DR. ANDREW F NASSERI MD
NPI 1558386367
Thoracic Surgery (Cardiothoracic Vascular Surgery) in La Jolla, CA
About Dr. Andrew F Nasseri Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANDREW F NASSERI MD (NPI 1558386367) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in La Jolla, California, licensed in Texas (V3058) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with St Francis Medical Center, and maintains a secondary practice location in Monroe.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
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. Andrew F Nasseri Md 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 Andrew Nasseri reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
La Jolla, CA 92037
- Reassigned Medicare billing, California enrollment
Tyler, TX 75702
- Reassigned Medicare billing, Texas enrollment
- 2,745 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
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.
St Francis Medical Center
Acute Care Hospitals · Monroe, LAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92037 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.
LA JOLLA, CA 92037
LA JOLLA, CA 92037
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 Andrew Nasseri's NPI number?
The NPI number for Andrew Nasseri is 1558386367. It was assigned to this individual provider in the NPPES registry on July 13, 2006.
Where is Andrew Nasseri located?
Andrew Nasseri practices at 9888 Genesee Ave, La Jolla, CA 92037. The listed phone number is (209) 222-0801.
What is Andrew Nasseri's specialty?
The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.
Is Andrew Nasseri enrolled in Medicare?
Yes. Andrew Nasseri 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 Andrew Nasseri's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Nasseri reassigns Medicare benefits to 2 organizations: Andrew Nasseri MD Inc. (La Jolla, CA) and Christus Trinity Clinic Texas (Tyler, TX). 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 Andrew Nasseri's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Andrew Nasseri affiliated with any hospitals?
According to CMS data, Andrew Nasseri is affiliated with St Francis Medical Center.
When was this NPI record last updated?
The NPPES record for Andrew Nasseri was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days 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. Andrew F Nasseri, MD · NPI 1558386367
Thoracic Surgery (Cardiothoracic Vascular Surgery) physician in La Jolla, California. Individual provider, active in the CMS NPPES registry since July 13, 2006.
## Identity
- **NPI:** 1558386367 (Entity type: Individual)
- **Enumerated:** July 13, 2006
- **Primary specialty:** Thoracic Surgery (Cardiothoracic Vascular Surgery) · taxonomy 208G00000X
- **State license:** V3058 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 9888 GENESEE AVE, La Jolla, CA 92037-1205
- **Phone:** (209) 222-0801
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Andrew Nasseri MD Inc. (NPI 1356972798, La Jolla, CA); Christus Trinity Clinic Texas (NPI 1285684225, Tyler, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1999
## Record status
- **NPPES last updated:** September 10, 2026
- **Other identifiers:** Medicaid 040056300 (DC)
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Source: [NPI Profile](https://npiprofile.com/npi/1558386367) · Data from the CMS NPPES public registry.