Greg E. Halliday, PA-C
- Medicare patients, 2024
- 508
- Part D claims, 2024
- 8,733
- Hospital affiliations
- 2
- Industry payments
- $179
- Medical groups
- 2
- Practice address
- 1034 North 500 West, Provo, UT 84604
- Practice phone
- Call (801) 373-7850
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Greg Halliday's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Greg E. Halliday is a physician assistant in Provo, Utah
Greg Halliday practices at Utah Valley Hospital in Provo, Utah, part of Intermountain Health.
Greg Halliday's NPI, 1366431918, was assigned on October 17, 2005. Greg Halliday holds Utah license 3086482-1206.
- NPI
- 1366431918NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204875602
- NPI enumeration date
- October 17, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (801) 373-7850
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Greg E. Halliday practices at Utah Valley Hospital in Provo, Utah
Greg Halliday's primary practice is Utah Valley Hospital, at 1034 North 500 West, Provo, UT 84604 in Utah County. The practice phone is (801) 373-7850.
- Utah Valley Hospital1034 North 500 West, Provo, UT 84604 · Utah CountyPhone(801) 373-7850
Source: Dmand AI Affiliation Data
Greg E. Halliday is affiliated with 2 sites of care and 2 medical groups
Greg Halliday's primary practice is Utah Valley Hospital in Provo, Utah, part of Intermountain Health. Greg Halliday is also affiliated with Logan Regional Hospital. The medical group on file is Intermountain Health. Dmand AI also links Greg Halliday to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Greg E. Halliday's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Greg Halliday practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Utah Valley Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Greg E. Halliday is one of 1,645 physician assistants in Utah
Physician assistant is Greg Halliday's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Greg Halliday is licensed in Utah.
Specialties and state licenses
- Physician assistant, UtahPrimary
Physician assistants near Greg Halliday
Counts of physician assistants 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
Greg E. Halliday treated 508 Medicare patients in 2024, average age 77
CMS counts 508 Medicare patients who saw Greg Halliday in 2024. The largest group is 75 to 84, with 233 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 6% are also on Medicaid. Their average risk score is 1.53, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Greg Halliday's median patient age at 73, with 38% women.
Greg Halliday's Medicare patients by age, 2024
Greg Halliday's Medicare patients by sex, 2024
- Women19939%
- Men30961%
Chronic conditions among Greg Halliday's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease75%
- Arthritis47%
- Heart failure41%
- Atrial fibrillation37%
- Chronic kidney disease37%
- Diabetes35%
Share of Medicare patients with each condition. A patient can have several.
Greg Halliday's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women38%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Greg E. Halliday wrote 8,733 Medicare Part D claims in 2024
In 2024, Greg Halliday wrote 8,733 Medicare Part D claims for 1,251 patients. 88% of them were for generic drugs.
Greg Halliday's Part D claims by kind of drug, 2024
- Generic7,681 claims88%
- Brand-name1,052 claims12%
Drug classes CMS tracks in Greg Halliday's Part D claims, 2024
- Antibiotics0%21 of 8,733 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Greg E. Halliday takes part in Medicare
Greg Halliday accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Greg E. Halliday received $179 in industry payments in 2025
CMS Open Payments shows 11 general payments to Greg Halliday from 6 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $60.
Companies that paid Greg Halliday the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Greg E. Halliday'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 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 (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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Greg E. Halliday
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Greg E. Halliday's NPI number?
Greg E. Halliday's NPI number is 1366431918. It was assigned on October 17, 2005, and it is active in the NPI Registry.
What does Greg E. Halliday specialize in?
Greg E. Halliday is a physician assistant in Provo, Utah. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Greg E. Halliday practice?
Greg Halliday practices at 1034 North 500 West, Provo, UT 84604. Greg Halliday's primary practice is Utah Valley Hospital in Provo, Utah, part of Intermountain Health. Dmand AI also links Greg Halliday to 1 medical group.
What is Greg E. Halliday's office phone number?
The practice phone on file for Greg Halliday is (801) 373-7850.
What is Greg E. Halliday's medical license number?
Greg Halliday holds Utah license 3086482-1206.
Which hospitals is Greg E. Halliday affiliated with?
Greg Halliday practices at Utah Valley Hospital in Provo, Utah. Greg Halliday is also affiliated with Logan Regional Hospital.
What medical group is Greg E. Halliday part of?
Greg Halliday is linked to Intermountain Health. Dmand AI links Greg Halliday to 1 more medical group.
Does Greg E. Halliday accept Medicare?
Yes. CMS lists Greg Halliday as accepting Medicare assignment.
How many Medicare patients does Greg E. Halliday see?
CMS counts 508 Medicare patients who saw Greg Halliday in 2024, with an average age of 77.
Has Greg E. Halliday received payments from drug or device companies?
CMS Open Payments shows $179 in general payments to Greg Halliday from 6 companies from 2025 to 2025. The largest total came from Amgen Inc.
How long has Greg E. Halliday been practicing?
Greg Halliday graduated from medical school in 2004, 22 years ago.
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