Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Diane Gellermann, ARNP

Individual provider Nurse Practitioner · NPI 1265891816

Diane Gellermann, ARNP is a Nurse Practitioner in Port Orange, Florida. Qualified in 2015, 11 years ago. Practices with Halifax Healthcare Systems Inc, a 339-clinician group and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
11
Licensed in
FL
In the registry since
2016
What do these letters mean?
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

4645 Clyde Morris Blvd Ste 408
Port Orange, FL 32129-3005
Phone: (386) 295-6601
Fax: (386) 492-1174
Show map & directions

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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 9230757 (FL)

Record details

NPI number1265891816
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorYes
NPI enumeratedFebruary 10, 2016
Last updated in NPPESMarch 29, 2021
Certification dateMarch 29, 2021

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Halifax Healthcare Systems Inc — 339 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 patients41
Services billed 166 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Halifax Healthcare Systems Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 339 clinicians in the practice; 12 are shown here.

Other providers in Port Orange