NPPES file of Aug 9, 2026

Michael Darley, M.D.

Rheumatology Physician · Provo, UT

Michael Darley, M.D. is a rheumatology physician with a practice address in Provo, Utah, and NPI 1538458146, issued on Apr 4, 2011. Check the license (Utah 8436520-1205, 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
1538458146
Name
Michael Darley
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
8436520-1205 UT
Self-reported in NPPES; status is on the state search
Practice location
1055 N 300 W Ste 303, Provo, UT 84604
Phone
(801) 852-9600
Enumerated
Apr 4, 2011
Record last updated
Sep 8, 2025
Fax
(801) 852-9695
Medicare enrollment
Enrolled (PECOS I20160517000333); accepts Medicare assignment
Medical or professional school
Saint Louis University School Of Medicine, 2011
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 1055 N 300 W Ste 303

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

  1. Lindsey Hoffmann, P.A.-CMedical Physician Assistant1336358217
  2. Ian Orozco, MDEndocrinology, Diabetes & Metabolism Physician1477688307

Verify Michael Darley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersUtah Medical Licensing Board
    Search for license 8436520-1205
    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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32% more Medicare Part D claims than the average rheumatology physician in 2024

2,614 Medicare Part D claims for 397 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 111 claims were for opioids.

  1. Michael Darley2,614
  2. Specialty average1,978

Most prescribed

  1. Methotrexate398 claims
  2. Hydroxychloroquine Sulfate285 claims
  3. Prednisone250 claims
  4. Celecoxib187 claims
  5. Leflunomide125 claims
  6. Gabapentin102 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: $2,181.66

168 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Darley$2,181.66
  2. Specialty average$8,538.33

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

  1. Peak Ent AssociatesProvo, UT

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

Michael Darley among 65 rheumatology physician records in Utah

Michael Darley, M.D. 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 2011, is newer than 55% of them.

  • NPI issued2011 · 55% of these records are older, 35% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2011 · median 2010 among the 41 with a school on file
  • Record last updated2025 · 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. Richard Call, MDProvo, UT 846041982692182
  2. Malgorzata Hanczyc, MDProvo, UT 846041467765735
  3. James Steier, MDProvo, UT 846041255402798
  4. Wenshu Yu, MDProvo, UT 846041073622288
  5. Matthew Call, D.O.Springville, UT 846631083904619
  6. Raymond McPeek, M.D.Ivins, UT 847381760576367
  7. Carmen Gota, MDSt George, UT 847701568427052
  8. Jameson PetersenSt George, UT 847701104289123

Common questions

What is Michael Darley, M.D.'s NPI number?

Michael Darley, M.D.'s National Provider Identifier (NPI) is 1538458146, issued on Apr 4, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Michael Darley, M.D. located?

The NPPES record lists a practice address at 1055 N 300 W Ste 303, Provo, UT, 84604. Phone: (801) 852-9600. Providers update this record themselves, so call before visiting.

How can I verify Michael Darley, M.D.'s license?

NPPES lists Utah license number 8436520-1205, 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 Michael Darley, M.D. prescribe under Medicare Part D?

In 2024, Michael Darley, M.D. had 2,614 Medicare Part D claims for 397 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.