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

Mrs. Margaret Geertsen, ACNP

Individual provider Acute Care Nurse Practitioner · NPI 1154932051

Mrs. Margaret Geertsen, ACNP is a Nurse Practitioner in Gilbert, Arizona. Qualified in 2010, 16 years ago. Practices with Banner Cancer Center Specialists LLC, a 338-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
16
Licensed in
AZ
In the registry since
2020
What do these letters mean?
ACNP — Acute Care Nurse Practitioner
A nurse practitioner who treats acutely ill patients, usually in hospital.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2946 E Banner Gateway Dr
Gilbert, AZ 85234
Phone: (480) 256-6444
Fax: (480) 256-3359
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

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 246270 (AZ)

Record details

NPI number1154932051
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACNP
Sole proprietorNo
NPI enumeratedAugust 13, 2020
Last updated in NPPESAugust 14, 2025
Certification dateFebruary 6, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Banner Cancer Center Specialists Llc — 338 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Gilbert