Dr. Trevor J. Day, DO
- Medicare services, 2024
- 306
- Medicare patients, 2024
- 193
- Part D claims, 2024
- 241
- Hospital affiliations
- 3
- Industry payments
- $11,923
- Practice address
- 1380 East Medical Center Drive, Saint George, UT 84790
- Practice phone
- Call (435) 251-2100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Day's professional email, personal email and mobile number
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Dr. Trevor J. Day is a general surgeon in Saint George, Utah
Dr. Day practices at St. George Regional Hospital in Saint George, Utah, part of Intermountain Health.
Dr. Day's NPI, 1861732257, was assigned on February 21, 2013. Dr. Day graduated from Arizona College of Osteopathic Medicine Mid Western University in 2013. Dr. Day holds Utah license 10620515-1204.
- NPI
- 1861732257NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305155938
- NPI enumeration date
- February 21, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (435) 251-2100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Trevor J. Day practices at St. George Regional Hospital in Saint George, Utah
Dr. Day's primary practice is St. George Regional Hospital, at 1380 East Medical Center Drive, Saint George, UT 84790 in Washington County. The practice phone is (435) 251-2100.
- St. George Regional Hospital1380 East Medical Center Drive, Saint George, UT 84790 · Washington CountyPhone(435) 251-2100
Source: Dmand AI Affiliation Data
Dr. Trevor J. Day is affiliated with 4 sites of care and 1 medical group
Dr. Day's primary practice is St. George Regional Hospital in Saint George, Utah, part of Intermountain Health. Dr. Day is also affiliated with Cedar City Hospital. The medical group on file is Utah Surgical Associates. Dmand AI also links Dr. Day to 1 more hospital and 1 behavioral health center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Trevor J. Day's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Day practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. George Regional Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Trevor J. Day is one of 229 general surgeons in Utah
Surgery is Dr. Day's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Day is licensed in Utah.
Specialties and state licenses
- Surgery, UtahPrimary
General surgeons near Dr. Day
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Trevor J. Day billed Medicare for 306 services in 2024
CMS data shows 306 Medicare services from Dr. Day across 9 procedure codes in 2024, for 193 Medicare patients. Medicare paid $34,062 for them.
Dr. Day's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1962024: 27842%
- Surgery
- 2023: 392024: 2828%
Where Dr. Day's Medicare services took place, 2024
- In an office15049%
- In a facility15651%
Dr. Day compared with the Utah median for general surgeons, 2024
- Dr. Day
- Utah median
- Medicare services
- 306vs 973.2 times
- Medicare patients
- 193vs 902.1 times
- Part D claims
- 169vs 325.3 times
Medians across 231 general surgeons in Utah with Dmand AI profiles that report each measure.
Dr. Day's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Day and other general surgeons in Utah.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Trevor J. Day treated 193 Medicare patients in 2024, average age 75
CMS counts 193 Medicare patients who saw Dr. Day in 2024. The largest group is 65 to 74, with 81 patients. 74% of them have high blood pressure, and 73% have high cholesterol. 6% are also on Medicaid. Their average risk score is 1.62, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Day's median patient age at 68, with 40% women.
Dr. Day's Medicare patients by age, 2024
Dr. Day's Medicare patients by sex, 2024
- Women8343%
- Men11057%
Chronic conditions among Dr. Day's Medicare patients, 2024
- High blood pressure74%
- High cholesterol73%
- Arthritis60%
- Ischemic heart disease33%
- Mood disorders31%
- Chronic kidney disease30%
- Depression28%
- Diabetes28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Day's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women40%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Trevor J. Day wrote 241 Medicare Part D claims in 2024
In 2024, Dr. Day wrote 241 Medicare Part D claims for 109 patients. 99% of them were for generic drugs. CMS names the drug for 169 of them, across 7 drugs with 11 or more claims each, at $1,006 in total drug cost. In 2023, CMS named 156 claims across 6 drugs.
Dr. Day's Part D claims by kind of drug, 2024
- Generic239 claims99%
- Brand-name and other2 claims1%
Dr. Day's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Day's Part D claims, 2024
- Opioids32%78 of 241 claims
- Antibiotics17%40 of 241 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1562024: 1698%
Drugs named by CMS: 7 in 2024, 6 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Trevor J. Day ranks in the 87th percentile for hernia repair (minimally invasive) in Medicare
Dr. Day accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Day as offering telehealth. CMS counts 19 procedures of hernia repair (minimally invasive) by Dr. Day, more than 87% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Day ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 87th percentile19 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 45th percentile14 procedures
- Colonoscopy
- 43rd percentile13 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Trevor J. Day received $11,923 in industry payments from 2017 to 2025
CMS Open Payments shows 49 general payments to Dr. Day from 14 drug and device companies from 2017 to 2025. Education make up the largest share, 59% of the total. Intuitive Surgical, Inc. paid the most, $10,091.
General payments to Dr. Day by program year, 2017 to 2025
General payments to Dr. Day by kind, 2017 to 2025
- Education$7,00059%
- Travel and lodging$3,68631%
- Food and beverage$1,22410%
- Gifts$140%
Companies that paid Dr. Day the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Trevor J. Day graduated from Arizona College of Osteopathic Medicine Mid Western University
Dr. Day graduated from Arizona College of Osteopathic Medicine Mid Western University in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Trevor J. Day's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Trevor J. Day
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Trevor J. Day's NPI number?
Dr. Trevor J. Day's NPI number is 1861732257. It was assigned on February 21, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Trevor J. Day?
Dr. Trevor J. Day is a general surgeon in Saint George, Utah. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Trevor J. Day practice?
Dr. Day practices at 1380 East Medical Center Drive, Saint George, UT 84790. Dr. Day's primary practice is St. George Regional Hospital in Saint George, Utah, part of Intermountain Health. Dmand AI also links Dr. Day to 1 hospital and 1 behavioral health center.
What is Dr. Trevor J. Day's office phone number?
The practice phone on file for Dr. Day is (435) 251-2100.
What is Dr. Trevor J. Day's medical license number?
Dr. Day holds Utah license 10620515-1204.
Which hospitals is Dr. Trevor J. Day affiliated with?
Dr. Day practices at St. George Regional Hospital in Saint George, Utah. Dr. Day is also affiliated with Cedar City Hospital. Dmand AI links Dr. Day to 1 more hospital.
What medical group is Dr. Trevor J. Day part of?
Dr. Day is linked to Utah Surgical Associates.
Does Dr. Trevor J. Day accept Medicare?
Yes. CMS data shows Dr. Day billed Medicare for 306 services in 2024, and Dr. Day accepts Medicare assignment.
Does Dr. Trevor J. Day offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Day as offering telehealth services.
How many Medicare patients does Dr. Trevor J. Day see?
CMS counts 193 Medicare patients who saw Dr. Day in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Trevor J. Day bill to Medicare?
In 2024, Dr. Day's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99213) and hospital inpatient care (99222).
Where did Dr. Trevor J. Day go to medical school?
Dr. Day graduated from Arizona College of Osteopathic Medicine Mid Western University in 2013.
What drugs does Dr. Trevor J. Day prescribe most?
In 2024 Medicare Part D data, Dr. Day's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ondansetron ODT and Pantoprazole Sodium.
Has Dr. Trevor J. Day received payments from drug or device companies?
CMS Open Payments shows $11,923 in general payments to Dr. Day from 14 companies from 2017 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Trevor J. Day been practicing?
Dr. Day graduated from medical school in 2013, 13 years ago.
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