Quick answers
- Does Thomas M. Lesinski accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas M. Lesinski accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Thomas M. Lesinski see?
- In 2024, CMS data shows 305 Original Medicare patients and 499 services for Thomas M. Lesinski. This counts Original Medicare only and measures volume, not quality.
- What is Thomas M. Lesinski's NPI number?
- 1083009427. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Thomas M. Lesinski, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 305 |
|---|---|
| Services billed to Medicare | 499 |
| Different services or procedures | 47 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)130 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)58 services
- Emergency department visit with moderate level of medical decision making (99284)43 services
- Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen (87635)42 services
- Detection test by nucleic acid for multiple types influenza virus (87502)25 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol63%
- High blood pressure53%
- Arthritis40%
- Anxiety24%
- Depression22%
- Diabetes19%
Practice locations
Addresses where Thomas M. Lesinski is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1310 El Camino Real, Suite I JSan Bruno, CA 94066 (650) 270‑2395
- 199 W Portal AveSan Francisco, CA 94127 (415) 821‑8798
- 2395 Lombard StSan Francisco, CA 94123 (415) 796‑2242
- 2895 Diamond StSan Francisco, CA 94131 (415) 964‑4866
- 325 Gellert BlvdDaly City, CA 94015 (650) 270‑2394
Group practices
Medicare enrollment lists Thomas M. Lesinski as a member of this group (CMS data updated October 2, 2026).
- UCSF Health Medical Foundation66 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in San Bruno
Clinicians with the same Medicare primary specialty in San Bruno, CA — not a recommendation.
Other clinicians in UCSF Health Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1083009427 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians