DR. CHRISTY LYNN ANNIS M.D.
NPI 1104042597
Emergency Medicine in Mishawaka, IN
About Dr. Christy Lynn Annis M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTY LYNN ANNIS M.D. (NPI 1104042597) is an individual emergency medicine provider in Mishawaka, Indiana, licensed in Indiana (01069919) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 5
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Christy Lynn Annis M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Christy Annis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mishawaka, IN 46545
- Reassigned Medicare billing, Indiana enrollment
- 598 clinicians in this Medicare group
Elkhart, IN 46514
- Reassigned Medicare billing, Indiana enrollment
- 79 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 4
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 46545 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.
MISHAWAKA, IN 46545
MISHAWAKA, IN 46545
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 Annis's NPI number?
The NPI number for Christy Annis is 1104042597. It was assigned to this individual provider in the NPPES registry on April 17, 2007. The provider is also known as Miss Christy Lynn Hauck.
Where is Christy Annis located?
Christy Annis practices at 5215 Holy Cross Pkwy Emergency Department, Mishawaka, IN 46545. The listed phone number is (574) 335-5000.
What is Christy Annis's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Christy Annis enrolled in Medicare?
Yes. Christy Annis is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Christy Annis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christy Annis reassigns Medicare benefits to 2 organizations: Cep America LLC (Mishawaka, IN) and Elite Emergency Physicians Inc (Elkhart, IN). 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 Annis'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 Annis was last updated on December 16, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.