JOON CHOI MD A PROFESSIONAL CORPORATION
NPI 1316597693
Clinic/Center - Multi-Specialty in Sun Valley, CA
About Joon Choi Md A Professional Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOON CHOI MD A PROFESSIONAL CORPORATION (NPI 1316597693) is a healthcare organization registered as a multi-specialty in Sun Valley, California and active in the NPI registry since September 2019. The organization lists Razmik Sarkisian, Administrator, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Joon Choi Md A Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by December 31, 2026
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Joon Choi MD 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 (3)
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 Joon Choi MD A Professional Corporation's NPI number?
The NPI number for Joon Choi MD A Professional Corporation is 1316597693. It was assigned to this organization in the NPPES registry on September 18, 2019.
Where is Joon Choi MD A Professional Corporation located?
Joon Choi MD A Professional Corporation is located at 8100 Sunland Blvd, Sun Valley, CA 91352. The listed phone number is (818) 242-6811.
What is Joon Choi MD A Professional Corporation's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Multi-Specialty, with taxonomy code 261QM1300X.
Is Joon Choi MD A Professional Corporation enrolled in Medicare?
Yes. Joon Choi MD A Professional Corporation is registered in the Medicare PECOS enrollment system.
When is Joon Choi MD A Professional Corporation's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by December 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Joon Choi MD A Professional Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Joon Choi MD A Professional Corporation, in Nurse Practitioner and Obstetrics/Gynecology. 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 Joon Choi MD A Professional Corporation was last updated on September 18, 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.
# Joon Choi Md A Professional Corporation · NPI 1316597693
Multi-Specialty organization in Sun Valley, California. Organization record, active in the CMS NPPES registry since September 18, 2019.
## Identity
- **NPI:** 1316597693 (Entity type: Organization)
- **Enumerated:** September 18, 2019
- **Primary specialty:** Clinic/Center - Multi-Specialty · taxonomy 261QM1300X
- **Organization subpart:** Yes (part of Joon Choi Md A Professional Corporation)
- **Authorized official:** Razmik Sarkisian, ADMINISTRATOR
## Practice location
- **Address:** 8100 SUNLAND BLVD, Sun Valley, CA 91352-3948
- **Phone:** (818) 242-6811
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** December 31, 2026 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 3 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Obstetrics/Gynecology (2), Nurse Practitioner (1); 2 practice at this address and 3 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 18, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1316597693) · Data from the CMS NPPES public registry.