ARIELLE CZERWINSKI M.D.
NPI 1790164036
Pediatrics in Tarzana, CA
About Arielle Czerwinski M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ARIELLE CZERWINSKI M.D. (NPI 1790164036) is an individual pediatrics provider in Tarzana, California, licensed in California (146136) and active in the NPI registry since May 2015. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of California, Irvine, California College Of Medicine (2010).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Arielle Czerwinski M.d. 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 Arielle Czerwinski reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 2,118 clinicians in this Medicare group
Los Angeles, CA 90027
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Childrens Hospital Los Angeles Medical Group Inc
- 1,281 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.
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.
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 Arielle Czerwinski's NPI number?
The NPI number for Arielle Czerwinski is 1790164036. It was assigned to this individual provider in the NPPES registry on May 20, 2015.
Where is Arielle Czerwinski located?
Arielle Czerwinski practices at 18321 Clark St, Tarzana, CA 91356. The listed phone number is (818) 881-0800.
What is Arielle Czerwinski's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Arielle Czerwinski enrolled in Medicare?
Yes. Arielle Czerwinski 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 Arielle Czerwinski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Arielle Czerwinski reassigns Medicare benefits to 2 organizations: Cedars-Sinai Medical Care Foundation (Los Angeles, CA) and Children's Hospital Los Angeles Medical Group, Inc. (Los Angeles, 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 Arielle Czerwinski'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 Arielle Czerwinski was last updated on July 1, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Arielle Czerwinski, M.D. · NPI 1790164036
Pediatrics physician in Tarzana, California. Individual provider, active in the CMS NPPES registry since May 20, 2015.
## Identity
- **NPI:** 1790164036 (Entity type: Individual)
- **Enumerated:** May 20, 2015
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 146136 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 18321 CLARK ST, Tarzana, CA 91356-3501
- **Phone:** (818) 881-0800
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Cedars-Sinai Medical Care Foundation (NPI 1043826720, Los Angeles, CA); Children's Hospital Los Angeles Medical Group, Inc. (NPI 1265530653, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Irvine, California College Of Medicine, class of 2010
## Record status
- **NPPES last updated:** July 1, 2020
---
Source: [NPI Profile](https://npiprofile.com/npi/1790164036) · Data from the CMS NPPES public registry.