Lera O'Sullivan, MD
NPI 1245082866 · Emergency Medicine Physician · Madison, WI
Enrolled with Medicare as Order and Referring Only - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lera O'Sullivan, MD is a Emergency Medicine Physician provider in Madison, WI (NPI 1245082866).
Provider details
- NPI number
- 1245082866
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 8675620 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2024-04-05
- Last updated
- 2026-01-23
- Certified
- 2026-01-23
Frequently asked questions
- What is Lera O'Sullivan's NPI number?
- Lera O'Sullivan's National Provider Identifier (NPI) is 1245082866, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lera O'Sullivan's specialty?
- Lera O'Sullivan is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lera O'Sullivan located?
- Lera O'Sullivan's practice location on file with NPPES is Uw Health - Gme 600 Highland Ave, Madison, WI 53792-0001.
- What is Lera O'Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Lera O'Sullivan is (608) 263-6400.
- Does Lera O'Sullivan accept Medicare?
- Lera 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 Lera O'Sullivan's NPI active?
- Yes — Lera O'Sullivan's NPI (1245082866) is active in the NPPES registry as of the last update on 2026-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.