NPPES file of Aug 9, 2026

Oak Tree Orthopedics INC in Corona, CA

This organization bills under NPI 1356061949, an organization record issued on Sep 1, 2022 with the primary taxonomy Orthopaedic Surgery Physician. Each clinician who works there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026
1356061949
Legal name
Oak Tree Orthopedics INC
Entity
Type 2 · organization
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
Practice location
800 MAGNOLIA AVE STE 102, Corona, CA 92879
Phone
657-235-9355
Mailing address
Orange, CA
Enumerated
Sep 1, 2022
Record updated
Apr 3, 2024
Authorized official
Owner (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

2 clinicians CMS lists with Oak Tree Orthopedics in Corona

  1. Nasser Heyrani, MDOrthopaedic Surgery Physician1730523945
  2. Graeme Matthewson, MDSports Medicine (Orthopaedic Surgery) Physician1518578772

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

Checking an organization

  1. Confirm the business with the California secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

All taxonomies on this record

  • 207X00000X Orthopaedic Surgery Physician
  • 207XX0004X Orthopaedic Foot and Ankle Surgery Physician

Common questions

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.