Quick answers
- Which hospitals does Ruth Mahmood work at?
- Medicare's official clinician data lists Ruth Mahmood at 3 hospitals: Aspirus Wausau Hospital, Marshfield Medical Center and Marshfield Medical Center - Weston. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ruth Mahmood see patients?
- Medicare's clinician data lists 3 practice locations, including Marshfield, WI, Rosholt, WI and Schofield, WI. Call before your visit to confirm the address.
- What is Ruth Mahmood's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Ruth Mahmood accept Medicare assignment?
- Yes. Medicare's clinician data says Ruth Mahmood 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.
- Does Ruth Mahmood offer telehealth?
- Medicare's clinician data says Ruth Mahmood offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Ruth Mahmood?
- (715) 387-5511, as listed in official Medicare / NPI Registry data.
- What is Ruth Mahmood's NPI number?
- 1659518199. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ruth Mahmood works
Medicare's Facility Affiliation Data lists Ruth Mahmood at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aspirus Wausau HospitalWausau, WI · Acute Care Hospital · CCN 520030
- Marshfield Medical CenterMarshfield, WI · Acute Care Hospital · CCN 520037
- Marshfield Medical Center - WestonWeston, WI · Acute Care Hospital · CCN 520202
Practice locations
Addresses where Ruth Mahmood is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 N Oak AveMarshfield, WI 54449 (715) 387‑5511
- 200880 Canopy LnRosholt, WI 54473 (715) 439‑3084
- 6105 Babl Ln, WestonSchofield, WI 54476 (715) 574‑0413
Group practices
Medicare enrollment lists Ruth Mahmood as a member of these groups (CMS data updated 2026-10-02).
- MCHS Hospitals Inc1,197 clinicians in the group
- 3D Healthcare Consulting LLC8 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Marshfield
Clinicians with the same Medicare primary specialty in Marshfield, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1659518199 |
| 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