Maia Eng, M.D.
See where Maia Eng, M.D. ranks among 1,822 Cardiology peers
The Physician Report shows Medicare work, payment, the comparison with similar practices and the trend across the data years.
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View sample reportWhat the Physician Report contains
Show details5 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.
- Not in the CMS file for 2020.
- 2022: fewer than 20 peers in the metro, so ranks and percentiles use state peers (1,782).
- 2023: fewer than 20 peers in the metro, so ranks and percentiles use state peers (1,813).
- 2024: fewer than 20 peers in the metro, so ranks and percentiles use state peers (1,822).
Available data
- years in the data
- 4
- peers in the 2024 peer group
- 1,822
- a report can be prepared
- Yes
Data by year4 of 5 published
| Data year | In the CMS file | Usable for a report | Peer group for ranks |
|---|---|---|---|
| 2020 | No | No | |
| 2021 | Yes | Yes | metro peers, 35 |
| 2022 | Yes | Yes | state peers, 1,782 |
| 2023 | Yes | Yes | state peers, 1,813 |
| 2024 | Yes | Yes | state peers, 1,822 |
Years Maia Eng, M.D. 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 Maia Eng, M.D. practices
- Credentials
- M.D.
- Specialty on claims
- Cardiology
- Practice location on Medicare claims
- Napa, CANapa, CA metroStreet address not shown unless the clinician turns it on.
- Medicare participation
- Participating (accepts assignment on all claims)
- Years in the data
- 2021, 2022, 2023, 2024 (4 of 5 published)
Groups
Hospitals
- Adventist Health Clearlake · Clearlake, CA
- Adventist Health Mendocino Coast · Fort Bragg, CA
- Adventist Health St Helena · Saint Helena, CA
- Adventist Health Ukiah Valley · Ukiah, CA
- Providence Queen Of The Valley Medical Center · Napa, CA
Source: CMS Doctors and Clinicians files, snapshot 2026-10-02. May lag reality.
Practice location and specialty by year
Show details4 years
The practice location on the claims is the same in every year. The specialty on the claims changed between years.
| Data year | Practice location on Medicare claims | Area | Specialty on claims |
|---|---|---|---|
| 2021 | Napa, CA | Napa, CA | Internal Medicine |
| 2022 | Napa, CA | Napa, CA | Cardiology changed |
| 2023 | Napa, CA | Napa, CA | Cardiology |
| 2024 | Napa, CA | Napa, CA | Cardiology |
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 details1,822 peers
For 2024, a Physician Report would place Maia Eng, M.D. in a peer group of 1,822 Cardiology clinicians, Maia Eng, M.D. included, at the state level (California).
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.
Other Cardiology clinicians in Napa
Show details3
Alphabetical by last name; all 3 whose practice location on Medicare claims is Napa in 2024. All Cardiology clinicians in Napa
Related pages
Show details
- Cardiology in Napa, CA
- Cardiology in California
- Cardiology in the United States
- All clinicians in Napa
- Napa, CA metro area
- California
- Adventist Health Physicians Network (group)
- St. Helena Hospital (group)
- Ukiah Adventist Hospital (group)
- Adventist Health Clearlake (hospital)
- Adventist Health Mendocino Coast (hospital)
- Adventist Health St Helena (hospital)
- Adventist Health Ukiah Valley (hospital)
- Providence Queen Of The Valley Medical Center (hospital)
- Methodology
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