Doctor profile · Federal record
Dr. Ronald Lew, MD
Gastroenterology Physician (CMS: Gastroenterology) · Tualatin, OR
- NPI 1265428619
- Accepts Medicare
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
19250 Sw 90Th Ave
Tualatin, OR 970627585
(503) 692-3750
fax (503) 691-2324 - Mailing address
-
847 Ne 19Th Ave, Suite 300
Portland, OR 972322684
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- December 1, 2021
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Oregon #MD23520
- Medicaid (2)
- WA #1265428619 · OR #286964
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1265428619. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
313
Distinct HCPCS
8
Medicare allowed
$31,754
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 119 | 53 | $37 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 54 | 54 | $137 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 42 | 41 | $62 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 28 | 28 | $250 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 22 | 22 | $130 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 17 | 17 | $88 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 16 | 16 | $169 | |
43259 |
Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 15 | 15 | $217 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 38. This provider delivers 8.2× the peer median.Open Payments
Industry payments received
All-time total
$32
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Biotech, Inc. | 1 | $31.95 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
341
Patients
134
Total drug cost
$16,570
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 159 | 56 | $2,127 |
| Pantoprazole Sodium | Generic | 40 | 14 | $794 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 36 | 36 | $695 |
| Lansoprazole | Generic | 24 | 0 | $714 |
| Famotidine | Generic | 23 | 0 | $154 |
| Mesalamine | Generic | 19 | 0 | $11,230 |
| Ondansetron Odt (Ondansetron) | Brand | 17 | 17 | $110 |
| Azathioprine | Generic | 12 | 0 | $696 |
| Ciprofloxacin Hcl | Generic | 11 | 11 | $50 |
Frequently asked questions
What is Dr. Ronald Lew's medical specialty?
Dr. Ronald Lew practices Gastroenterology Physician in Tualatin, OR.
Where does Dr. Ronald Lew practice?
Dr. Ronald Lew practices at 19250 Sw 90Th Ave, Tualatin, OR 970627585. Office phone: 5036923750.
What is Dr. Ronald Lew's NPI?
Dr. Ronald Lew's National Provider Identifier (NPI) is 1265428619, issued by NPPES.
Does Dr. Ronald Lew accept Medicare assignment?
Yes. Dr. Ronald Lew accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ronald Lew commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.