ROBERT JOSEPH SONNENBERG PT, ATC
NPI 1255637013
Physical Therapist in Stafford, VA
About Robert Joseph Sonnenberg Pt, Atc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT JOSEPH SONNENBERG PT, ATC (NPI 1255637013) is an individual physical therapist in Stafford, Virginia, licensed in Virginia (2305209356) and active in the NPI registry since January 2011. He is a graduate of Other (2009).
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.
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
Robert Joseph Sonnenberg Pt, Atc 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 Reassignments
2Medicare enrollment records show Robert Sonnenberg reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fredericksburg, VA 22401
- Reassigned Medicare billing, Virginia enrollment
- 547 clinicians in this Medicare group
Fredericksburg, VA 22401
- Reassigned Medicare billing, Virginia enrollment
- 133 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22554 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STAFFORD, VA 22554
STAFFORD, VA 22554
STAFFORD, VA 22554
STAFFORD, VA 22554
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 Robert Sonnenberg's NPI number?
The NPI number for Robert Sonnenberg is 1255637013. It was assigned to this individual provider in the NPPES registry on January 26, 2011.
Where is Robert Sonnenberg located?
Robert Sonnenberg practices at 2777 Jefferson Davis Hwy, Stafford, VA 22554. The listed phone number is (540) 412-8998.
What is Robert Sonnenberg's specialty?
The primary specialty registered for this NPI is Physical Therapist with taxonomy code 225100000X.
Is Robert Sonnenberg enrolled in Medicare?
Yes. Robert Sonnenberg 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 organizations bill Medicare for Robert Sonnenberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Sonnenberg reassigns Medicare benefits to 2 organizations: Mary Washington Healthcare Physicians (Fredericksburg, VA) and Mary Washington Hospital, Inc. (Fredericksburg, VA). Each 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 Robert Sonnenberg'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 Robert Sonnenberg was last updated on June 12, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.