MARGARET KORZEWSKI NP
NPI 1699956359
Nurse Practitioner in Sacramento, CA
About Margaret Korzewski Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET KORZEWSKI NP (NPI 1699956359) is an individual nurse practitioner in Sacramento, California, licensed in California (18712) and active in the NPI registry since November 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
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
Margaret Korzewski Np 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 Reassignment
Medicare enrollment records show Margaret Korzewski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Sacramento, CA 95817
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Regents Of The Univ Of Ca
- 2,570 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 4
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 95817 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.
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
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 Margaret Korzewski's NPI number?
The NPI number for Margaret Korzewski is 1699956359. It was assigned to this individual provider in the NPPES registry on November 21, 2007. The provider is also known as Malgorzata Korzewski Np.
Where is Margaret Korzewski located?
Margaret Korzewski practices at 2335 Stockton Blvd, Sacramento, CA 95817. The listed phone number is (916) 734-3800.
What is Margaret Korzewski's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Margaret Korzewski enrolled in Medicare?
Yes. Margaret Korzewski 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 organization bills Medicare for Margaret Korzewski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Korzewski reassigns Medicare benefits to Regents Of The University Of Ca (Sacramento, CA). The 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 Margaret Korzewski'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 Margaret Korzewski was last updated on December 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.
# Margaret Korzewski, NP · NPI 1699956359
Nurse Practitioner physician in Sacramento, California. Individual provider, active in the CMS NPPES registry since November 21, 2007.
## Identity
- **NPI:** 1699956359 (Entity type: Individual)
- **Enumerated:** November 21, 2007
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 18712 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2335 STOCKTON BLVD, Sacramento, CA 95817-2201
- **Phone:** (916) 734-3800 · **Fax:** (916) 734-3801
## 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:** Regents Of The University Of Ca (NPI 1063405074, Sacramento, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** December 7, 2025
- **Other identifiers:** Medicaid 363L00000X-NP (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1699956359) · Data from the CMS NPPES public registry.