Denni Fitzsimmons, DO
Family Medicine Physician · Clive, IA
Denni Fitzsimmons, DO is a family medicine physician with a practice address in Clive, Iowa, and NPI 1457734600, issued on Jul 7, 2015. Check the license (Iowa DO04946, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Denni Fitzsimmons
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- DO04946 IA
S6394 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1601 NW 114TH St Ste 255, Clive, IA 50325
- Phone
- (515) 461-9780
- Enumerated
- Jul 7, 2015
- Record last updated
- Feb 3, 2026
- Fax
- (515) 461-9779
- Medicare enrollment
- Enrolled (PECOS I20170307001097); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,336 in Iowa → Look up another NPI →
Also registered at 1601 NW 114TH St Ste 255
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Hatchitt, DOFamily Medicine Physician1750487922
- Channing Johnson, ARNP, FNP-CFamily Nurse Practitioner1679308373
- Sherry Leitch, ARNP, FNP-BC, DNPNurse Practitioner1760204598
- Robin Westrum, ARNPNurse Practitioner1265971329
Verify Denni Fitzsimmons in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license DO04946Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average family medicine physician in 2024
54 Medicare Part D claims for 22 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $110.46
2 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Mercy Clinics IncIndianola, IA
- Mercyone UrgentcareClinton, IA
- Primary Health Care IncDes Moines, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Denni Fitzsimmons among 2,336 family medicine physician records in Iowa
Denni Fitzsimmons, DO is one of 2,336 family medicine physician records with a practice address in Iowa. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 73% of them.
- NPI issued2015 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2015 · median 2006 among the 1,367 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 family medicine physician records list a practice address in Clive
They are 17 of the 627 NPPES records with a practice address in Clive, and 2,336 family medicine physician records in Iowa.
All 2,336 in Iowa → Every provider in Clive → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kristi Blomberg, MDClive, IA 503251750392809
- Gary Bremen, DOClive, IA 503251689781676
- Lon Brewer, D.O.Clive, IA 503251326095399
- Stephen Eckstat, DOClive, IA 503251053322263
- Timothy Gerdis, DOClive, IA 503251679679831
- Marlene Gernes, DOClive, IA 503251952314171
- Robert Hatchitt, DOClive, IA 503251750487922
- Geethalakshmi Mani, MDClive, IA 503251861559551
Common questions
What is Denni Fitzsimmons, DO's NPI number?
Denni Fitzsimmons, DO's National Provider Identifier (NPI) is 1457734600, issued on Jul 7, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Denni Fitzsimmons, DO located?
The NPPES record lists a practice address at 1601 NW 114TH St Ste 255, Clive, IA, 50325. Phone: (515) 461-9780. Providers update this record themselves, so call before visiting.
How can I verify Denni Fitzsimmons, DO's license?
NPPES lists Iowa license number DO04946, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Denni Fitzsimmons, DO prescribe under Medicare Part D?
In 2024, Denni Fitzsimmons, DO had 54 Medicare Part D claims for 22 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.