Michael Spieth, MD
NPI 1134229859 · Diagnostic Radiology Physician · Marshfield, WI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Spieth, MD is a Diagnostic Radiology Physician provider in Marshfield, WI (NPI 1134229859).
Provider details
- NPI number
- 1134229859
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 40878 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
8,594 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 1,209 | $8 |
| X-Ray of Chest, 2 Views71046 | 735 | $10 |
| Ct Scan Head Or Brain Without Contrast70450 | 419 | $39 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 316 | $9 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 298 | $9 |
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452 | 275 | $75 |
| X-Ray of Knee, 3 Views |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-23
- Last updated
- 2015-02-18
Frequently asked questions
- What is Michael Spieth's NPI number?
- Michael Spieth's National Provider Identifier (NPI) is 1134229859, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Spieth's specialty?
- Michael Spieth is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Spieth located?
- Michael Spieth's practice location on file with NPPES is 1221 W State St, Marshfield, WI 54449-1799.
- What is Michael Spieth's phone number?
- The practice phone number listed in the NPPES registry for Michael Spieth is (715) 209-0235.
- Does Michael Spieth accept Medicare?
- Michael Spieth is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Spieth's NPI active?
- Yes — Michael Spieth's NPI (1134229859) is active in the NPPES registry as of the last update on 2015-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.