Eileen O'Sullivan, MB BCH BAO
NPI 1538504519 · Emergency Medicine Physician · Vancouver, WA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eileen O'Sullivan, MB BCH BAO is a Emergency Medicine Physician provider in Vancouver, WA (NPI 1538504519).
Provider details
- NPI number
- 1538504519
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MB BCH BAO
- Sex
- Female
- Sole proprietor
- Yes
- License
- MD192455 (OR)
Specialties & taxonomies
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
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
223 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 60 | $126 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 38 | $177 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 38 | $172 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 25 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 14 | $91 |
| Insertion of Needle Into Vein for Collection of Blood Sample |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefadroxil | 48 | 48 |
| Prednisone | 29 | 29 |
| Ondansetronbrand: Ondansetron Odt | 23 | 23 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 19 | 19 |
| Oxycodone Hcl | 15 | 15 |
| Azithromycin | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 3181 Sw Sam Jackson Park RdPortland, OR 97239-3011Phone: (503) 494-7500
Registry dates
- Enumerated
- 2013-05-06
- Last updated
- 2023-03-29
- Certified
- 2023-03-29
Frequently asked questions
- What is Eileen O'Sullivan's NPI number?
- Eileen O'Sullivan's National Provider Identifier (NPI) is 1538504519, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eileen O'Sullivan's specialty?
- Eileen O'Sullivan is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Eileen O'Sullivan located?
- Eileen O'Sullivan's practice location on file with NPPES is 2529 Ne 139th St Ste 110, Vancouver, WA 98686-2719.
- What is Eileen O'Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Eileen O'Sullivan is (360) 882-2778.
- Does Eileen O'Sullivan accept Medicare?
- Eileen O'Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eileen O'Sullivan's NPI active?
- Yes — Eileen O'Sullivan's NPI (1538504519) is active in the NPPES registry as of the last update on 2023-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.