DR. CHRISTINA E. DAY M.D.
NPI 1245482835
Pathology - Anatomic Pathology in Los Angeles, CA
About Dr. Christina E. Day M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTINA E. DAY M.D. (NPI 1245482835) is an individual anatomic pathology provider in Los Angeles, California, licensed in California (A97872) and active in the NPI registry since October 2008. She is enrolled in Medicare PECOS, is affiliated with White Plains Hospital Center, and is a graduate of Other (2002).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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. Christina E. Day 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 Reassignment
Medicare enrollment records show Christina Day reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
White Plains, NY 10601
- Reassigned Medicare billing, New York enrollment
- 479 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 2
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
White Plains Hospital Center
Acute Care Hospitals · White Plains, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
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 Christina Day's NPI number?
The NPI number for Christina Day is 1245482835. It was assigned to this individual provider in the NPPES registry on October 15, 2008.
Where is Christina Day located?
Christina Day practices at 1500 San Pablo St Suite 212, Los Angeles, CA 90033. The listed phone number is (323) 442-9598.
What is Christina Day's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology, with taxonomy code 207ZP0101X.
Is Christina Day enrolled in Medicare?
Yes. Christina Day 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 Christina Day's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christina Day reassigns Medicare benefits to East Post Road Medical Services PC (White Plains, NY). 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 Christina Day's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Christina Day affiliated with any hospitals?
According to CMS data, Christina Day is affiliated with White Plains Hospital Center.
When was this NPI record last updated?
The NPPES record for Christina Day was last updated on December 11, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. Christina E. Day, M.D. · NPI 1245482835
Anatomic Pathology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since October 15, 2008.
## Identity
- **NPI:** 1245482835 (Entity type: Individual)
- **Enumerated:** October 15, 2008
- **Primary specialty:** Pathology - Anatomic Pathology · taxonomy 207ZP0101X
- **State license:** A97872 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 SAN PABLO ST, SUITE 212, Los Angeles, CA 90033-5313
- **Phone:** (323) 442-9598 · **Fax:** (323) 442-2588
## 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:** East Post Road Medical Services PC (NPI 1841767274, White Plains, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2002
## Record status
- **NPPES last updated:** December 11, 2013
- **Other identifiers:** Other 1902846306 (CA); Medicare PIN FV789Z (CA); Medicare PIN W18762 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1245482835) · Data from the CMS NPPES public registry.