DR. CHRISTINA L GREENE MD
NPI 1821381732
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Los Angeles, CA
About Dr. Christina L Greene Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTINA L GREENE MD (NPI 1821381732) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Los Angeles, California, licensed in California (A115814) and active in the NPI registry since May 2011. She is enrolled in Medicare PECOS and is a graduate of University Of Southern California Keck School Of Medicine (2009).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Christina L Greene Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Christina Greene reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 46 clinicians in this Medicare group
Richland, WA 99352
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: The Association Of Chrmc And University Physicians
- 1,443 clinicians in this Medicare group
Olympia, WA 98512
- Reassigned Medicare billing, Washington enrollment
- 4,383 clinicians in this Medicare group
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 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 90095 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 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
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 Greene's NPI number?
The NPI number for Christina Greene is 1821381732. It was assigned to this individual provider in the NPPES registry on May 25, 2011.
Where is Christina Greene located?
Christina Greene practices at 200 Ucla Medical Plz Ste 330, Los Angeles, CA 90095. The listed phone number is (310) 267-7667.
What is Christina Greene's specialty?
The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.
Is Christina Greene enrolled in Medicare?
Yes. Christina Greene is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Christina Greene's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christina Greene reassigns Medicare benefits to 4 organizations: The Regents Of The University Of California (Los Angeles, CA), Association Of Chmc And University Physicians (Richland, WA), Multicare Health System (Olympia, WA) and The Association Of University Physicians (Seattle, WA). 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 Christina Greene's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Christina Greene accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Christina Greene as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Christina Greene was last updated on June 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. Christina L Greene, MD · NPI 1821381732
Thoracic Surgery (Cardiothoracic Vascular Surgery) physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since May 25, 2011.
## Identity
- **NPI:** 1821381732 (Entity type: Individual)
- **Enumerated:** May 25, 2011
- **Primary specialty:** Thoracic Surgery (Cardiothoracic Vascular Surgery) · taxonomy 208G00000X
- **State license:** A115814 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 UCLA MEDICAL PLZ STE 330, Los Angeles, CA 90095-8344
- **Phone:** (310) 267-7667
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): The Regents Of The University Of California (NPI 1912963232, Los Angeles, CA); Association Of Chmc And University Physicians (NPI 1851680664, Richland, WA); Multicare Health System (NPI 1831609775, Olympia, WA); The Association Of University Physicians (NPI 1023041159, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Southern California Keck School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** June 1, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1821381732) · Data from the CMS NPPES public registry.