Ronald Jay Lew, MD
Gastroenterology Physician · Tualatin, OR
Ronald Jay Lew, MD is a gastroenterology physician with a practice address in Tualatin, Oregon, and NPI 1265428619, issued on Sep 21, 2005. Check the license (Oregon MD23520, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ronald Jay Lew
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD23520 OR
Self-reported in NPPES; status is on the state search - Practice location
- 19250 SW 90TH Ave, Tualatin, OR 97062
- Phone
- (503) 692-3750
- Enumerated
- Sep 21, 2005
- Record last updated
- Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (503) 691-2324
- Medicaid IDs
- 1265428619 WA
286964 OR - Medicare enrollment
- Enrolled (PECOS I20100820000465); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1995
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 281 in Oregon → Look up another NPI →
Also registered at 19250 SW 90TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle Beilstein, MDGastroenterology Physician1518954668
- Anantnoor Brar, MDGastroenterology Physician1376004101
- Mark Cahill, MDGastroenterology Physician1598957888
- Stephen Chen, M.D.Gastroenterology Physician1831221837
- Ryan Childers, M.D.Gastroenterology Physician1568627594
- Jeffrey Douglass, MDGastroenterology Physician1487611984
Verify Ronald Jay Lew in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD23520Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average gastroenterology physician in 2024
453 Medicare Part D claims for 185 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole122 claims
- Pantoprazole Sodium62 claims
- Famotidine36 claims
- Sod Sulf-Potass Sulf-Mag Sulf31 claims
- Lansoprazole20 claims
- Gavilyte-G15 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: $31.95
1 payment: food and beverage; the largest payer was Janssen Biotech, 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, PCTualatin, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald Jay Lew among 281 gastroenterology physician records in Oregon
Ronald Jay Lew, 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
- Graduated1995 · median 2003 among the 201 with a school on file
- Record last updated2021 · 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).
18 gastroenterology physician records list a practice address in Tualatin
They are 18 of the 863 NPPES records with a practice address in Tualatin, and 281 gastroenterology physician records in Oregon.
All 281 in Oregon → Every provider in Tualatin → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Michelle Beilstein, MDTualatin, OR 970621518954668
- Mark Cahill, MDTualatin, OR 970621598957888
- Stephen Chen, M.D.Tualatin, OR 970621831221837
- Ryan Childers, M.D.Tualatin, OR 970621568627594
- Jeffrey Douglass, MDTualatin, OR 970621487611984
- Jeffrey Duman, MDTualatin, OR 970621174679773
- Karl Kim, MDTualatin, OR 970621902958671
- Sarah LeeTualatin, OR 970621972861599
Common questions
What is Ronald Jay Lew, MD's NPI number?
Ronald Jay Lew, MD's National Provider Identifier (NPI) is 1265428619, issued on Sep 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Jay Lew, MD located?
The NPPES record lists a practice address at 19250 SW 90TH Ave, Tualatin, OR, 97062. Phone: (503) 692-3750. Providers update this record themselves, so call before visiting.
How can I verify Ronald Jay Lew, MD's license?
NPPES lists Oregon license number MD23520, 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 Ronald Jay Lew, MD prescribe under Medicare Part D?
In 2024, Ronald Jay Lew, MD had 453 Medicare Part D claims for 185 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.