MARIAN FAM MD
NPI 1891291423
Family Medicine in Riverside, CA
About Marian Fam Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIAN FAM MD (NPI 1891291423) is an individual family medicine provider in Riverside, California, licensed in California (A174623) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Marian Fam Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Marian Fam reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Murrieta, CA 92563
- Reassigned Medicare billing, California enrollment
- 240 clinicians in this Medicare group
Cleveland, OH 44111
- Reassigned Medicare billing, Ohio enrollment
- 75 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 92505 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 2
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 Marian Fam's NPI number?
The NPI number for Marian Fam is 1891291423. It was assigned to this individual provider in the NPPES registry on April 3, 2018.
Where is Marian Fam located?
Marian Fam practices at 4244 Riverwalk Pkwy Ste 290, Riverside, CA 92505. The listed phone number is (951) 520-9392.
What is Marian Fam's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Marian Fam enrolled in Medicare?
Yes. Marian Fam is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Marian Fam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marian Fam reassigns Medicare benefits to 2 organizations: United Medical Doctors (Murrieta, CA) and Neighborhood Health Care Incorporated (Cleveland, OH). 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 Marian Fam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marian Fam accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource, MedMutual, Molina Healthcare and Oscar Insurance Corporation of Ohio and 1 other insurer list Marian Fam as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Marian Fam was last updated on March 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Marian Fam, MD · NPI 1891291423
Family Medicine physician in Riverside, California. Individual provider, active in the CMS NPPES registry since April 3, 2018.
## Identity
- **NPI:** 1891291423 (Entity type: Individual)
- **Enumerated:** April 3, 2018
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A174623 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4244 RIVERWALK PKWY STE 290, Riverside, CA 92505-8509
- **Phone:** (951) 520-9392
## 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): United Medical Doctors (NPI 1770559981, Murrieta, CA); Neighborhood Health Care Incorporated (NPI 1962831966, Cleveland, OH) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 23, 2022
---
Source: [NPI Profile](https://npiprofile.com/npi/1891291423) · Data from the CMS NPPES public registry.