DENNI FITZSIMMONS (DO) – Family Medicine Physician, NPI 1457734600
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,656 FAMILY PRACTICE in IA
Provider Addresses for DENNI FITZSIMMONS (DO)
5837 Winwood Dr
Johnston, IA 501311651
Phone: (515) 643-4915
Fax: (515) 643-8804
Type: Location
1111 6TH AVE
DES MOINES, IA 503142613
Phone: (515) 643-4610
Fax: (515) 643-4662
Type: Mailing
697 Louisiana Rd
Dyess AFB, TX 796071141
Phone: (325) 696-4677
Type: Location
PO BOX 674721
DALLAS, TX 752674721
Phone: (515) 643-2519
Fax: (515) 461-9779
Type: Mailing
1601 NW 114TH ST STE 255
CLIVE, IA 503257036
Phone: (515) 461-9780
Fax: (515) 461-9779
Type: Location
PO BOX 1475
DES MOINES, IA 503051475
Phone: (515) 222-7000
Fax: (515) 222-7037
Type: Mailing
1601 NW 114TH ST
CLIVE, IA 503257007
Phone: (515) 222-7000
Fax: (515) 222-7037
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $110.
Total Amount is formed as General ($110) + Research ($0) + Ownership ($0) = $110.
Last reported payment date: 2024-11-05 • Largest payer in this snapshot: Phathom Pharmaceuticals, Inc. ($94).
Total Amount
$110
General + Research + Ownership
Payments
2
Total payment records
General Amount
$110
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Phathom Pharmaceuticals, Inc. | $94 |
| Exact Sciences Corporation | $16 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2017-03-07
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20170307001097 | I | Family Practice | IA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 50131)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | IA | |
| Physician Assistant | IA | |
| Nurse Practitioner | IA | |
| Nurse Practitioner | IA | |
| Nurse Practitioner | IA | |
| Nurse Practitioner | IA | |
| Physician Assistant | IA | |
| Nurse Practitioner | IA | |
| Physician Assistant | IA | |
| Physician Assistant | IA |
Reviews
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