SEPIDEH MADAHIAN
NPI 1861997256
Pathology - Anatomic Pathology in Orange, CA
About Sepideh Madahian NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SEPIDEH MADAHIAN (NPI 1861997256) is an individual anatomic pathology provider in Orange, California, licensed in California (A175575) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Meriter, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Accepted Insurance
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
Sepideh Madahian 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 Sepideh Madahian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Middleton, WI 53562
- Reassigned Medicare billing, Wisconsin enrollment
- 2,832 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Unitypoint Health - Meriter
Acute Care Hospitals · Madison, WIUniversity Of Wi Hospitals & Clinics Authority
Acute Care Hospitals · Madison, WIPhysician 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 Sepideh Madahian's NPI number?
The NPI number for Sepideh Madahian is 1861997256. It was assigned to this individual provider in the NPPES registry on March 27, 2018.
Where is Sepideh Madahian located?
Sepideh Madahian practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (949) 824-6574.
What is Sepideh Madahian's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology, with taxonomy code 207ZP0101X.
Is Sepideh Madahian enrolled in Medicare?
Yes. Sepideh Madahian 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 Sepideh Madahian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sepideh Madahian reassigns Medicare benefits to University Of Wisconsin Medical Foundation, Inc (Middleton, WI). 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 Sepideh Madahian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sepideh Madahian accept?
Health plans from Group Health Cooperative-SCW list Sepideh Madahian 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.
Is Sepideh Madahian affiliated with any hospitals?
According to CMS data, Sepideh Madahian is affiliated with Unitypoint Health - Meriter and University Of Wi Hospitals & Clinics Authority.
When was this NPI record last updated?
The NPPES record for Sepideh Madahian was last updated on October 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days 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.
# Sepideh Madahian · NPI 1861997256
Anatomic Pathology physician in Orange, California. Individual provider, active in the CMS NPPES registry since March 27, 2018.
## Identity
- **NPI:** 1861997256 (Entity type: Individual)
- **Enumerated:** March 27, 2018
- **Primary specialty:** Pathology - Anatomic Pathology · taxonomy 207ZP0101X
- **State license:** A175575 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868-3201
- **Phone:** (949) 824-6574
## 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:** University Of Wisconsin Medical Foundation, Inc (NPI 1598784555, Middleton, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Massachusetts Medical School, class of 2007
## Record status
- **NPPES last updated:** October 14, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1861997256) · Data from the CMS NPPES public registry.