Susan Brennan, D.O.
NPI 1952328411 · Emergency Medicine Physician · Dover, DE
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Susan Brennan, D.O. is a Emergency Medicine Physician provider in Dover, DE (NPI 1952328411).
Provider details
- NPI number
- 1952328411
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- OS011109L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
573 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 235 | $88 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 113 | $109 |
| Automated Urinalysis Test81003 | 50 | $2 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 45 | $125 |
| Detection Test By Immunoassay With Direct Visual Observation for Streptococcus, Group a (strep)87880 | 35 | $16 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 78 | 78 |
| Doxycycline Monohydrate | 68 | 68 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 62 | 61 |
| Amoxicillin | 56 | 54 |
| Cephalexin | 55 | 51 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 42 | 42 |
| Methylprednisolone | 19 | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Susan Brennan's NPI number?
- Susan Brennan's National Provider Identifier (NPI) is 1952328411, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Brennan's specialty?
- Susan Brennan is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Susan Brennan located?
- Susan Brennan's practice location on file with NPPES is 640 S State St, Dover, DE 19901-3530.
- What is Susan Brennan's phone number?
- The practice phone number listed in the NPPES registry for Susan Brennan is (302) 674-4700.
- Does Susan Brennan accept Medicare?
- Susan Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Susan Brennan's NPI active?
- Yes — Susan Brennan's NPI (1952328411) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.