JOHN MARENKOVIC III
NPI 1013891688
Physical Therapist in Alturas, CA
About John Marenkovic Iii NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN MARENKOVIC III (NPI 1013891688) is an individual physical therapist in Alturas, California, licensed in California (308101) and active in the NPI registry since August 2025. He is a graduate of Other (2025).
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
John Marenkovic Iii 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 John Marenkovic reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Larkspur, CA 94939
- Reassigned Medicare billing, California enrollment
- 18 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 96101 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 John Marenkovic's NPI number?
The NPI number for John Marenkovic is 1013891688. It was assigned to this individual provider in the NPPES registry on August 5, 2025.
Where is John Marenkovic located?
John Marenkovic practices at 120 S Main St, Alturas, CA 96101. The listed phone number is (530) 708-8860.
What is John Marenkovic's specialty?
The primary specialty registered for this NPI is Physical Therapist with taxonomy code 225100000X.
Is John Marenkovic enrolled in Medicare?
Yes. John Marenkovic 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 John Marenkovic's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Marenkovic reassigns Medicare benefits to Active Marin Physical Therapy Inc (Larkspur, 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 John Marenkovic'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 John Marenkovic was last updated on August 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.