Quick answers
- Which hospitals does Sean C. O`brien work at?
- Medicare's official clinician data lists Sean C. O`brien at 1 hospital: Lake Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sean C. O`brien see patients?
- Medicare's clinician data lists 3 practice locations, including Willard, OH, Chardon, OH and Conneaut, OH. Call before your visit to confirm the address.
- What is Sean C. O`brien's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does Sean C. O`brien accept Medicare assignment?
- Yes. Medicare's clinician data says Sean C. O`brien accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Sean C. O`brien?
- (419) 964-5479, as listed in official Medicare / NPI Registry data.
- What is Sean C. O`brien's NPI number?
- 1003271347. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sean C. O`brien works
Medicare's Facility Affiliation Data lists Sean C. O`brien at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lake HealthConcord, OH · Acute Care Hospital · CCN 360098
Practice locations
Addresses where Sean C. O`brien is enrolled with Medicare (CMS data updated 2026-10-02).
- 1100 Neal Zick RdWillard, OH 44890 (419) 964‑5479
- 150 7th AveChardon, OH 44024 (440) 285‑2900
- 158 W Main Rd, Suite 203Conneaut, OH 44030 (440) 285‑2960
Group practices
Medicare enrollment lists Sean C. O`brien as a member of these groups (CMS data updated 2026-10-02).
- University Primary Care Practices Inc1,079 clinicians in the group
- Safe Anesthesia Chardon LLC19 clinicians in the group
- Firelands Anesthesia Associates Inc6 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Ohio →
Other nurse anesthetists in Willard
Clinicians with the same Medicare primary specialty in Willard, OH — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003271347 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians