Quick answers
- Which hospitals does Sergio A. Ulloa work at?
- Medicare's official clinician data lists Sergio A. Ulloa at 2 hospitals: Holzer Medical Center and OhioHealth O'Bleness Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sergio A. Ulloa see patients?
- Medicare's clinician data lists 1 practice location in Athens, OH. Call before your visit to confirm the address.
- What is Sergio A. Ulloa's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does Sergio A. Ulloa accept Medicare assignment?
- Yes. Medicare's clinician data says Sergio A. Ulloa 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 Sergio A. Ulloa?
- (740) 566-4657, as listed in official Medicare / NPI Registry data.
- What is Sergio A. Ulloa's NPI number?
- 1912187626. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sergio A. Ulloa works
Medicare's Facility Affiliation Data lists Sergio A. Ulloa at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Holzer Medical CenterGallipolis, OH · Acute Care Hospital · CCN 360054
- OhioHealth O'Bleness HospitalAthens, OH · Acute Care Hospital · CCN 360014
Practice locations
Addresses where Sergio A. Ulloa is enrolled with Medicare (CMS data updated 2026-10-02).
- 75 Hospital Dr, Suite 140Athens, OH 45701 (740) 566‑4657
Group practices
Medicare enrollment lists Sergio A. Ulloa as a member of this group (CMS data updated 2026-10-02).
- OhioHealth Corporation2,314 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Ohio
Clinicians with the same Medicare primary specialty in Ohio — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Ohio University, College Of Osteopathic Medicine |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1912187626 |
| 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