NEIL S. ALEX MD
NPI 1528139433
Psychiatry & Neurology - Child & Adolescent Psychiatry in San Diego, CA
About Neil S. Alex Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NEIL S. ALEX MD (NPI 1528139433) is an individual child & adolescent psychiatry provider in San Diego, California, licensed in California (G21389) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Neil S. Alex Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Neil Alex reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Salem, OR 97317
- Reassigned Medicare billing, Oregon and Washington enrollments
- Medicare enrollment name: Kaiser Foundation Health Plan Of The Northwest
- Also billed through NPI 1871848457 (Washington)
- 3,207 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.
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 92120
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 Neil Alex's NPI number?
The NPI number for Neil Alex is 1528139433. It was assigned to this individual provider in the NPPES registry on November 13, 2006.
Where is Neil Alex located?
Neil Alex practices at 4647 Zion Ave, San Diego, CA 92120. The listed phone number is (619) 528-5000.
What is Neil Alex's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.
Is Neil Alex enrolled in Medicare?
Yes. Neil Alex is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Neil Alex's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Neil Alex reassigns Medicare benefits to South Salem Rehabilitation, LLC (Salem, OR). 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 Neil Alex'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 Neil Alex was last updated on February 4, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Neil S. Alex, MD · NPI 1528139433
Child & Adolescent Psychiatry physician in San Diego, California. Individual provider, active in the CMS NPPES registry since November 13, 2006.
## Identity
- **NPI:** 1528139433 (Entity type: Individual)
- **Enumerated:** November 13, 2006
- **Primary specialty:** Psychiatry & Neurology - Child & Adolescent Psychiatry · taxonomy 2084P0804X
- **State license:** G21389 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4647 ZION AVE, San Diego, CA 92120-2507
- **Phone:** (619) 528-5000
## 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:** South Salem Rehabilitation, LLC (NPI 1215071998, Salem, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 4, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1528139433) · Data from the CMS NPPES public registry.