DR. KIARASH CASEY MASHAYEK M.D,M.S
NPI 1437513512
Surgery - Surgical Oncology in Fargo, ND
About Dr. Kiarash Casey Mashayek M.d,m.s NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KIARASH CASEY MASHAYEK M.D,M.S (NPI 1437513512) is an individual surgical oncology provider in Fargo, North Dakota, licensed in North Dakota (21603) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS, is affiliated with Trinity Hospitals, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Kiarash Casey Mashayek M.d,m.s 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.
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Trinity Hospitals
Acute Care Hospitals · Minot, NDSanford Medical Center Fargo
Acute Care Hospitals · Fargo, NDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 58122 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Kiarash Mashayek's NPI number?
The NPI number for Kiarash Mashayek is 1437513512. It was assigned to this individual provider in the NPPES registry on April 5, 2016.
Where is Kiarash Mashayek located?
Kiarash Mashayek practices at 737 Broadway Desk 36, Rt 1151, Fargo, ND 58122. The listed phone number is (701) 234-2251.
What is Kiarash Mashayek's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.
Is Kiarash Mashayek enrolled in Medicare?
Yes. Kiarash Mashayek 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.
What insurance does Kiarash Mashayek accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross Blue Shield of North Dakota, Blue Cross and Blue Shield of Texas, Medica and Sanford Health Plan list Kiarash Mashayek 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 Kiarash Mashayek affiliated with any hospitals?
According to CMS data, Kiarash Mashayek is affiliated with Trinity Hospitals and Sanford Medical Center Fargo.
When was this NPI record last updated?
The NPPES record for Kiarash Mashayek was last updated on May 22, 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.
