DR. CHRISTY M STEPHEN M.D.
NPI 1669446571
Family Medicine in Mission Hills, CA
About Dr. Christy M Stephen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTY M STEPHEN M.D. (NPI 1669446571) is an individual family medicine provider in Mission Hills, California, licensed in California (A63613) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1996).
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. Christy M Stephen 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 Christy Stephen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Valencia, CA 91355
- Reassigned Medicare billing, California enrollment
- 684 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 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 11
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 91345 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.
MISSION HILLS, CA 91345
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 Christy Stephen's NPI number?
The NPI number for Christy Stephen is 1669446571. It was assigned to this individual provider in the NPPES registry on February 15, 2006.
Where is Christy Stephen located?
Christy Stephen practices at 11333 N Sepulveda Blvd, Mission Hills, CA 91345. The listed phone number is (818) 869-7269.
What is Christy Stephen's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Christy Stephen enrolled in Medicare?
Yes. Christy Stephen 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 Christy Stephen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christy Stephen reassigns Medicare benefits to 2 organizations: Providence Facey Medical Foundation (Valencia, CA) and Healthcare Partners Affiliates Medical Group (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 Christy Stephen'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 Christy Stephen was last updated on January 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.