Individual provider

Christina Greene, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Medicare enrolled

Christina Greene, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Los Angeles, CA, registered under NPI 1821381732.

Getting there

The practice address on file is 200 UCLA MEDICAL PLZ STE 330, Los Angeles, CA 90095. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

200 UCLA MEDICAL PLZ STE 330, Los Angeles, CA 90095 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
A115814 CA Thoracic Surgery (Cardiothoracic Vascular… primary
MD61166872 WA Thoracic Surgery (Cardiothoracic Vascular…

Licences are recorded in 2 states: CA, WA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Thoracic Surgery
PAC ID
3577710979
Enrollment ID
I20210727003091

Medicare enrolment is recorded as approved under the provider type Practitioner - Thoracic Surgery. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 2 states

This provider holds licences in 2 states: California and Washington. The practice address on file is in Los Angeles, CA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

CA California practice address
Licence
A115814
Specialty
Thoracic Surgery (Cardiothoracic…
Verify with the CA board →
WA Washington
Licence
MD61166872
Specialty
Thoracic Surgery (Cardiothoracic…
Verify with the WA board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Thoracic Surgery (Cardiothoracic Vascular Surgery) covers

A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty. NUCC Health Care Provider Taxonomy, code 208G00000X
Allopathic & Osteopathic Physicians Thoracic Surgery (Cardiothoracic Vascular Surgery)

All registered taxonomy codes

This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician A115814 CA primary
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician MD61166872 WA

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1821381732 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateMay 25, 2011
Last updatedJun 1, 2026
StatusActive
Sole proprietorNo
CredentialMD
Practice address 200 UCLA MEDICAL PLZ STE 330
Los Angeles, CA 90095
(310) 267-7667
Mailing address 5767 W CENTURY BLVD STE 400
Los Angeles, CA 90045
This record was updated on Jun 1, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1821381732 passes the NPI check digit test The final digit 2 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 8 2 1 3 8 1 7 3
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 8 4 1 6 8 2 7 6

Sum = 68 · next multiple of 10 = 70 · check digit = 2 · actual last digit = 2

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1821381732?
NPI 1821381732 is the National Provider Identifier assigned to Christina Greene, MD in Los Angeles, CA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician cover?
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves…
How do I contact Christina Greene, MD?
The phone number on file with NPPES is (310) 267-7667, last updated Jun 1, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Christina Greene, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1821381732 a valid number?
Yes. 1821381732 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.