Leanna Mah, M.D.
NPI 1649682592 · Urology Physician · Clackamas, OR
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leanna Mah, M.D. is a Urology Physician provider in Clackamas, OR (NPI 1649682592).
Provider details
- NPI number
- 1649682592
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- MD200076 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
12 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 209 | 91 |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 100 | 57 |
| Finasteride | 99 | 38 |
| Tadalafil | 77 | 17 |
| Cephalexin | 59 | 49 |
| Estradiol | 37 | 25 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$128 across 1 record (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)
- 2315 Stockton Blvd # Op512Sacramento, CA 95817-2201Phone: (503) 752-2520
Registry dates
- Enumerated
- 2014-05-27
- Last updated
- 2025-07-30
- Certified
- 2025-07-30
Frequently asked questions
- What is Leanna Mah's NPI number?
- Leanna Mah's National Provider Identifier (NPI) is 1649682592, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leanna Mah's specialty?
- Leanna Mah is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Leanna Mah located?
- Leanna Mah's practice location on file with NPPES is 9900 Se Sunnyside Rd, Clackamas, OR 97015-9777.
- What is Leanna Mah's phone number?
- The practice phone number listed in the NPPES registry for Leanna Mah is (800) 813-2000.
- Does Leanna Mah accept Medicare?
- Leanna Mah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leanna Mah's NPI active?
- Yes — Leanna Mah's NPI (1649682592) is active in the NPPES registry as of the last update on 2025-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.