DR. MARK JOHN GHILARDUCCI M.D.
NPI 1922063700
Orthopaedic Surgery - Sports Medicine in Oxnard, CA
About Dr. Mark John Ghilarducci M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK JOHN GHILARDUCCI M.D. (NPI 1922063700) is an individual sports medicine provider in Oxnard, California, licensed in California (G59002) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Ventura, and is a graduate of University Of Southern California Keck School Of Medicine (1985).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Mark John Ghilarducci M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Mark Ghilarducci reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Oxnard, CA 93030
- Reassigned Medicare billing, California enrollment
- 73 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 24
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OXNARD, CA 93030
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 Mark Ghilarducci's NPI number?
The NPI number for Mark Ghilarducci is 1922063700. It was assigned to this individual provider in the NPPES registry on April 18, 2006.
Where is Mark Ghilarducci located?
Mark Ghilarducci practices at 2221 Wankel Way, Oxnard, CA 93030. The listed phone number is (805) 988-9366.
What is Mark Ghilarducci's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Sports Medicine, with taxonomy code 207XX0005X.
Is Mark Ghilarducci enrolled in Medicare?
Yes. Mark Ghilarducci is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Mark Ghilarducci's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Ghilarducci reassigns Medicare benefits to Ventura Orthopedics Medical Group, Inc. (Oxnard, CA). The 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 Mark Ghilarducci's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mark Ghilarducci was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.