Quick answers
- Which hospitals does David J. Woltmann work at?
- Medicare's official clinician data lists David J. Woltmann at 5 hospitals: Aspirus Keweenaw Hospital and Clinics, Edward W Sparrow Hospital, Henry Ford Allegiance Health, McLaren Greater Lansing and Up Health System Portage. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David J. Woltmann see patients?
- Medicare's clinician data lists 2 practice locations, including Lansing, MI and Hancock, MI. Call before your visit to confirm the address.
- What is David J. Woltmann's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does David J. Woltmann accept Medicare assignment?
- Yes. Medicare's clinician data says David J. Woltmann 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 David J. Woltmann offer telehealth?
- Medicare's clinician data says David J. Woltmann offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for David J. Woltmann?
- (906) 483-1060, as listed in official Medicare / NPI Registry data.
- What is David J. Woltmann's NPI number?
- 1548283567. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David J. Woltmann works
Medicare's Facility Affiliation Data lists David J. Woltmann at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aspirus Keweenaw Hospital and ClinicsLaurium, MI · Critical Access Hospital · CCN 231319
- Edward W Sparrow HospitalLansing, MI · Acute Care Hospital · CCN 230230
- Henry Ford Allegiance HealthJackson, MI · Acute Care Hospital · CCN 230092
- McLaren Greater LansingLansing, MI · Acute Care Hospital · CCN 230167
- Up Health System PortageHancock, MI · Acute Care Hospital · CCN 230108
Practice locations
Addresses where David J. Woltmann is enrolled with Medicare (CMS data updated 2026-10-02).
- 3960 Patient Care Dr, Suite 108Lansing, MI 48911
- 500 Campus DrHancock, MI 49930 (906) 483‑1060
Group practices
Medicare enrollment lists David J. Woltmann as a member of these groups (CMS data updated 2026-10-02).
- Portage Physician Practices Inc57 clinicians in the group
- Ingham Nephrology and Hypertension PC7 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Lansing
Clinicians with the same Medicare primary specialty in Lansing, MI — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Michigan State University College Of Osteopathic Medicine |
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1548283567 |
| 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