Denni Fitzsimmons, DO
NPI 1457734600 · Family Medicine Physician · Clive, IA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Denni Fitzsimmons, DO is a Family Medicine Physician provider in Clive, IA (NPI 1457734600).
Provider details
- NPI number
- 1457734600
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- S6394 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
19 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 19 | $72 |
Typical Medicare-allowed amounts for these services range $72–$72 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$110 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 5837 Winwood DrJohnston, IA 50131-1651Phone: (515) 643-4915Fax: (515) 643-8804
- 697 Louisiana RdDyess Afb, TX 79607-1141Phone: (325) 696-4677
Registry dates
- Enumerated
- 2015-07-07
- Last updated
- 2026-02-03
- Certified
- 2026-02-03
Frequently asked questions
- What is Denni Fitzsimmons's NPI number?
- Denni Fitzsimmons's National Provider Identifier (NPI) is 1457734600, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Denni Fitzsimmons's specialty?
- Denni Fitzsimmons is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Denni Fitzsimmons located?
- Denni Fitzsimmons's practice location on file with NPPES is 1601 Nw 114th St Ste 255, Clive, IA 50325-7036.
- What is Denni Fitzsimmons's phone number?
- The practice phone number listed in the NPPES registry for Denni Fitzsimmons is (515) 461-9780.
- Does Denni Fitzsimmons accept Medicare?
- Denni Fitzsimmons is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Denni Fitzsimmons's NPI active?
- Yes — Denni Fitzsimmons's NPI (1457734600) is active in the NPPES registry as of the last update on 2026-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.