DR. MARILYN M. DERIDDER APRN
NPI 1548748858
Nurse Practitioner - Acute Care in Anaheim, CA
About Dr. Marilyn M. Deridder Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARILYN M. DERIDDER APRN (NPI 1548748858) is an individual acute care provider in Anaheim, California, licensed in California (MD5036175) and active in the NPI registry since July 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses 2
Group Practice 1
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
Dr. Marilyn M. Deridder Aprn 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 Marilyn Deridder reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Anaheim, CA 92801
- Reassigned Medicare billing, California enrollment
- 96 clinicians in this Medicare group
Riverside, CA 92505
- Reassigned Medicare billing, California enrollment
- 114 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
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 92801 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.
ANAHEIM, CA 92801
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 Marilyn Deridder's NPI number?
The NPI number for Marilyn Deridder is 1548748858. It was assigned to this individual provider in the NPPES registry on July 30, 2018.
Where is Marilyn Deridder located?
Marilyn Deridder practices at 1211 W La Palma Ave Ste 404, Anaheim, CA 92801. The listed phone number is (714) 772-8282.
What is Marilyn Deridder's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Marilyn Deridder enrolled in Medicare?
Yes. Marilyn Deridder 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 Marilyn Deridder's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marilyn Deridder reassigns Medicare benefits to 2 organizations: Chest And Critical Care Consultants A Medical Group (Anaheim, CA) and El-Bershawi Medical Corp (Riverside, 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 Marilyn Deridder'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 Marilyn Deridder was last updated on January 4, 2023. 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. Marilyn M. Deridder, APRN · NPI 1548748858
Acute Care physician in Anaheim, California. Individual provider, active in the CMS NPPES registry since July 30, 2018.
## Identity
- **NPI:** 1548748858 (Entity type: Individual)
- **Enumerated:** July 30, 2018
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** MD5036175 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1211 W LA PALMA AVE STE 404, Anaheim, CA 92801-2806
- **Phone:** (714) 772-8282 · **Fax:** (714) 772-6493
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Chest And Critical Care Consultants A Medical Group (NPI 1598852717, Anaheim, CA); El-Bershawi Medical Corp (NPI 1386813103, Riverside, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** January 4, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1548748858) · Data from the CMS NPPES public registry.