CALIFORNIA DIAGNOSTIC SPECIALISTS, INC.
NPI 1982267001
Specialist/Technologist, Other - Electroneurodiagnostic in Garden Grove, CA
About California Diagnostic Specialists, Inc. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CALIFORNIA DIAGNOSTIC SPECIALISTS, INC. (NPI 1982267001) is a healthcare organization registered as an electroneurodiagnostic in Garden Grove, California and active in the NPI registry since April 2019. The organization lists Jeffrey Tan Ho, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
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)
California Diagnostic Specialists, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
7Medicare enrollment records show 7 clinicians reassign Medicare billing to California Diagnostic Specialists, Inc., which bills Medicare for the services they deliver. Of these, 1 practice at this address and 4 within 10 miles. They are listed nearest first.
Clinicians, nearest first (7)
Garden Grove, CA 92844
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 California Diagnostic Specialists, Inc.'s NPI number?
The NPI number for California Diagnostic Specialists, Inc. is 1982267001. It was assigned to this organization in the NPPES registry on April 15, 2019.
Where is California Diagnostic Specialists, Inc. located?
California Diagnostic Specialists, Inc. is located at 9191 Westminster Ave # 209, Garden Grove, CA 92844. The listed phone number is (626) 678-3579.
What is California Diagnostic Specialists, Inc.'s specialty?
The primary specialty registered for this NPI is Specialist/Technologist, Other, specializing in Electroneurodiagnostic, with taxonomy code 246ZE0600X.
Is California Diagnostic Specialists, Inc. enrolled in Medicare?
Yes. California Diagnostic Specialists, Inc. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through California Diagnostic Specialists, Inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 2 Medicare specialties reassign their Medicare billing to California Diagnostic Specialists, Inc.. 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. The largest specialties are Physical Medicine and Rehabilitation (6) and Physical Therapist in Private Practice (1). Of these, 1 practice at this address and 4 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 California Diagnostic Specialists, Inc. was last updated on April 15, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# California Diagnostic Specialists, Inc. · NPI 1982267001
Electroneurodiagnostic organization in Garden Grove, California. Organization record, active in the CMS NPPES registry since April 15, 2019.
## Identity
- **NPI:** 1982267001 (Entity type: Organization)
- **Enumerated:** April 15, 2019
- **Primary specialty:** Specialist/Technologist, Other - Electroneurodiagnostic · taxonomy 246ZE0600X
- **Organization subpart:** No
- **Authorized official:** Jeffrey Ho, OWNER
## Practice location
- **Address:** 9191 WESTMINSTER AVE # 209, Garden Grove, CA 92844-2751
- **Phone:** (626) 678-3579 · **Fax:** (714) 459-7047
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 7 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Physical Medicine and Rehabilitation (6), Physical Therapist in Private Practice (1); 1 practice at this address and 4 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 15, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1982267001) · Data from the CMS NPPES public registry.