DR. ALEXANDER A KHALESSI M.D., MS
NPI 1073786661
Neurological Surgery in San Diego, CA
About Dr. Alexander A Khalessi M.d., Ms NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEXANDER A KHALESSI M.D., MS (NPI 1073786661) is an individual neurological surgery provider in San Diego, California, licensed in California (A95850) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS and is a graduate of Johns Hopkins University School Of Medicine (2004).
NPPES Registry Identity
Specialties & Licenses
Other Names 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. Alexander A Khalessi M.d., Ms 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 Alexander Khalessi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 42 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 5
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 92103 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.
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
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 Alexander Khalessi's NPI number?
The NPI number for Alexander Khalessi is 1073786661. It was assigned to this individual provider in the NPPES registry on April 4, 2008. The provider is also known as Arash A Khalessi M.D..
Where is Alexander Khalessi located?
Alexander Khalessi practices at 200 W Arbor Dr Mc 8893, San Diego, CA 92103. The listed phone number is (619) 543-5529.
What is Alexander Khalessi's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Alexander Khalessi enrolled in Medicare?
Yes. Alexander Khalessi 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 Alexander Khalessi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Khalessi reassigns Medicare benefits to Regents Of The University Of California (San Diego, CA). 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 Alexander Khalessi'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 Alexander Khalessi was last updated on June 6, 2014. 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.