DR. MARIELLE MAE BEAMESDERFER MD
NPI 1083173041
Pediatrics in Orange, CA
About Dr. Marielle Mae Beamesderfer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARIELLE MAE BEAMESDERFER MD (NPI 1083173041) is an individual pediatrics provider in Orange, California, licensed in California (A179591) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS and maintains a secondary practice location in Orange.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Marielle Mae Beamesderfer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Marielle Beamesderfer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 143 clinicians in this Medicare group
Santa Ana, CA 92701
- Reassigned Medicare billing, California enrollment
- 255 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 92868 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.
ORANGE, CA 92868
ORANGE, CA 92868
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 Marielle Beamesderfer's NPI number?
The NPI number for Marielle Beamesderfer is 1083173041. It was assigned to this individual provider in the NPPES registry on March 18, 2019.
Where is Marielle Beamesderfer located?
Marielle Beamesderfer practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 880-7812.
What is Marielle Beamesderfer's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Marielle Beamesderfer enrolled in Medicare?
Yes. Marielle Beamesderfer is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Marielle Beamesderfer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marielle Beamesderfer reassigns Medicare benefits to 2 organizations: Uc Regents Uci Dept Of Pediatrics (Orange, CA) and University Of California Irvine (Santa Ana, 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 Marielle Beamesderfer'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 Marielle Beamesderfer was last updated on November 1, 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.
# Dr. Marielle Mae Beamesderfer, MD · NPI 1083173041
Pediatrics physician in Orange, California. Individual provider, active in the CMS NPPES registry since March 18, 2019.
## Identity
- **NPI:** 1083173041 (Entity type: Individual)
- **Enumerated:** March 18, 2019
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** A179591 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868-3201
- **Phone:** (714) 880-7812
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Uc Regents Uci Dept Of Pediatrics (NPI 1235187311, Orange, CA); University Of California Irvine (NPI 1851325906, Santa Ana, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 1, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1083173041) · Data from the CMS NPPES public registry.