JONATHAN NASSOS PC
NPI 1578810339
Orthopaedic Surgery - Sports Medicine in Sherman Oaks, CA

Q: What is Jonathan Nassos PC's NPI number?

The NPI number for Jonathan Nassos PC is 1578810339. It was assigned to this organization in the NPPES registry on August 12, 2012.

Q: What is Jonathan Nassos PC's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Sports Medicine, with taxonomy code 207XX0005X.

Active since August 12, 2012

5651 SEPULVEDA BLVD, SUITE 201, SHERMAN OAKS, CA 91411(818) 788-2400(818) 788-2400 Get Directions Write a Review

NPPES record last updated: July 7, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Jonathan Nassos Pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JONATHAN NASSOS PC (NPI 1578810339) is a healthcare organization registered as a sports medicine in Sherman Oaks, California and active in the NPI registry since August 2012. The organization lists Jonathan T Nassos, Owner/president, as its authorized official.

NPPES Registry Identity

NPI1578810339

Entity TypeOrganization

Primary Taxonomy207XX0005X

Legal Business NameJONATHAN NASSOS PC

Location Address5651 SEPULVEDA BLVD, SUITE 201Sherman Oaks, CA 91411-2916

Mailing Address5651 Sepulveda Blvd, Suite 201Sherman Oaks, CA 91411-2916 · (818) 788-2400 · Fax (818) 788-2453

Phone(818) 788-2400

Fax(818) 788-2400

Organization SubpartNo

Authorized OfficialJonathan T NassosOwner/president · (310) 273-2731

Enumeration DateAugust 12, 2012

Last NPPES UpdateJuly 7, 2014

✔ NPI 1578810339 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Sports MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207XX0005X

Definition

An orthopaedic surgeon trained in sports medicine provides appropriate care for all structures of the musculoskeletal system directly affected by participation in sporting activity. This specialist is proficient in areas including conditioning, training and fitness, athletic performance and the impact of dietary supplements, pharmaceuticals, and nutrition on performance and health, coordination of care within the team setting utilizing other health care professionals, field evaluation and management, soft tissue biomechanics and injury healing and repair. Knowledge and understanding of the principles and techniques of rehabilitation, athletic equipment and orthotic devices enables the specialist to prevent and manage athletic injuries.

5651 SEPULVEDA BLVD, Sherman Oaks, CA 91411

Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jonathan Nassos Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Jonathan Nassos PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Jonathan Nassos, M.D.

Orthopedic Surgery

NPI 1770761934

6374 N LINCOLN AVE SUITE 301
Chicago, IL 60659

(773) 463-2377

✔ PECOS✔ Accepts Medicare1,750 mi

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 Jonathan Nassos PC's NPI number?

The NPI number for Jonathan Nassos PC is 1578810339. It was assigned to this organization in the NPPES registry on August 12, 2012.

Where is Jonathan Nassos PC located?

Jonathan Nassos PC is located at 5651 Sepulveda Blvd Suite 201, Sherman Oaks, CA 91411. The listed phone number is (818) 788-2400.

What is Jonathan Nassos PC's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Sports Medicine, with taxonomy code 207XX0005X.

Is Jonathan Nassos PC enrolled in Medicare?

Yes. Jonathan Nassos PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Jonathan Nassos PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Orthopedic Surgery) reassigns their Medicare billing to Jonathan Nassos PC. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Jonathan Nassos PC was last updated on July 7, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.