LEANNA WENDY MAH M.D.
NPI 1649682592
Urology in Clackamas, OR
About Leanna Wendy Mah M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LEANNA WENDY MAH M.D. (NPI 1649682592) is an individual urology provider in Clackamas, Oregon, licensed in Oregon (MD200076) and active in the NPI registry since May 2014. She is enrolled in Medicare PECOS, is affiliated with Kaiser Sunnyside Medical Center, and maintains a secondary practice location in Sacramento.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Leanna Wendy Mah M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Leanna Mah reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Clackamas, OR 97015
- Reassigned Medicare billing, Oregon and Washington enrollments
- Also billed through NPI 1871848457 (Washington)
- 3,207 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Kaiser Sunnyside Medical Center
Acute Care Hospitals · Clackamas, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97015 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CLACKAMAS, OR 97015
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Leanna Mah's NPI number?
The NPI number for Leanna Mah is 1649682592. It was assigned to this individual provider in the NPPES registry on May 27, 2014.
Where is Leanna Mah located?
Leanna Mah practices at 9900 SE Sunnyside Rd, Clackamas, OR 97015. The listed phone number is (800) 813-2000.
What is Leanna Mah's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is Leanna Mah enrolled in Medicare?
Yes. Leanna Mah is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Leanna Mah's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leanna Mah reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Northwest (Clackamas, OR). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Leanna Mah's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Leanna Mah accept?
Health plans from Kaiser Permanente list Leanna Mah as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Leanna Mah affiliated with any hospitals?
According to CMS data, Leanna Mah is affiliated with Kaiser Sunnyside Medical Center.
When was this NPI record last updated?
The NPPES record for Leanna Mah was last updated on July 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Leanna Wendy Mah, M.D. · NPI 1649682592
Urology physician in Clackamas, Oregon. Individual provider, active in the CMS NPPES registry since May 27, 2014.
## Identity
- **NPI:** 1649682592 (Entity type: Individual)
- **Enumerated:** May 27, 2014
- **Primary specialty:** Urology · taxonomy 208800000X
- **State license:** MD200076 (Oregon)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 9900 SE SUNNYSIDE RD, Clackamas, OR 97015-9777
- **Phone:** (800) 813-2000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Kaiser Foundation Health Plan Of The Northwest (NPI 1174851505, Clackamas, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Oregon Health Sciences University School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** July 30, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1649682592) · Data from the CMS NPPES public registry.