Stephen M Prefontaine, D.O.

General Practice · Allendale, MI · Grand Rapids-Wyoming-Kentwood, MI · In the data 2013 to 2024 · NPI 1114953304

See where Stephen M Prefontaine, D.O. ranks among 86 General Practice peers

The Physician Report shows Medicare work, payment, the comparison with similar practices and the trend across the data years.

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What the Physician Report contains

Show details10 known limitations

Included

  • Exact Medicare payment figures for each data year
  • Calculated Medicare fee-for-service work RVUs for each data year
  • Historical results for every data year with usable data
  • Peer comparisons: rank, percentile and rank band among the same specialty, the peer medians, and where the physician falls in the peer distribution
  • Beneficiaries, services, service mix and code-level lines
  • A printable report with the data years, methodology and limitations

Not included

  • Other physicians' figures and ranks
  • The market's cohort table, percentile table and market trend (the Market Comparison)
  • Peer comparison flags (professional subscription, not sold)

Known limitations

  • CMS suppresses code lines with fewer than 11 beneficiaries, so calculated work RVUs are a floor.
  • 2016: fewer than 20 peers in the metro, so ranks and percentiles use state peers (203).
  • 2017: fewer than 20 peers in the metro, so ranks and percentiles use state peers (184).
  • 2018: fewer than 20 peers in the metro, so ranks and percentiles use state peers (172).
  • 2019: fewer than 20 peers in the metro, so ranks and percentiles use state peers (157).
  • 2020: fewer than 20 peers in the metro, so ranks and percentiles use state peers (133).
  • 2021: fewer than 20 peers in the metro, so ranks and percentiles use state peers (115).
  • 2022: fewer than 20 peers in the metro, so ranks and percentiles use state peers (101).
  • 2023: fewer than 20 peers in the metro, so ranks and percentiles use state peers (94).
  • 2024: fewer than 20 peers in the metro, so ranks and percentiles use state peers (86).

Available data

years in the data
12
peers in the 2024 peer group
86
a report can be prepared
Yes
Data by year12 of 12 published
Data yearIn the CMS fileUsable for a reportPeer group for ranks
2013YesYesmetro peers, 340
2014YesYesmetro peers, 358
2015YesYesmetro peers, 355
2016YesYesstate peers, 203
2017YesYesstate peers, 184
2018YesYesstate peers, 172
2019YesYesstate peers, 157
2020YesYesstate peers, 133
2021YesYesstate peers, 115
2022YesYesstate peers, 101
2023YesYesstate peers, 94
2024YesYesstate peers, 86

Years Stephen M Prefontaine, D.O. is in the CMS Medicare Physician & Other Practitioners files. Ranks use same-specialty peers in the first of the metro, the state and the nation with at least 20 peers. How ranks are computed · Limitations

Where Stephen M Prefontaine, D.O. practices

Credentials
D.O.
Specialty on claims
General Practice
Practice location on Medicare claims
Allendale, MIGrand Rapids-Wyoming-Kentwood, MI metroStreet address not shown unless the clinician turns it on.
Medicare participation
Participating (accepts assignment on all claims)
Years in the data
2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 (12 of 12 published)

Groups

Hospitals

Not listed with a hospital in the CMS Doctors and Clinicians facility affiliation file.

Source: CMS Doctors and Clinicians files, snapshot 2026-10-02. May lag reality.

Practice location and specialty by year

Show details12 years

The practice location on the claims is the same in every year. The specialty on the claims changed between years.

Data yearPractice location on Medicare claimsAreaSpecialty on claims
2013Allendale, MIGrand Rapids-Wyoming-Kentwood, MIFamily Practice
2014Allendale, MIGrand Rapids-Wyoming-Kentwood, MIFamily Practice
2015Allendale, MIGrand Rapids-Wyoming-Kentwood, MIFamily Practice
2016Allendale, MIGrand Rapids-Wyoming-Kentwood, MIGeneral Practice changed
2017Allendale, MIGrand Rapids-Wyoming-Kentwood, MIGeneral Practice
2018Allendale, MIGrand Rapids-Wyoming-Kentwood, MIGeneral Practice
2019Allendale, MIGrand Rapids-Wyoming-Kentwood, MIGeneral Practice
2020Allendale, MIGrand Rapids-Wyoming-Kentwood, MIGeneral Practice
2021Allendale, MIGrand Rapids-Wyoming-Kentwood, MIGeneral Practice
2022Allendale, MIGrand Rapids-Wyoming-Kentwood, MIGeneral Practice
2023Allendale, MIGrand Rapids-Wyoming-Kentwood, MIGeneral Practice
2024Allendale, MIGrand Rapids-Wyoming-Kentwood, MIGeneral Practice

From the provider fields of each year's CMS Medicare Physician & Other Practitioners file (the location and specialty on the claims, as CMS publishes them).

Peer group a report would use

Show details86 peers

For 2024, a Physician Report would place Stephen M Prefontaine, D.O. in a peer group of 86 General Practice clinicians, Stephen M Prefontaine, D.O. included, at the state level (Michigan).

Peers are clinicians with the same specialty on their claims, in the first of the metro area, the state and the nation that has enough of them. The sizes for every year are in the table under Available data.

About this data

Show details

This page comes from public files the Centers for Medicare & Medicaid Services publishes each year: the Medicare Physician & Other Practitioners files, which list the Part B services each clinician billed to Original Medicare, and the Doctors and Clinicians files, which list group and hospital affiliations. It covers Original Medicare fee-for-service only: Medicare Advantage, Medicaid and commercial insurance are not in these files, and CMS leaves out any service line with fewer than 11 beneficiaries. The location and specialty are what the claims show, and affiliations are as of the snapshot date, so either can lag a recent change. A listing here says nothing about quality of care.

How the data is processed · Known limitations · Report an error

Physicians can claim their page for notices and a statement. Claiming does not show figures; those are in a Physician Report.

Original Medicare Part B fee-for-service only. Payments go to the billing entity, not to the clinician. Limitations · Methodology