Quick answers
- Which hospitals does Preston S. Sereg work at?
- Medicare's official clinician data lists Preston S. Sereg at 1 hospital: Mahaska Health Partnership. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Preston S. Sereg see patients?
- Medicare's clinician data lists 1 practice location in Oskaloosa, IA. Call before your visit to confirm the address.
- What is Preston S. Sereg's specialty?
- Medicare lists Family Practice as the primary specialty, and also Obstetrics/Gynecology.
- Does Preston S. Sereg accept Medicare assignment?
- Yes. Medicare's clinician data says Preston S. Sereg 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 Preston S. Sereg?
- (641) 676-7361, as listed in official Medicare / NPI Registry data.
- What is Preston S. Sereg's NPI number?
- 1215428115. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Preston S. Sereg works
Medicare's Facility Affiliation Data lists Preston S. Sereg at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mahaska Health PartnershipOskaloosa, IA · Critical Access Hospital · CCN 161379
Practice locations
Addresses where Preston S. Sereg is enrolled with Medicare (CMS data updated 2026-10-02).
- 201 Trueblood AveOskaloosa, IA 52577 (641) 676‑7361
Group practices
Medicare enrollment lists Preston S. Sereg as a member of this group (CMS data updated 2026-10-02).
- Mahaska County Hospital128 clinicians in the group
Specialties
- Family Practiceprimary
- Obstetrics/Gynecologyalso
Other family doctors in Oskaloosa
Clinicians with the same Medicare primary specialty in Oskaloosa, IA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215428115 |
| 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