NATHALIE G KASSIS PT
NPI 1851400402
Physical Therapist in Fairfax Station, VA
About Nathalie G Kassis Pt NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHALIE G KASSIS PT (NPI 1851400402) is an individual physical therapist in Fairfax Station, Virginia and active in the NPI registry since August 2006. She is a graduate of Other (1996).
NPPES Registry Identity
Specialties & Licenses
- Diagnose and manage movement dysfunction and enhance physical and functional abilities.
- Restore, maintain, and promote not only optimal physical function but optimal wellness and fitness and optimal quality of life as it relates to movement and health.
- Prevent the onset, symptoms, and progression of impairments, functional limitations, and disabilities that may result from diseases, disorders, conditions, or injuries.
- Treat conditions of the musculoskeletal, neuromuscular, cardiovascular, pulmonary, and/or integumentary systems.
- Address the negative effects attributable to unique personal and environmental factors as they relate to human performance.
Other Identifiers 1
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
Nathalie G Kassis Pt 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 Nathalie Kassis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Glen Allen, VA 23059
- Reassigned Medicare billing, District of Columbia enrollment
- 11 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 7
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22039 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
Reported Quality Measures
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FAIRFAX STATION, VA 22039
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 Nathalie Kassis's NPI number?
The NPI number for Nathalie Kassis is 1851400402. It was assigned to this individual provider in the NPPES registry on August 29, 2006.
Where is Nathalie Kassis located?
Nathalie Kassis practices at 5618 Ox Rd Suite H, Fairfax Station, VA 22039. The listed phone number is (703) 426-4949.
What is Nathalie Kassis's specialty?
The primary specialty registered for this NPI is Physical Therapist with taxonomy code 225100000X.
Is Nathalie Kassis enrolled in Medicare?
Yes. Nathalie Kassis 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 Nathalie Kassis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathalie Kassis reassigns Medicare benefits to Progress Rehabilitation Network LLC (Glen Allen, VA). 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 Nathalie Kassis'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 Nathalie Kassis was last updated on November 19, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Nathalie G Kassis, PT · NPI 1851400402
Physical Therapist provider in Fairfax Station, Virginia. Individual provider, active in the CMS NPPES registry since August 29, 2006.
## Identity
- **NPI:** 1851400402 (Entity type: Individual)
- **Enumerated:** August 29, 2006
- **Primary specialty:** Physical Therapist · taxonomy 225100000X
- **Sole proprietor:** No
## Practice location
- **Address:** 5618 OX RD, SUITE H, Fairfax Station, VA 22039-1018
- **Phone:** (703) 426-4949
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Progress Rehabilitation Network LLC (NPI 1760434948, Glen Allen, VA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1996
## Record status
- **NPPES last updated:** November 19, 2007
- **Other identifiers:** Other 2305201771 (VA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1851400402) · Data from the CMS NPPES public registry.