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

Dr. Margaret M Mack, PHD, MA, APRNBC

Individual provider Adult Psychiatric/Mental Health Clinical Nurse Specialist · NPI 1962618686

Dr. Margaret M Mack, PHD, MA, APRNBC is a Certified Clinical Nurse Specialist (Cns) in Wilmington, Delaware. Qualified in 1981, 45 years ago. Practices with Delaware Psychiatry, LLC, a 3-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Delaware.

Years since qualifying
45
Licensed in
DE
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
MA — Master of Arts
A graduate arts degree.

See every abbreviation used in this directory →

Practice location Address checks out

10 Guyenne Rd
Wilmington, DE 19807-1414
Phone: (302) 530-0358
Show map & directions

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

Specialties & licences

Adult Psychiatric/Mental Health Clinical Nurse Specialist (primary) Taxonomy 364SP0809X · Licence LE-0000123 (DE)

Record details

NPI number1962618686
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD , MA , APRNBC
Sole proprietorYes
NPI enumeratedMay 16, 2007
Last updated in NPPESJune 29, 2021
Certification dateJune 29, 2021

Medicare enrollment

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

Medicare specialtyCERTIFIED CLINICAL NURSE SPECIALIST (CNS)
Medical schoolOTHER
Graduated 1981 (45 years in practice)
Group practice Delaware Psychiatry, Llc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Wilmington