Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Kiarash Casey Mashayek, MD, MS

Individual provider Surgical Oncology Physician · NPI 1437513512

Dr. Kiarash Casey Mashayek, MD, MS is a Surgical Oncology in Fargo, North Dakota. Qualified in 2011, 15 years ago. Practices with Sanford Medical Center Fargo, a 1,212-clinician group, works from 5 locations, accepts Medicare assignment and offers telehealth. Licensed in North Dakota and Texas.

Years since qualifying
15
Licensed in
ND, TX
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Practice location Address checks out

737 Broadway Desk 36 Rt 1151
Fargo, ND 58122-0001
Phone: (701) 234-2251
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 500 W Hospital Rd Ofc, French Camp, CA 95231-9693 — (209) 468-6620
  • 101 The City Dr S Bldg 29, Orange, CA 92868-3201 — (714) 880-7812
  • 1000 W Carson St, Torrance, CA 90502-2004 — (310) 222-2345
  • 5323 Harry Hines Blvd, Dallas, TX 75390-9693 — (858) 859-5696

Specialties & licences

Surgical Oncology Physician (primary) Taxonomy 2086X0206X · Licence 21603 (ND)
Surgical Oncology Physician Taxonomy 2086X0206X · Licence T1770 (TX)

Record details

NPI number1437513512
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MS
Sole proprietorNo
NPI enumeratedApril 5, 2016
Last updated in NPPESMay 22, 2026
Certification dateMay 22, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtySURGICAL ONCOLOGY
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Sanford Medical Center Fargo — 1212 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

Other providers in Fargo