Mark Lassoff, MD, MBA, MPH
NPI 1760633549 · Urology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1760633549
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MBA, MPH
- Sex
- Male
- Sole proprietor
- Yes
- License
- 93400 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Finasteride | 372 | 115 |
| Tamsulosin Hcl | 356 | 123 |
| Terazosin Hcl | 213 | 69 |
| Potassium Citratebrand: Potassium Citrate Er | 87 | 32 |
| Trospium Chloride | 66 | 31 |
| Allopurinol | 33 | — |
| Indapamide | 32 | — |
| Cephalexin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-10-09
- Last updated
- 2021-12-01
- Certified
- 2021-12-01
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.