NPPES file of Aug 9, 2026

Tristan Stiles, PA-C

Physician Assistant · White City, OR

Tristan Stiles, PA-C is a physician assistant with a practice address in White City, Oregon, and NPI 1093143760, issued on Oct 16, 2013. Check the license (Oregon PA189830, as entered in NPPES) with the Oregon board that licenses this profession; 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
1093143760
Name
Tristan Stiles
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
PA189830 OR
PA1462 NV
Self-reported in NPPES; status is on the state search
Practice location
8385 Division RD, White City, OR 97503
Phone
(541) 826-5853
Enumerated
Oct 16, 2013
Record last updated
Nov 14, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(541) 826-5843
Medicare enrollment
Enrolled (PECOS I20190102001430); accepts Medicare assignment
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 8385 Division RD

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

  1. Allyson Aimers, FNPFamily Nurse Practitioner1689013864
  2. Whitney Bondshu, MSWClinical Social Worker1003278516
  3. Kecia Caldwell, MS, RD, LDNRegistered Dietitian1750073839
  4. Brittany Difani, PAPhysician Assistant1376911057
  5. Karen Elliot, LPCAMental Health Counselor1629779053
  6. Kourtni Faber, RDHDental Hygienist1023479201

Verify Tristan Stiles in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license PA189830
    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
Find the Oregon 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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2.7 times the Medicare Part D claims of the average physician assistant in 2024

2,224 Medicare Part D claims for 262 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 42 claims were for opioids.

  1. Tristan Stiles2,224
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium128 claims
  2. Lisinopril105 claims
  3. Levothyroxine Sodium97 claims
  4. Rosuvastatin Calcium96 claims
  5. Amlodipine Besylate82 claims
  6. Losartan Potassium82 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: $1,007.27

44 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tristan Stiles$1,007.27
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Asante Three Rivers Medical Center LLCGrants Pass, OR
  2. Rogue Valley PhysiciansMedford, OR
  3. Valley Immediate Care, LLCEagle Point, OR

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

Tristan Stiles among 2,094 physician assistant records in Oregon

Tristan Stiles, PA-C is one of 2,094 physician assistant records with a practice address in Oregon. 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 2013, is newer than 37% of them.

  • NPI issued2013 · 37% of these records are older, 60% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2013 · median 2017 among the 1,552 with a school on file
  • Record last updated2018 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6 physician assistant records list a practice address in White City

They are 6 of the 288 NPPES records with a practice address in White City, and 2,094 physician assistant records in Oregon.

The 8 physician assistant records with the nearest ZIP codes

  1. Brittany Difani, PAWhite City, OR 975031376911057
  2. Jacob Graves, PAWhite City, OR 975031033901483
  3. Rebecca Mickel, PA-CWhite City, OR 975031669154571
  4. Brielle Sheppeard, PA-CWhite City, OR 975031598460230
  5. Gregory Smiley, PAWhite City, OR 975031992871503
  6. Gregory Caldwell, P.A-CMedford, OR 975041023051190
  7. Micheline Cavallacci, PA-CMedford, OR 975041235113994
  8. Jason Gorsegner, PACentral Point, OR 975021467933481

Common questions

What is Tristan Stiles, PA-C's NPI number?

Tristan Stiles, PA-C's National Provider Identifier (NPI) is 1093143760, issued on Oct 16, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Tristan Stiles, PA-C located?

The NPPES record lists a practice address at 8385 Division RD, White City, OR, 97503. Phone: (541) 826-5853. Providers update this record themselves, so call before visiting.

How can I verify Tristan Stiles, PA-C's license?

NPPES lists Oregon license number PA189830, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Tristan Stiles, PA-C prescribe under Medicare Part D?

In 2024, Tristan Stiles, PA-C had 2,224 Medicare Part D claims for 262 beneficiaries; the average among physician assistant prescribers was 830. 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.