Dr. Nathan Mjos, D.O.
What this data tells you about Dr. Mjos
Dr. Nathan Mjos is an emergency medicine specialist in Colton, CA, with 16 years of NPI registration. Based on federal Medicare data, Dr. Mjos performed 1,342 Medicare services across 1,279 unique beneficiaries.
Between the years covered by Open Payments, Dr. Mjos received a total of $1,818 from 3 pharmaceutical and/or device companies across 4 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in emergency medicine. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Mjos is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| EKG interpretation and report A standard electrocardiogram test that records the heart's electrical activity using at least 12 leads. The service includes a professional interpretation of the results and a written report. |
449 | $7 | $60 |
| Emergency department visit, high complexity An emergency department visit involving a high level of medical decision making. |
392 | $146 | $1,169 |
| Chest X-ray, 1 view An X-ray image of the chest taken from a single angle. This imaging test is used to visualize the structures within the chest cavity. |
195 | $7 | $66 |
| Critical care, first 30-74 min Emergency medical care for a critically ill or injured patient lasting between 30 and 74 minutes. This service involves direct patient care and medical decision making to stabilize the patient. |
145 | $183 | $1,543 |
| Emergency department visit, moderate complexity An emergency department visit for an established or new patient involving a moderate level of medical decision making. |
115 | $97 | $797 |
| Pelvis X-ray, 1-2 views An X-ray imaging test of the pelvic area using one to two different angles to visualize the bones and joints. |
17 | $7 | $63 |
| Knee X-ray, 3 views An X-ray imaging test of the knee joint that captures three different angles to evaluate the bones and surrounding structures. |
17 | $8 | $74 |
| Hip X-ray, 2-3 views An X-ray imaging test of the hip joint using two to three different angles to visualize the bones and surrounding structures. |
12 | $9 | $82 |
Industry Payment Transparency
Open Payments through 2021 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2021)
All-time payments by company (2018-2021) ›
Associated products mentioned in payments ›
The majority of payments (82%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in emergency medicine and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 8% for emergency medicine in CA.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2021 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Mjos is a mixed practice specialist, with above-average Medicare volume (top 3% in CA), with speaking/promotional industry engagement in the top 8% of CA peers, with 16 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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