Leanna Wendy Mah, M.D.
Urology Physician · Clackamas, OR
Leanna Wendy Mah, M.D. is a urology physician with a practice address in Clackamas, Oregon, and NPI 1649682592, issued on May 27, 2014. Check the license (Oregon MD200076, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Leanna Wendy Mah
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License number
- MD200076 OR
Self-reported in NPPES; status is on the state search - Practice location
- 9900 SE Sunnyside RD, Clackamas, OR 97015
- Phone
- (800) 813-2000
- Enumerated
- May 27, 2014
- Record last updated
- Jul 30, 2025
- Medicare enrollment
- Enrolled (PECOS I20201007002219); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest urology physician records → All 188 in Oregon → Look up another NPI →
Also registered at 9900 SE Sunnyside RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Douglas Ackerman, M.D.Urology Physician1174636344
- Kamran Aghaie, MDGastroenterology Physician1104056936
- Joshua Armagost, RNRegistered Nurse First Assistant1558513135
- Jeffrey Barton, M.D.Colon & Rectal Surgery Physician1295988350
- Tracy Barton, RPHPharmacist1265804421
- Natalie Baxter, PA-CMedical Physician Assistant1265675599
Verify Leanna Wendy Mah in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD200076Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average urology physician in 2024
827 Medicare Part D claims for 291 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 42 claims were for opioids.
Most prescribed
- Tamsulosin Hcl209 claims
- Oxybutynin Chloride Er100 claims
- Finasteride99 claims
- Tadalafil77 claims
- Cephalexin59 claims
- Estradiol37 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: $128.05
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 9,340 providers of this specialty with any payment received $3,800.04 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
- Kaiser Foundation Health Plan OF The NorthwestClackamas, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leanna Wendy Mah among 188 urology physician records in Oregon
Leanna Wendy Mah, M.D. is one of 188 urology 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 2014, is newer than 86% of them.
- NPI issued2014 · 86% of these records are older, 13% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2014 · median 2004 among the 134 with a school on file
- Record last updated2025 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Oregon
There are 188 urology physician records in Oregon.
All 188 in Oregon → Every provider in Clackamas → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Douglas Ackerman, M.D.Clackamas, OR 970151174636344
- Paramjit Chandhoke, M.D.Clackamas, OR 970151568578029
- Matthew Forsyth, MDClackamas, OR 970151598778060
- Kyle Gillis, MDClackamas, OR 970151932594504
- Jeffrey Johnson, M.D.Clackamas, OR 970151659487692
- Stephen Lieberman, M.D.Clackamas, OR 970151841306925
- Stephen ProctorClackamas, OR 970151487009163
- Geoffrey Rosen, MDClackamas, OR 970151679066823
Common questions
What is Leanna Wendy Mah, M.D.'s NPI number?
Leanna Wendy Mah, M.D.'s National Provider Identifier (NPI) is 1649682592, issued on May 27, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Leanna Wendy Mah, M.D. located?
The NPPES record lists a practice address at 9900 SE Sunnyside RD, Clackamas, OR, 97015. Phone: (800) 813-2000. Providers update this record themselves, so call before visiting.
How can I verify Leanna Wendy Mah, M.D.'s license?
NPPES lists Oregon license number MD200076, 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 Leanna Wendy Mah, M.D. prescribe under Medicare Part D?
In 2024, Leanna Wendy Mah, M.D. had 827 Medicare Part D claims for 291 beneficiaries; the average among urology physician prescribers was 1,340. 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.