Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Timothy C. Dykstra, MD

Individual provider Emergency Medicine Physician · NPI 1043206113

Timothy C. Dykstra, MD practises Emergency Medicine in Centerville, Iowa. Graduated from Sanford School of Medicine of University of South Dakota in 1995, 31 years ago. Practices with Mercy Clinics Inc, a 442-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
31
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
IA
In the registry since
2005
Specialties on file
4
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

1 Saint Joseph Dr
Centerville, IA 52544-9017
Phone: (641) 437-4111
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD-31362 (IA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 31362 (IA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence MD-31362 (IA)
Family Medicine Physician Taxonomy 207Q00000X · Licence 31362 (IA)

Record details

NPI number1043206113
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 23, 2005
Last updated in NPPESDecember 21, 2025
Certification dateDecember 21, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 1995 (31 years in practice)
Group practice Mercy Clinics Inc — 442 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients372
Services billed 599 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mercy Clinics Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 442 clinicians in the practice; 12 are shown here.