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

Dr. Mary Theresa Izzo, PHD, ARNP

Individual provider Family Nurse Practitioner · NPI 1023145752

Dr. Mary Theresa Izzo, PHD, ARNP is a Nurse Practitioner in Deland, Florida. Qualified in 2004, 22 years ago. Practices with Ormond Medical Arts, a 38-clinician group and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
22
Licensed in
FL
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

See every abbreviation used in this directory →

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Practice location Address checks out

999 W Plymouth Ave
Deland, FL 32720-3134
Phone: (386) 740-7080
Fax: (386) 734-0821
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 0876802 (FL)

Record details

NPI number1023145752
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD , ARNP
Sole proprietorNo
NPI enumeratedFebruary 28, 2007
Last updated in NPPESApril 4, 2019

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Ormond Medical Arts — 38 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 patients357
Services billed 1,894 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $497 22 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Adventhealth Home Health Home health agency · Ormond Beach, FL · listed as Adventhealth Home Health and Hospice Inc
  • Adventhealth Deland Hospital · Deland, FL
  • Adventhealth Fish Memorial Hospital · Orange City, FL
  • Accentcare Home Health Of Daytona Home health agency · Ormond Beach, FL
  • Centerwell Home Health Home health agency · Daytona Beach, FL
  • Trilogy Home Healthcare Home health agency · Jacksonville, FL

Colleagues at Ormond Medical Arts

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 38 clinicians in the practice; 12 are shown here.

Other providers in Deland