DR. LYNN C SIEGEL PSY.D.
NPI 1063507713
Psychologist - Clinical in Calabasas, CA
About Dr. Lynn C Siegel Psy.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LYNN C SIEGEL PSY.D. (NPI 1063507713) is an individual clinical provider in Calabasas, California, licensed in California (PSY 15371) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.
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 (PECOS)
Dr. Lynn C Siegel Psy.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Lynn Siegel reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Calabasas, CA 91302
- Reassigned Medicare billing, California enrollment
- 3 clinicians in this Medicare group
Calabasas, CA 91302
- Reassigned Medicare billing, California enrollment
- 2 clinicians in this Medicare group
Canoga Park, CA 91303
- Reassigned Medicare billing, California enrollment
- 533 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 91302 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CALABASAS, CA 91302
CALABASAS, CA 91302
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 Lynn Siegel's NPI number?
The NPI number for Lynn Siegel is 1063507713. It was assigned to this individual provider in the NPPES registry on October 4, 2006.
Where is Lynn Siegel located?
Lynn Siegel practices at 22231 Mulholland Hwy Ste 106, Calabasas, CA 91302. The listed phone number is (818) 222-9300.
What is Lynn Siegel's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Lynn Siegel enrolled in Medicare?
Yes. Lynn Siegel is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Lynn Siegel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lynn Siegel reassigns Medicare benefits to 3 organizations: Act-Associates In Clinical Therapy, A Psychological Corporation (Calabasas, CA), (Calabasas, CA) and Los Angeles County Department Of Mental Health (Canoga Park, 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 Lynn Siegel'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 Lynn Siegel was last updated on October 11, 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.