ISOBEL YCASAS SANTOS M.D.
NPI 1316306574
Surgery - Surgery of the Hand in Fresno, CA
About Isobel Ycasas Santos M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ISOBEL YCASAS SANTOS M.D. (NPI 1316306574) is an individual surgery of the hand provider in Fresno, California, licensed in California (A191342) and active in the NPI registry since February 2016. She is enrolled in Medicare PECOS and is a graduate of University Of Vermont College Of Medicine (2017).
NPPES Registry Identity
Specialties & Licenses
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
Isobel Ycasas Santos 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 Reassignments
2Medicare enrollment records show Isobel Santos reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fresno, CA 93720
- Reassigned Medicare billing, California enrollment
- 4 clinicians in this Medicare group
Lancaster, CA 93534
- Reassigned Medicare billing, California enrollment
- 13,921 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 93720 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 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FRESNO, CA 93720
FRESNO, CA 93720
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 Isobel Santos's NPI number?
The NPI number for Isobel Santos is 1316306574. It was assigned to this individual provider in the NPPES registry on February 16, 2016.
Where is Isobel Santos located?
Isobel Santos practices at 2139 E Beechwood Ave, Fresno, CA 93720. The listed phone number is (559) 322-6600.
What is Isobel Santos's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgery of the Hand, with taxonomy code 2086S0105X.
Is Isobel Santos enrolled in Medicare?
Yes. Isobel Santos 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 Isobel Santos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Isobel Santos reassigns Medicare benefits to 2 organizations: Randi A Galli MD, Inc (Fresno, CA) and Southern California Permanente Medical Group (Lancaster, CA). 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 Isobel Santos'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 Isobel Santos was last updated on October 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.