Lum's NPI (1376535724) is active in the NPPES registry as of the last update on 2024-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.