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

Debra Shannon Witthar, BSN, MSN, DNP

Individual provider Gerontology Nurse Practitioner · NPI 1760090427

Debra Shannon Witthar, BSN, MSN, DNP is a Gerontology Nurse Practitioner in Sun City, Arizona. Licensed in Arizona. Registered with an NPI since 2020.

Licensed in
AZ
In the registry since
2020
What do these letters mean?
BSN — Bachelor of Science in Nursing
A four-year nursing degree.
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
DNP — Doctor of Nursing Practice
The highest clinical degree in nursing.

See every abbreviation used in this directory →

Practice location Address checks out

10515 W Santa Fe Dr Bldg B
Sun City, AZ 85351-3020
Phone: (623) 832-6530
Show map & directions

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

Specialties & licences

Gerontology Nurse Practitioner (primary) Taxonomy 363LG0600X · Licence 243265 (AZ)

Record details

NPI number1760090427
Entity typeIndividual (Type 1)
GenderFemale
Credentials BSN , MSN , DNP
Sole proprietorNo
NPI enumeratedJuly 20, 2020
Last updated in NPPESJuly 20, 2020
Certification dateJuly 20, 2020

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