STEPHANIE SEBASTIANI LARSON
NPI 1124657218
Obstetrics & Gynecology in Loma Linda, CA
About Stephanie Sebastiani Larson NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHANIE SEBASTIANI LARSON (NPI 1124657218) is an individual obstetrics & gynecology provider in Loma Linda, California, licensed in California (A187488) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (2020).
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
Stephanie Sebastiani Larson 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 Stephanie Larson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Loma Linda, CA 92354
- Reassigned Medicare billing, California enrollment
- 2,584 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 92354 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOMA LINDA, CA 92354
LOMA LINDA, CA 92354
LOMA LINDA, CA 92354
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 Stephanie Larson's NPI number?
The NPI number for Stephanie Larson is 1124657218. It was assigned to this individual provider in the NPPES registry on April 2, 2020.
Where is Stephanie Larson located?
Stephanie Larson practices at 11234 Anderson St, Loma Linda, CA 92354. The listed phone number is (909) 651-5510.
What is Stephanie Larson's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Stephanie Larson enrolled in Medicare?
Yes. Stephanie Larson 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 Stephanie Larson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Larson reassigns Medicare benefits to Faculty Physicians And Surgeons Of Llusm (Loma Linda, 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 Stephanie Larson'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 Stephanie Larson was last updated on September 16, 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.
# Stephanie Sebastiani Larson · NPI 1124657218
Obstetrics & Gynecology physician in Loma Linda, California. Individual provider, active in the CMS NPPES registry since April 2, 2020.
## Identity
- **NPI:** 1124657218 (Entity type: Individual)
- **Enumerated:** April 2, 2020
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** A187488 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 11234 ANDERSON ST, Loma Linda, CA 92354-2804
- **Phone:** (909) 651-5510
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Faculty Physicians And Surgeons Of Llusm (NPI 1245605781, Loma Linda, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loma Linda University School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** September 16, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1124657218) · Data from the CMS NPPES public registry.