Quick answers
- Which hospitals does James Volberding work at?
- Medicare's official clinician data lists James Volberding at 5 hospitals: Ascension Columbia St Marys Hospital Milwaukee, Ascension SE Wisconsin Hospital, Ascension St Francis Hospital, Orthopaedic Hospital of Wisconsin and Waukesha Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James Volberding see patients?
- Medicare's clinician data lists 1 practice location in Milwaukee, WI. Call before your visit to confirm the address.
- What is James Volberding's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does James Volberding accept Medicare assignment?
- Yes. Medicare's clinician data says James Volberding 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 James Volberding offer telehealth?
- Medicare's clinician data says James Volberding offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for James Volberding?
- (414) 272-8950, as listed in official Medicare / NPI Registry data.
- What is James Volberding's NPI number?
- 1629007125. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James Volberding works
Medicare's Facility Affiliation Data lists James Volberding at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI · Acute Care Hospital · CCN 520051
- Ascension SE Wisconsin HospitalMilwaukee, WI · Acute Care Hospital · CCN 520136
- Ascension St Francis HospitalMilwaukee, WI · Acute Care Hospital · CCN 520078
- Orthopaedic Hospital of WisconsinGlendale, WI · Acute Care Hospital · CCN 520194
- Waukesha Memorial HospitalWaukesha, WI · Acute Care Hospital · CCN 520008
Practice locations
Addresses where James Volberding is enrolled with Medicare (CMS data updated 2026-10-02).
- 788 N Jefferson St, Suite 300Milwaukee, WI 53202 (414) 272‑8950
Group practices
Medicare enrollment lists James Volberding as a member of this group (CMS data updated 2026-10-02).
- Madison Medical Affiliates Inc86 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Milwaukee
Clinicians with the same Medicare primary specialty in Milwaukee, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Southern Illinois University School Of Medicine |
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1629007125 |
| 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