DR. ARINN ASHLEY TESTA PSYD
NPI 1548700289
Psychologist - Clinical in San Rafael, CA
About Dr. Arinn Ashley Testa Psyd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ARINN ASHLEY TESTA PSYD (NPI 1548700289) is an individual clinical provider in San Rafael, California, licensed in California (22398) and active in the NPI registry since February 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2001).
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)
Dr. Arinn Ashley Testa Psyd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Arinn Testa reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Napa, CA 94558
- Reassigned Medicare billing, California enrollment
- 755 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94903 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.
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 Arinn Testa's NPI number?
The NPI number for Arinn Testa is 1548700289. It was assigned to this individual provider in the NPPES registry on February 28, 2017.
Where is Arinn Testa located?
Arinn Testa practices at 4020 Civic Center Dr, San Rafael, CA 94903. The listed phone number is (415) 471-9962.
What is Arinn Testa's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Arinn Testa enrolled in Medicare?
Yes. Arinn Testa is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Arinn Testa's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Arinn Testa reassigns Medicare benefits to Department Of State Hospitals (Napa, 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 Arinn Testa'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 Arinn Testa was last updated on October 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Arinn Ashley Testa, PSYD · NPI 1548700289
Clinical provider in San Rafael, California. Individual provider, active in the CMS NPPES registry since February 28, 2017.
## Identity
- **NPI:** 1548700289 (Entity type: Individual)
- **Enumerated:** February 28, 2017
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **State license:** 22398 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4020 CIVIC CENTER DR, San Rafael, CA 94903-4173
- **Phone:** (415) 471-9962
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Department Of State Hospitals (NPI 1326098161, Napa, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** October 22, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1548700289) · Data from the CMS NPPES public registry.