OAKS SURGICAL SPECIALISTS, A MEDICAL CORPORATION
NPI 1538560842
Surgery in Northridge, CA
About Oaks Surgical Specialists, A Medical Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OAKS SURGICAL SPECIALISTS, A MEDICAL CORPORATION (NPI 1538560842) is a healthcare organization registered as a surgery in Northridge, California and active in the NPI registry since September 2014. The organization lists Walid S. Arnaout, Ceo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Group Practice 1
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)
Oaks Surgical Specialists, A Medical Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by October 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
8Medicare enrollment records show 8 clinicians reassign Medicare billing to Oaks Surgical Specialists, A Medical Corporation, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.
Clinicians, nearest first (8)
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 Oaks Surgical Specialists, A Medical Corporation's NPI number?
The NPI number for Oaks Surgical Specialists, A Medical Corporation is 1538560842. It was assigned to this organization in the NPPES registry on September 6, 2014.
Where is Oaks Surgical Specialists, A Medical Corporation located?
Oaks Surgical Specialists, A Medical Corporation is located at 18250 Roscoe Blvd Ste 220, Northridge, CA 91325. The listed phone number is (818) 280-3901.
What is Oaks Surgical Specialists, A Medical Corporation's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Oaks Surgical Specialists, A Medical Corporation enrolled in Medicare?
Yes. Oaks Surgical Specialists, A Medical Corporation is registered in the Medicare PECOS enrollment system.
When is Oaks Surgical Specialists, A Medical 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 October 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 Oaks Surgical Specialists, A Medical Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 3 Medicare specialties reassign their Medicare billing to Oaks Surgical Specialists, A Medical 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. The largest specialties are General Surgery (6), Hospitalist (1) and Internal Medicine (1). Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Oaks Surgical Specialists, A Medical Corporation was last updated on October 10, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Oaks Surgical Specialists, A Medical Corporation · NPI 1538560842
Surgery organization in Northridge, California. Organization record, active in the CMS NPPES registry since September 6, 2014.
## Identity
- **NPI:** 1538560842 (Entity type: Organization)
- **Enumerated:** September 6, 2014
- **Primary specialty:** Surgery · taxonomy 208600000X
- **Organization subpart:** No
- **Authorized official:** Walid Arnaout, CEO
## Practice location
- **Address:** 18250 ROSCOE BLVD STE 220, Northridge, CA 91325-4271
- **Phone:** (818) 280-3901 · **Fax:** (805) 379-9695
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** October 31, 2026 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 8 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: General Surgery (6), Hospitalist (1), Internal Medicine (1); 1 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 10, 2023
- **Other identifiers:** Other 1023072816 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1538560842) · Data from the CMS NPPES public registry.