JAN A WINETZ MD
NPI 1790777852
Internal Medicine - Nephrology in San Jose, CA
About Jan A Winetz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAN A WINETZ MD (NPI 1790777852) is an individual nephrology provider in San Jose, California, licensed in California (G412450) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Renown Regional Medical Center, and is a graduate of Other (1976).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Jan A Winetz Md 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 Reassignments
4Medicare enrollment records show Jan Winetz reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fairfield, CA 94533
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Northbay Physicians Surgery Center, LLC
- 516 clinicians in this Medicare group
Carson City, NV 89703
- Reassigned Medicare billing, Nevada enrollment
- 45 clinicians in this Medicare group
Reno, NV 89509
- Reassigned Medicare billing, Nevada enrollment
- 58 clinicians in this Medicare group
Sparks, NV 89434
- Reassigned Medicare billing, Nevada enrollment
- 13 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.
Renown Regional Medical Center
Acute Care Hospitals · Reno, NVPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95124 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.
SAN JOSE, CA 95124
SAN JOSE, CA 95124
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 Jan Winetz's NPI number?
The NPI number for Jan Winetz is 1790777852. It was assigned to this individual provider in the NPPES registry on August 16, 2005.
Where is Jan Winetz located?
Jan Winetz practices at 2505 Samaritan Dr Ste 405, San Jose, CA 95124. The listed phone number is (408) 356-8133.
What is Jan Winetz's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Jan Winetz enrolled in Medicare?
Yes. Jan Winetz 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 organizations bill Medicare for Jan Winetz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jan Winetz reassigns Medicare benefits to 4 organizations: Northbay Healthcare Group (Fairfield, CA), Ch Specialty Services Nv Requeijo PC (Carson City, NV), Curana Health Of Nevada PLLC (Reno, NV) and Gad 3 LLC (Sparks, NV). Each 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 Jan Winetz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jan Winetz accept?
Health plans from Molina Healthcare list Jan Winetz 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 Jan Winetz affiliated with any hospitals?
According to CMS data, Jan Winetz is affiliated with Renown Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Jan Winetz was last updated on May 17, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.
# Jan A Winetz, MD · NPI 1790777852
Nephrology physician in San Jose, California. Individual provider, active in the CMS NPPES registry since August 16, 2005.
## Identity
- **NPI:** 1790777852 (Entity type: Individual)
- **Enumerated:** August 16, 2005
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** G412450 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2505 SAMARITAN DR, STE 405, San Jose, CA 95124-4006
- **Phone:** (408) 356-8133 · **Fax:** (408) 356-6923
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Northbay Healthcare Group (NPI 1821147786, Fairfield, CA); Ch Specialty Services Nv Requeijo PC (NPI 1598464406, Carson City, NV); Curana Health Of Nevada PLLC (NPI 1649755646, Reno, NV); Gad 3 LLC (NPI 1538997119, Sparks, NV) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1976
## Record status
- **NPPES last updated:** May 17, 2016
- **Other identifiers:** Medicare UPIN A89723; Medicare ID-Type Unspecified 00G412450; Medicaid 00G412450 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1790777852) · Data from the CMS NPPES public registry.