Quick answers
- Which hospitals does Jason McMaster work at?
- Medicare's official clinician data lists Jason McMaster at 2 hospitals: SSM Health St Clare Hospital - Baraboo and Watertown Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jason McMaster see patients?
- Medicare's clinician data lists 6 practice locations, including Watertown, WI and Madison, WI. Call before your visit to confirm the address.
- What is Jason McMaster's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Jason McMaster accept Medicare assignment?
- Yes. Medicare's clinician data says Jason McMaster 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 Jason McMaster?
- (920) 262-4371, as listed in official Medicare / NPI Registry data.
- What is Jason McMaster's NPI number?
- 1184990178. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jason McMaster works
Medicare's Facility Affiliation Data lists Jason McMaster at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- SSM Health St Clare Hospital - BarabooBaraboo, WI · Acute Care Hospital · CCN 520057
- Watertown Memorial HospitalWatertown, WI · Acute Care Hospital · CCN 520116
Practice locations
Addresses where Jason McMaster is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 125 Hospital DrWatertown, WI 53098
- 125 Hospital Dr, Suite 2003Watertown, WI 53098 (920) 262‑4371
- 128 Hospital DrWatertown, WI 53098 (920) 262‑4825
- 132 Hospital DrWatertown, WI 53098 (920) 261‑2020
- 1507 Doctors CtWatertown, WI 53094 (920) 261‑4111
Group practices
Medicare enrollment lists Jason McMaster as a member of these groups (CMS data updated 2026-10-02).
- Dean Health Systems Inc1,159 clinicians in the group
- Watertown Physician Practices LLC67 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Watertown
Clinicians with the same Medicare primary specialty in Watertown, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1184990178 |
| 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