Quick answers
- Does Joseph S. Lopresti accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph S. Lopresti 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 Joseph S. Lopresti see?
- In 2024, CMS data shows 107 Original Medicare patients and 279 services for Joseph S. Lopresti. This counts Original Medicare only and measures volume, not quality.
- What is Joseph S. Lopresti's NPI number?
- 1881697951. 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 Joseph S. Lopresti, 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 | 107 |
|---|---|
| Services billed to Medicare | 279 |
| Different services or procedures | 72 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)33 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)29 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)27 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)16 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 blood pressure75%
- High cholesterol75%
- Diabetes51%
- Arthritis50%
- Chronic kidney disease39%
- Ischemic heart disease36%
Practice locations
Addresses where Joseph S. Lopresti is enrolled with Medicare (CMS data updated October 2, 2026).
- 1700 N Rose Ave, Suite 430Oxnard, CA 93030 (805) 485‑8722
- 901 Campus Dr, Suite 206bDaly City, CA 94015 (216) 965‑3152
Group practices
Medicare enrollment lists Joseph S. Lopresti as a member of these groups (CMS data updated October 2, 2026).
- General Surgery Medical Group of Ventura County6 clinicians in the group
- Ronald Gordon Medical Corporation5 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Un Of California, Irvine, College Of Medicine |
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881697951 |
| 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