RIANA NICOLAYSEN
NPI 1952145351
Nurse Practitioner in Tarzana, CA
About Riana Nicolaysen NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RIANA NICOLAYSEN (NPI 1952145351) is an individual nurse practitioner in Tarzana, California, licensed in Pennsylvania (SP030566) and active in the NPI registry since June 2024. She is enrolled in Medicare PECOS, maintains a secondary practice location in Philadelphia, and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Riana Nicolaysen 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91356 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.
TARZANA, CA 91356
TARZANA, CA 91356
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 Riana Nicolaysen's NPI number?
The NPI number for Riana Nicolaysen is 1952145351. It was assigned to this individual provider in the NPPES registry on June 20, 2024.
Where is Riana Nicolaysen located?
Riana Nicolaysen practices at 18646 Oxnard St, Tarzana, CA 91356. The listed phone number is (818) 996-1051.
What is Riana Nicolaysen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Riana Nicolaysen enrolled in Medicare?
Yes. Riana Nicolaysen 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.
When was this NPI record last updated?
The NPPES record for Riana Nicolaysen was last updated on February 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Riana Nicolaysen · NPI 1952145351
Nurse Practitioner physician in Tarzana, California. Individual provider, active in the CMS NPPES registry since June 20, 2024.
## Identity
- **NPI:** 1952145351 (Entity type: Individual)
- **Enumerated:** June 20, 2024
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** SP030566 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 18646 OXNARD ST, Tarzana, CA 91356-1486
- **Phone:** (818) 996-1051
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** February 27, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1952145351) · Data from the CMS NPPES public registry.