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

Ellen Bryn Brennan, NP

Individual provider Primary Care Nurse Practitioner · NPI 1821729039

Ellen Bryn Brennan, NP is a Nurse Practitioner in Wilmington, Delaware. Qualified in 2022, 4 years ago. Practices with Post Acute Specialists of Massachusetts PLLC, a 45-clinician group, works from 4 locations, accepts Medicare assignment and offers telehealth. Licensed in Delaware and Pennsylvania.

Years since qualifying
4
Licensed in
DE, PA
In the registry since
2022
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

405 Silverside Rd Ste 104
Wilmington, DE 19809-1768
Phone: (844) 365-7246
Fax: (302) 792-1372
Show map & directions

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

Additional practice locations (3)

  • 291 Carter Dr Ste A, Middletown, DE 19709-5845 — (844) 365-7246
  • 1197 Airport Rd Fl 2, Milford, DE 19963-6418 — (844) 365-2746
  • 3105 Limestone Rd Ste 300, Wilmington, DE 19808-2156 — (844) 365-7246

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence SP025575 (PA)
Primary Care Nurse Practitioner Taxonomy 363LP2300X · Licence LP-0010054 (DE)

Record details

NPI number1821729039
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJune 19, 2022
Last updated in NPPESSeptember 12, 2023
Certification dateSeptember 12, 2023
Mailing address291 Carter Dr Ste A, Middletown, DE 19709-5845

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Post Acute Specialists Of Massachusetts Pllc — 45 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations8 on file with Medicare

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