DR. CHRISTINE LILLJA PSY.D.
NPI 1629610423
Psychologist - Clinical in Lake Forest, CA
About Dr. Christine Lillja Psy.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTINE LILLJA PSY.D. (NPI 1629610423) is an individual clinical provider in Lake Forest, California, licensed in California (31094) and active in the NPI registry since October 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
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
Dr. Christine Lillja Psy.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 Reassignment
Medicare enrollment records show Christine Lillja reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Lake Forest, CA 92630
- Reassigned Medicare billing, California enrollment
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 92630 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
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 Christine Lillja's NPI number?
The NPI number for Christine Lillja is 1629610423. It was assigned to this individual provider in the NPPES registry on October 13, 2019.
Where is Christine Lillja located?
Christine Lillja practices at 22996 El Toro Rd Ste 107, Lake Forest, CA 92630. The listed phone number is (949) 235-5104.
What is Christine Lillja's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Christine Lillja enrolled in Medicare?
Yes. Christine Lillja 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 Christine Lillja's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christine Lillja reassigns Medicare benefits to Drchriscounseling LLC (Lake Forest, 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 Christine Lillja'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 Christine Lillja was last updated on June 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Dr. Christine Lillja, PSY.D. · NPI 1629610423
Clinical provider in Lake Forest, California. Individual provider, active in the CMS NPPES registry since October 13, 2019.
## Identity
- **NPI:** 1629610423 (Entity type: Individual)
- **Enumerated:** October 13, 2019
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **State license:** 31094 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 22996 EL TORO RD STE 107, Lake Forest, CA 92630-4961
- **Phone:** (949) 235-5104
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Drchriscounseling LLC (NPI 1801768510, Lake Forest, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** June 27, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1629610423) · Data from the CMS NPPES public registry.