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

Mrs. Tammy S. Mackiewicz, ARNP

Individual provider Nurse Practitioner · NPI 1790054252

Mrs. Tammy S. Mackiewicz, ARNP is a Nurse Practitioner in Spring Hill, Florida. Qualified in 2011, 15 years ago. Practices with Florida Cancer Specialists and Research Institute, LLC, a 460-clinician group and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
15
Licensed in
FL
In the registry since
2011
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

7154 Medical Center Dr
Spring Hill, FL 34608-1329
Phone: (352) 596-1926
Fax: (352) 597-2154
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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 ARNP3356632 (FL)

Record details

NPI number1790054252
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedDecember 29, 2011
Last updated in NPPESJuly 14, 2015

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Florida Cancer Specialists And Research Institute, Llc — 460 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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