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

Denni Fitzsimmons, DO

Individual provider Family Medicine Physician · NPI 1457734600

Denni Fitzsimmons, DO is a Family Practice in Clive, Iowa. Qualified in 2015, 11 years ago. Practices with Mercy Clinics Inc, a 442-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Iowa and Texas.

Years since qualifying
11
Licensed in
IA, TX
In the registry since
2015
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

1601 NW 114th St Ste 255
Clive, IA 50325-7036
Phone: (515) 461-9780
Fax: (515) 461-9779
Show map & directions

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

Additional practice locations (2)

  • 5837 Winwood Dr, Johnston, IA 50131-1651 — (515) 643-4915
  • 697 Louisiana Rd, Dyess Afb, TX 79607-1141 — (325) 696-4677

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence DO04946 (IA)
Family Medicine Physician Taxonomy 207Q00000X · Licence S6394 (TX)

Record details

NPI number1457734600
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 7, 2015
Last updated in NPPESFebruary 3, 2026
Certification dateFebruary 3, 2026
Mailing addressPo Box 674721, Dallas, TX 75267-4721

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Mercy Clinics Inc — 442 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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