DR. MAHSA NASHID MD
NPI 1558701102
Family Medicine in Orange, CA
About Dr. Mahsa Nashid Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MAHSA NASHID MD (NPI 1558701102) is an individual family medicine provider in Orange, California, licensed in California (A146094) and active in the NPI registry since June 2013. She is enrolled in Medicare PECOS, maintains a secondary practice location in Smithtown, and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses 2
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 and accepts Medicare assignment
Dr. Mahsa Nashid Md 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
6Medicare enrollment records show Mahsa Nashid reassigns Medicare billing to 6 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
- 250 clinicians in this Medicare group
Wildomar, CA 92595
- Reassigned Medicare billing, California enrollment
- 69 clinicians in this Medicare group
San Bernardino, CA 92404
- Reassigned Medicare billing, California enrollment
- 1,216 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 clinicians in this Medicare group
Mountain View, CA 94040
- Reassigned Medicare billing, California enrollment
- 217 clinicians in this Medicare group
Lindenhurst, NY 11757
- Reassigned Medicare billing, New York enrollment
- 348 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 5
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 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.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Mahsa Nashid's NPI number?
The NPI number for Mahsa Nashid is 1558701102. It was assigned to this individual provider in the NPPES registry on June 27, 2013.
Where is Mahsa Nashid located?
Mahsa Nashid practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-8888.
What is Mahsa Nashid's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Mahsa Nashid enrolled in Medicare?
Yes. Mahsa Nashid 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 Mahsa Nashid's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mahsa Nashid reassigns Medicare benefits to 6 organizations: The Regents Of The University Of California-Irvine (Orange, CA), Acute Care Associates Of California PC (Wildomar, CA), Inpatient Specialists Of California, PC (San Bernardino, CA), Hospitalist Medicine Physicians Of California, Inc (Apple Valley, CA), Quantum Bay Area Hospitalist Medical Group Inc (Mountain View, CA) and 1 more organization, listed in the Medicare section above. 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 Mahsa Nashid'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 Mahsa Nashid was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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. Mahsa Nashid, MD · NPI 1558701102
Family Medicine physician in Orange, California. Individual provider, active in the CMS NPPES registry since June 27, 2013.
## Identity
- **NPI:** 1558701102 (Entity type: Individual)
- **Enumerated:** June 27, 2013
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A146094 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868-3201
- **Phone:** (714) 456-8888
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): The Regents Of The University Of California-Irvine (NPI 1154479723, Orange, CA); Acute Care Associates Of California PC (NPI 1194588392, Wildomar, CA); Inpatient Specialists Of California, PC (NPI 1952792475, San Bernardino, CA); Hospitalist Medicine Physicians Of California, Inc (NPI 1184663965, Apple Valley, CA); Quantum Bay Area Hospitalist Medical Group Inc (NPI 1902279656, Mountain View, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** July 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1558701102) · Data from the CMS NPPES public registry.