JOANNE M. HAMILTON PSYCHOLOGIST A PROFESSIONAL CORPORATION
NPI 1144428467
Clinical Neuropsychologist in San Diego, CA
About Joanne M. Hamilton Psychologist A Professional Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOANNE M. HAMILTON PSYCHOLOGIST A PROFESSIONAL CORPORATION (NPI 1144428467) is a healthcare organization registered as a clinical neuropsychologist in San Diego, California and active in the NPI registry since July 2007. The organization lists Joanne Marie Hamilton, Sole Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Joanne M. Hamilton Psychologist A Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
6Medicare enrollment records show 6 clinicians reassign Medicare billing to Joanne M. Hamilton Psychologist A Professional Corporation, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 3 within 10 miles. They are listed nearest first.
Clinicians, nearest first (6)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Joanne M. Hamilton Psychologist A Professional Corporation's NPI number?
The NPI number for Joanne M. Hamilton Psychologist A Professional Corporation is 1144428467. It was assigned to this organization in the NPPES registry on July 8, 2007.
Where is Joanne M. Hamilton Psychologist A Professional Corporation located?
Joanne M. Hamilton Psychologist A Professional Corporation is located at 9968 Hibert St Ste 105, San Diego, CA 92131. The listed phone number is (858) 693-3113.
What is Joanne M. Hamilton Psychologist A Professional Corporation's specialty?
The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.
Is Joanne M. Hamilton Psychologist A Professional Corporation enrolled in Medicare?
Yes. Joanne M. Hamilton Psychologist A Professional Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Joanne M. Hamilton Psychologist A Professional Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians, all in Clinical Psychologist, reassign their Medicare billing to Joanne M. Hamilton Psychologist A Professional Corporation. A 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 the clinician's services. Of these, 2 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Joanne M. Hamilton Psychologist A Professional Corporation was last updated on March 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Joanne M. Hamilton Psychologist A Professional Corporation · NPI 1144428467
Clinical Neuropsychologist organization in San Diego, California. Organization record, active in the CMS NPPES registry since July 8, 2007.
## Identity
- **NPI:** 1144428467 (Entity type: Organization)
- **Enumerated:** July 8, 2007
- **Primary specialty:** Clinical Neuropsychologist · taxonomy 103G00000X
- **Organization subpart:** No
- **Authorized official:** Joanne Hamilton, SOLE OWNER
## Practice location
- **Address:** 9968 HIBERT ST STE 105, San Diego, CA 92131-1036
- **Phone:** (858) 693-3113 · **Fax:** (858) 312-8460
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 6 clinicians (Clinical Psychologist) reassign Medicare billing to this organization (form CMS-855R); 2 practice at this address and 3 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 11, 2026
- **Other identifiers:** Other 1649211178 (CA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1144428467) · Data from the CMS NPPES public registry.