MR. NICOLAS RICHARD LAZAREWICZ FNP
NPI 1053540120
Nurse Practitioner in Vacaville, CA
About Mr. Nicolas Richard Lazarewicz Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. NICOLAS RICHARD LAZAREWICZ FNP (NPI 1053540120) is an individual nurse practitioner in Vacaville, California, licensed in California (18973) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses
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
Mr. Nicolas Richard Lazarewicz Fnp 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
2Medicare enrollment records show Nicolas Lazarewicz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Vacaville, CA 95687
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Northbay Physicians Surgery Center, LLC
- 516 clinicians in this Medicare group
Fairfield, CA 94534
- Reassigned Medicare billing, California enrollment
- 225 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.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95687 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
VACAVILLE, CA 95687
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 Nicolas Lazarewicz's NPI number?
The NPI number for Nicolas Lazarewicz is 1053540120. It was assigned to this individual provider in the NPPES registry on July 9, 2009.
Where is Nicolas Lazarewicz located?
Nicolas Lazarewicz practices at 421 Nut Tree Rd, Vacaville, CA 95687. The listed phone number is (707) 624-7500.
What is Nicolas Lazarewicz's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Nicolas Lazarewicz enrolled in Medicare?
Yes. Nicolas Lazarewicz 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 Nicolas Lazarewicz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nicolas Lazarewicz reassigns Medicare benefits to 2 organizations: Northbay Healthcare Group (Vacaville, CA) and Northbay Health Medical Foundation (Fairfield, CA). 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 Nicolas Lazarewicz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Nicolas Lazarewicz was last updated on April 11, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.