NPI registry status
Active
2026 NPPES data Body Imaging Physician NPI 1831145721 MD
Verify on CMS → Michael Spak, MD
Body Imaging Physician in Eau Claire, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,910 in Body Imaging Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
What the federal data shows
Michael Spak, MD is a Body Imaging Physician in Eau Claire, Wisconsin, listed in the federal CMS National Provider Identifier registry.
- #184
- Body Imaging Physician rank among Wisconsin specialties
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Michael Spak, MD
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1831145721), first enumerated 05/25/2006.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1831145721 · Body Imaging Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1831145721
- ENUM-LEGACY 2006
- TAX-NARROW 1,910
- RX-NONE No Part D
- BOOK-THIN 31 in Wisconsin
- PHOTO-ENUM Ronald Robinson · 2006
◑
Board-eligible specialty (heuristic, not verified)
Michael Spak, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Michael Spak, MD?
Quality data not reportedPrimary specialty
Body Imaging Physician
Specialty distribution in Wisconsin
How Body Imaging Physician compares to other specialties among Wisconsin providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Body Imaging Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1831145721 |
|---|---|
| Specialty | Body Imaging Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/25/2006 |
Body Imaging Physician Overview
How Michael Spak, MD fits within the Body Imaging Physician landscape nationally.
1,910
Body Imaging Physician Providers in US
51
States with Body Imaging Physician
48
Avg Claims per Provider
Nationwide Body Imaging Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Spak, both outside Wisconsin so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Body Imaging Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Spak.
One of 31 Body Imaging Physician providers enrolled in Wisconsin, 5 are shown here.
Dr. Bradley Abramson
D.O.
Mequon, WI
Dr. Philip Albert
M.D.
Wausau, WI
Dr. Albert Alter
MD
Madison, WI
Dr. Mark Augustyn
MD
Eau Claire, WI
Dr. Michael Babbitt
M.D.
Milwaukee, WI
Compare Body Imaging Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Michael Spak, MD's specialty? ▼
Michael Spak, MD specializes in Body Imaging Physician and practices in Eau Claire, Wisconsin. Credentials: MD.
Where is Michael Spak, MD located? ▼
Michael Spak, MD is located at 900 WEST CLAIREMONT AVENUE, Eau Claire, WI, 54701. Phone: (715) 839-4151.
What is Michael Spak, MD's NPI number? ▼
Michael Spak, MD's National Provider Identifier (NPI) is 1831145721, issued on 05/25/2006.
How many Body Imaging Physician providers are there in the US? ▼
There are 1,910 Body Imaging Physician providers across 51 states in the US. The average Body Imaging Physician provider writes 48 Medicare Part D claims per year.
Does Michael Spak, MD accept Medicare? ▼
Michael Spak, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Spak, MD's credentials? ▼
Michael Spak, MD's NPI is 1831145721 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.