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

Cynthia A Diefenbeck, CNS

Individual provider Clinical Nurse Specialist · NPI 1578750915

Cynthia A Diefenbeck, CNS is a Clinical Nurse Specialist in Newark, Delaware. Licensed in Delaware. Registered with an NPI since 2007.

Licensed in
DE
In the registry since
2007
Specialties on file
2
What do these letters mean?
CNS — Clinical Nurse Specialist
An advanced practice nurse specialising in a patient population or setting.

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Practice location Address checks out

910 S Chapel St # 102
Newark, DE 19713-3467
Phone: (302) 224-1400
Fax: (302) 224-1402
Show map & directions

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

Specialties & licences

Psychiatric/Mental Health Clinical Nurse Specialist (primary) Taxonomy 364SP0808X · Licence LE-0000143 (DE)
Clinical Nurse Specialist Taxonomy 364S00000X · Licence LE-0000143 (DE)

Record details

NPI number1578750915
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNS
Sole proprietorNo
NPI enumeratedOctober 1, 2007
Last updated in NPPESNovember 15, 2011

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