NPPES file of Aug 9, 2026

Jameson Ross Petersen

Rheumatology Physician · St George, UT

Jameson Ross Petersen is a rheumatology physician with a practice address in St George, Utah, and NPI 1104289123, issued on Mar 29, 2016. Check the license (Utah 12137452-1205, as entered in NPPES) on the Utah Medical Licensing Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104289123
Name
Jameson Ross Petersen
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
12137452-1205 UT
Self-reported in NPPES; status is on the state search
Practice location
544 S 400 E, St George, UT 84770
Phone
(435) 688-6200
Enumerated
Mar 29, 2016
Record last updated
Aug 18, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210816004119); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 544 S 400 E

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Chauncey Adams, PHDClinical Psychologist1437251170
  2. Kathryn Adams, APRNPsychiatric/Mental Health Nurse Practitioner1972605616
  3. Christie Benton, R.D.Registered Dietitian1255599817
  4. Justin Brinkerhoff, PA-CPhysician Assistant1568532125
  5. Wayne Brown, MDPsychiatry Physician1730125956
  6. Patrick Carroll, M.D., M.P.H.Neonatal-Perinatal Medicine Physician1275719445

Verify Jameson Ross Petersen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersUtah Medical Licensing Board
    Search for license 12137452-1205
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Utah license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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56% fewer Medicare Part D claims than the average rheumatology physician in 2024

866 Medicare Part D claims for 166 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Jameson Petersen866
  2. Specialty average1,978

Most prescribed

  1. Prednisone223 claims
  2. Methotrexate193 claims
  3. Leflunomide58 claims
  4. Hydroxychloroquine Sulfate48 claims
  5. Celecoxib47 claims
  6. Folic Acid35 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.

Bills Medicare through one group practice

  1. Ihc Health Services IncSt George, UT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jameson Ross Petersen among 65 rheumatology physician records in Utah

Jameson Ross Petersen is one of 65 rheumatology physician records with a practice address in Utah. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 78% of them.

  • NPI issued2016 · 78% of these records are older, 20% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2016 · median 2010 among the 41 with a school on file
  • Record last updated2021 · 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 207RR0500X and a Utah practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in Utah

There are 65 rheumatology physician records in Utah.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Carmen Gota, MDSt George, UT 847701568427052
  2. Michael Grant, MDSt George, UT 847901154851467
  3. Matthew Hubbard, D.O.St George, UT 847901528401015
  4. Paul Jensen, M.D.St George, UT 847901851617898
  5. Jeffrey Mathews, MDSt George, UT 847901518968015
  6. Raymond McPeek, M.D.Ivins, UT 847381760576367
  7. Matthew Call, D.O.Springville, UT 846631083904619
  8. Richard Call, MDProvo, UT 846041982692182

Common questions

What is Jameson Ross Petersen's NPI number?

Jameson Ross Petersen's National Provider Identifier (NPI) is 1104289123, issued on Mar 29, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Jameson Ross Petersen located?

The NPPES record lists a practice address at 544 S 400 E, St George, UT, 84770. Phone: (435) 688-6200. Providers update this record themselves, so call before visiting.

How can I verify Jameson Ross Petersen's license?

NPPES lists Utah license number 12137452-1205, 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 Jameson Ross Petersen prescribe under Medicare Part D?

In 2024, Jameson Ross Petersen had 866 Medicare Part D claims for 166 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.