NPPES file of Aug 9, 2026

Andrew Mark Tijerina

Physician Assistant · Grants Pass, OR

Andrew Mark Tijerina is a physician assistant with a practice address in Grants Pass, Oregon, and NPI 1619590221, issued on May 19, 2020. Check the license 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
1619590221
Name
Andrew Mark Tijerina
Primary taxonomy
Physician Assistant 363A00000X
Practice location
495 SW Ramsey Ave, Grants Pass, OR 97527
Phone
(541) 476-6644
Enumerated
May 19, 2020
Record last updated
Apr 29, 2022
Medicare enrollment
Enrolled (PECOS I20201002002323); 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 495 SW Ramsey Ave

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

  1. Thomas Brandes, MDInternal Medicine Physician1992700991
  2. Allie BrieskePhysician Assistant1104610237
  3. Erin ClarkPediatric Nurse Practitioner1770177941
  4. John Countiss, M.D.Internal Medicine Physician1144225921
  5. Sean Dunn, DPMFoot & Ankle Surgery Podiatrist1699001776
  6. Steven Eddy, FNPFamily Nurse Practitioner1235243007

Verify Andrew Mark Tijerina in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this professionCheck 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

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6.8 times the Medicare Part D claims of the average physician assistant in 2024

5,648 Medicare Part D claims for 769 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 340 claims were for opioids.

  1. Andrew Tijerina5,648
  2. Specialty average830

Most prescribed

  1. Levothyroxine Sodium312 claims
  2. Atorvastatin Calcium227 claims
  3. Omeprazole206 claims
  4. Losartan Potassium191 claims
  5. Gabapentin185 claims
  6. Lisinopril184 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: $107.65

2 payments; by number, the most common kind was food and beverage; the largest payer was ALK-Abello, Inc. 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. Andrew Tijerina$107.65
  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 one group practice

  1. Asante Physician PartnersGrants Pass, OR

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

Andrew Mark Tijerina among 2,094 physician assistant records in Oregon

Andrew Mark Tijerina 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 2020, is newer than 67% of them.

  • NPI issued2020 · 67% of these records are older, 28% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2020 · median 2017 among the 1,552 with a school on file
  • Record last updated2022 · 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).

42 physician assistant records list a practice address in Grants Pass

They are 42 of the 2,127 NPPES records with a practice address in Grants Pass, and 2,094 physician assistant records in Oregon.

The 8 physician assistant records with the nearest ZIP codes

  1. Brian Allen, PAGrants Pass, OR 975271124298617
  2. Michele Cambron, PA-CGrants Pass, OR 975271679939102
  3. Nancy Clark, PACGrants Pass, OR 975271891714960
  4. Joan Duncan, PA-CGrants Pass, OR 975271407947732
  5. Kenneth DurrantGrants Pass, OR 975271578952537
  6. Shelby Logan, PA-CGrants Pass, OR 975271619250826
  7. Benjamin Moss, PA-CGrants Pass, OR 975271134453418
  8. Jonathan Nordheim, PACGrants Pass, OR 975271386762912

Common questions

What is Andrew Mark Tijerina's NPI number?

Andrew Mark Tijerina's National Provider Identifier (NPI) is 1619590221, issued on May 19, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Andrew Mark Tijerina located?

The NPPES record lists a practice address at 495 SW Ramsey Ave, Grants Pass, OR, 97527. Phone: (541) 476-6644. Providers update this record themselves, so call before visiting.

How can I verify Andrew Mark Tijerina's license?

Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Andrew Mark Tijerina prescribe under Medicare Part D?

In 2024, Andrew Mark Tijerina had 5,648 Medicare Part D claims for 769 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.