Jonathan Nassos PC
NPI 1578810339 · Sports Medicine (Orthopaedic Surgery) Physician · Sherman Oaks, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Nassos PC is a Sports Medicine (Orthopaedic Surgery) Physician organization in Sherman Oaks, CA (NPI 1578810339).
Provider details
- NPI number
- 1578810339
- Entity type
- Organization
- Primary specialty
- Sports Medicine (Orthopaedic Surgery) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jonathan Nassos, Owner/President(310) 273-2731
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-08-12
- Last updated
- 2014-07-07
Frequently asked questions
- What is Jonathan Nassos PC's NPI number?
- Jonathan Nassos PC's National Provider Identifier (NPI) is 1578810339, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jonathan Nassos PC?
- Jonathan Nassos PC is classified in the NPPES registry as Sports Medicine (Orthopaedic Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Nassos PC located?
- Jonathan Nassos PC's practice location on file with NPPES is 5651 Sepulveda Blvd, Sherman Oaks, CA 91411-2916.
- What is Jonathan Nassos PC's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Nassos PC is (818) 788-2400.
- Does Jonathan Nassos PC accept Medicare?
- Jonathan Nassos PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Jonathan Nassos PC?
- The authorized official listed on Jonathan Nassos PC's NPPES record is Jonathan Nassos, Owner/President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jonathan Nassos PC's NPI active?
- Yes — Jonathan Nassos PC's NPI (1578810339) is active in the NPPES registry as of the last update on 2014-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.