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

Trisha Lynn Thoma, MD

Individual provider Plastic Surgery within the Head & Neck (Otolaryngology) Physician · NPI 1770849317

Trisha Lynn Thoma, MD is an Otolaryngology in Mason City, Iowa. Graduated from University of Iowa, Rj & L Carver College of Medicine in 2012, 14 years ago. Practices with North Iowa Mercy Clinics, a 300-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
14
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
IA
In the registry since
2012
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

250 S Crescent Dr
Mason City, IA 50401-2926
Phone: (641) 494-5380
Fax: (641) 494-5381
Show map & directions

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

Additional practice locations (1)

  • 1501 Kings Hwy, Shreveport, LA 71103-4228 — (318) 813-2690

Specialties & licences

Plastic Surgery within the Head & Neck (Otolaryngology) Physician (primary) Taxonomy 207YX0007X · Licence MD44577 (IA)

Record details

NPI number1770849317
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 9, 2012
Last updated in NPPESSeptember 9, 2025
Certification dateSeptember 9, 2025

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice North Iowa Mercy Clinics — 300 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare