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

Ida Marilou Houston, ARNP

Individual provider Internal Medicine Physician · NPI 1558411223

Ida Marilou Houston, ARNP is a Nurse Practitioner in Clearwater, Florida. Graduated from University of South Florida College of Medicine in 1995, 31 years ago. Practices with Optumcare Florida, LLC, a 267-clinician group and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
31
Trained at
University of South Florida College of Medicine
Licensed in
FL
In the registry since
2007
Specialties on file
3
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

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Practice location Address checks out

2730 N McMullen Booth Rd Ste 201
Clearwater, FL 33761-3302
Phone: (727) 725-5224
Fax: (727) 799-2183
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence ARNP1512312 (FL)
Internal Medicine Physician Taxonomy 207R00000X · Licence ARNP1512312 (FL)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence ARNP 1512312 (FL)

Record details

NPI number1558411223
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedJanuary 12, 2007
Last updated in NPPESAugust 17, 2021
Certification dateAugust 17, 2021

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF SOUTH FLORIDA COLLEGE OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Optumcare Florida, Llc — 267 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients17
Services billed 74 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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.

Colleagues at Optumcare Florida, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 267 clinicians in the practice; 12 are shown here.

Other providers in Clearwater