Ellen Bryn Brennan, NP
Adult Health Nurse Practitioner · Wilmington, DE
Ellen Bryn Brennan, NP is an adult health nurse practitioner with a practice address in Wilmington, Delaware, and NPI 1821729039, issued on Jun 19, 2022. Check the license (Delaware LP-0010054, as entered in NPPES) with the Delaware board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ellen Bryn Brennan
- Credential
- NP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License numbers
- LP-0010054 DE
SP025575 PA
Self-reported in NPPES; status is on the state search - Practice location
- 405 Silverside RD Ste 104, Wilmington, DE 19809
- Phone
- (844) 365-7246
- Enumerated
- Jun 19, 2022
- Record last updated
- Sep 12, 2023
- Fax
- (302) 792-1372
- Medicare enrollment
- Enrolled (PECOS I20241122001482); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 88 in Delaware → Look up another NPI →
Also registered at 405 Silverside RD Ste 104
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Dina Henry, MSN, APRN, FNP-CNurse Practitioner1184431934
- Christopher HoverPhysician Assistant1275105892
- Manny Lai, DOPain Medicine Physician1669836037
Verify Ellen Bryn Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this profession
Search for license LP-0010054Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
482 Medicare Part D claims for 153 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 28 claims were for opioids.
Most prescribed
- Atorvastatin Calcium24 claims
- Levothyroxine Sodium23 claims
- Amlodipine Besylate19 claims
- Eliquis19 claims
- Metoprolol Tartrate17 claims
- Ipratropium-Albuterol16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Post Acute Specialists LLCLillington, NC
- Post Acute Specialists OF Massachusetts PLLCNorth Andover, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ellen Bryn Brennan among 88 adult health nurse practitioner records in Delaware
Ellen Bryn Brennan, NP is one of 88 adult health nurse practitioner records with a practice address in Delaware. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 84% of them.
- NPI issued2022 · 84% of these records are older, 9% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2022 · median 2015 among the 40 with a school on file
- Record last updated2023 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in Delaware
There are 88 adult health nurse practitioner records in Delaware.
All 88 in Delaware → Every provider in Wilmington → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Mary High, R.N., M.S.N.Wilmington, DE 198081457350019
- Emily Keller, CRNPWilmington, DE 198081386010080
- Barbara Sartell, CRNPWilmington, DE 198081346318425
- Marta Troiani, NPWilmington, DE 198081861158453
- Lois Dixon, AGNPGreenville, DE 198071760888655
- Greta ClarkeWilmington, DE 198051730289638
- Mary Nairn, CRNPWilmington, DE 198051104836576
- Mary Wood, ANP-BCWilmington, DE 198051396830899
Common questions
What is Ellen Bryn Brennan, NP's NPI number?
Ellen Bryn Brennan, NP's National Provider Identifier (NPI) is 1821729039, issued on Jun 19, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Bryn Brennan, NP located?
The NPPES record lists a practice address at 405 Silverside RD Ste 104, Wilmington, DE, 19809. Phone: (844) 365-7246. Providers update this record themselves, so call before visiting.
How can I verify Ellen Bryn Brennan, NP's license?
NPPES lists Delaware license number LP-0010054, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity only.
How much does Ellen Bryn Brennan, NP prescribe under Medicare Part D?
In 2024, Ellen Bryn Brennan, NP had 482 Medicare Part D claims for 153 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.
What is Ellen Bryn Brennan, NP's MIPS final score?
The 2023 MIPS final score is 76.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.