Allan Clark Gunnerson, D.O.
Gastroenterology Physician · St George, UT
Allan Clark Gunnerson, D.O. is a gastroenterology physician with a practice address in St George, Utah, and NPI 1407081524, issued on May 19, 2009. Check the license (Utah 9786624-1204, as entered in NPPES) on the Utah Medical Licensing Board; the Medicare figures below come from public CMS files.
- Name
- Allan Clark Gunnerson
- Credential
- D.O.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 9786624-1204 UT
Self-reported in NPPES; status is on the state search - Practice location
- 1380 E Medical Center Dr Ste 4100, St George, UT 84790
- Phone
- (435) 251-3800
- Enumerated
- May 19, 2009
- Record last updated
- Sep 25, 2023
- Medicare enrollment
- Enrolled (PECOS I20160815002559); accepts Medicare assignment
- Medical or professional school
- Nova Southeastern College Of Osteo Medicine, 2009
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 149 in Utah → Look up another NPI →
Also registered at 1380 E Medical Center Dr Ste 4100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deborah Barton, NPAdult Health Nurse Practitioner1548234222
- Christopher Flannery, MDGastroenterology Physician1538396411
- Megan Hubbard, DOGastroenterology Physician1538671383
- Lonny Krause, APRN , NP-CFamily Nurse Practitioner1528523206
- Nicholas Laffely, M.D.Cardiovascular Disease Physician1801981410
- Lynn Nimer, M.D.Cardiovascular Disease Physician1689635922
Verify Allan Clark Gunnerson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersUtah Medical Licensing Board
Search for license 9786624-1204Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average gastroenterology physician in 2024
447 Medicare Part D claims for 169 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Pantoprazole Sodium198 claims
- Omeprazole72 claims
- Famotidine48 claims
- Mesalamine Er12 claims
- Metronidazole12 claims
- Tacrolimus12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $136.21
2 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Ihc Health Services IncCedar City, UT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allan Clark Gunnerson among 149 gastroenterology physician records in Utah
Allan Clark Gunnerson, D.O. is one of 149 gastroenterology physician records with a practice address in Utah. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 68% of them.
- NPI issued2009 · 68% of these records are older, 30% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2009 · median 2004 among the 103 with a school on file
- Record last updated2023 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Utah practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Utah
There are 149 gastroenterology physician records in Utah.
All 149 in Utah → Every provider in St George → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Tyson Amundsen, MDSt George, UT 847901013573054
- James Bown, M.D.St George, UT 847901629081260
- Scott Diamond, DOSt George, UT 847901730684432
- Christopher Flannery, MDSt George, UT 847901538396411
- Edward Frech, MDSt George, UT 847901942496757
- Megan Hubbard, DOSt George, UT 847901538671383
- George Jeung, D.O.St George, UT 847901275982464
- Brien Miller, D.O.St George, UT 847901992066799
Common questions
What is Allan Clark Gunnerson, D.O.'s NPI number?
Allan Clark Gunnerson, D.O.'s National Provider Identifier (NPI) is 1407081524, issued on May 19, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Allan Clark Gunnerson, D.O. located?
The NPPES record lists a practice address at 1380 E Medical Center Dr Ste 4100, St George, UT, 84790. Phone: (435) 251-3800. Providers update this record themselves, so call before visiting.
How can I verify Allan Clark Gunnerson, D.O.'s license?
NPPES lists Utah license number 9786624-1204, as entered by the provider. Search the Utah Medical Licensing Board at https://secure.utah.gov/llv/search/index.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Allan Clark Gunnerson, D.O. prescribe under Medicare Part D?
In 2024, Allan Clark Gunnerson, D.O. had 447 Medicare Part D claims for 169 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.