MARISSA RUIZ
NPI 1700598869
Physical Therapist in San Anselmo, CA
About Marissa Ruiz NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARISSA RUIZ (NPI 1700598869) is an individual physical therapist in San Anselmo, California, licensed in California (303289) and active in the NPI registry since December 2022.
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.
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Marissa Ruiz is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Marissa Ruiz reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Anselmo, CA 94960
- Reassigned Medicare billing, California enrollment
- 27 clinicians in this Medicare group
Southlake, TX 76092
- Reassigned Medicare billing, Texas enrollment
- 474 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,554 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.
Other Providers at the Same Location NPPES 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN ANSELMO, CA 94960
SAN ANSELMO, CA 94960
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 Marissa Ruiz's NPI number?
The NPI number for Marissa Ruiz is 1700598869. It was assigned to this individual provider in the NPPES registry on December 20, 2022.
Where is Marissa Ruiz located?
Marissa Ruiz practices at 220 Greenfield Ave, San Anselmo, CA 94960. The listed phone number is (415) 213-2233.
What is Marissa Ruiz's specialty?
The primary specialty registered for this NPI is Physical Therapist with taxonomy code 225100000X.
Is Marissa Ruiz enrolled in Medicare?
Yes. Marissa Ruiz is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Marissa Ruiz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Ruiz reassigns Medicare benefits to 3 organizations: Sport & Spine Therapy Of Marin Inc (San Anselmo, CA), Texas Luna Care Physical Therapy LLC (Southlake, TX) and Baylor College Of Medicine (Houston, TX). 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 Marissa Ruiz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marissa Ruiz accept?
Health plans from Blue Cross and Blue Shield of Texas and Oscar Insurance Company list Marissa Ruiz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Marissa Ruiz was last updated on December 20, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.