Ellen Bryn Brennan, NP
Nurse Practitioner (CMS) · Wilmington, DE
At a glance
405 Silverside Rd Ste 104, Wilmington, DE 19809-1768
NPPES record updated Sep 12, 2023. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
405 Silverside Rd Ste 104Wilmington, DE 19809-1768
Additional reported practice locations
1197 Airport Rd Fl 2Milford, DE 199636418
Phone: 8443652746
Fax: 3025033432 3105 Limestone Rd Ste 300
Wilmington, DE 198082156
Phone: 8443657246
Fax: 3024822212 291 Carter Dr Ste A
Middletown, DE 197095845
Phone: 8443657246
Fax: 3023497071
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2022
- CMS specialties
- Nurse Practitioner
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Nurse Practitioner (CMS)
- Taxonomy code
- 363LA2200X
- Enumeration date
- Jun 19, 2022
- Record updated
- Sep 12, 2023
More registry details
- Provider type
- Individual · Type 1
- Other reported name
- ELLEN BRYN BAKER
- Reported credentials
- NP
Reported taxonomies and licenses
363LP2300X
License reported: LP-0010054 DE
363LA2200X · Primary
License reported: SP025575 PA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
405 Silverside Rd Ste 104Wilmington, DE 19809-1768
- Phone
- (844) 365-7246
- Fax
- (302) 792-1372
Mailing address
291 CARTER DR STE AMIDDLETOWN, DE 197095845
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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