NPPES file of Aug 9, 2026

Trey Spencer Petersen, PA-C

Physician Assistant · Moses Lake, WA

Trey Spencer Petersen, PA-C is a physician assistant with a practice address in Moses Lake, Washington, and NPI 1659198281, issued on Sep 24, 2024. Check the license with the Washington 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
1659198281
Name
Trey Spencer Petersen
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
Practice location
605 S Coolidge St, Moses Lake, WA 98837
Phone
(509) 765-0674
Enumerated
Sep 24, 2024
Record last updated
Sep 24, 2024
Medicare enrollment
Enrolled (PECOS I20241126003709); 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 605 S Coolidge St

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

  1. Mary Aardal, R.D.Registered Dietitian1659570489
  2. Melissa Almond, PA-CPhysician Assistant1770093304
  3. Tyson AndelinPhysician Assistant1508343732
  4. Sandy Anderson, DHDental Hygienist1235320763
  5. Eric Aronsohn, PA-CMedical Physician Assistant1336229152
  6. Julia Austin, RNCase Manager/Care Coordinator1760669527

Verify Trey Spencer Petersen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington 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
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99% fewer Medicare Part D claims than the average physician assistant in 2024

12 Medicare Part D claims, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Trey Petersen12
  2. Specialty average830

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. Moses Lake Community Health CenterMoses Lake, WA

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

Trey Spencer Petersen among 3,718 physician assistant records in Washington

Trey Spencer Petersen, PA-C is one of 3,718 physician assistant records with a practice address in Washington. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 92% of them.

  • NPI issued2024 · 92% of these records are older, 4% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2024 · median 2017 among the 2,460 with a school on file
  • Record last updated2024 · 48% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

30 physician assistant records list a practice address in Moses Lake

They are 30 of the 901 NPPES records with a practice address in Moses Lake, and 3,718 physician assistant records in Washington.

The 8 physician assistant records with the nearest ZIP codes

  1. Melissa Almond, PA-CMoses Lake, WA 988371770093304
  2. Frank Beck, PA-CMoses Lake, WA 988371548647266
  3. Angela Hanson-Steen, PA-CMoses Lake, WA 988371689818270
  4. Jonathan Henke, PAC, MPHMoses Lake, WA 988371326005646
  5. Brett HymasMoses Lake, WA 988371801297932
  6. Robert Mikiska, PA-CMoses Lake, WA 988371659383842
  7. Corbin MobergMoses Lake, WA 988371205198454
  8. Paula Moreno, P.A.Moses Lake, WA 988371881642197

Common questions

What is Trey Spencer Petersen, PA-C's NPI number?

Trey Spencer Petersen, PA-C's National Provider Identifier (NPI) is 1659198281, issued on Sep 24, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Trey Spencer Petersen, PA-C located?

The NPPES record lists a practice address at 605 S Coolidge St, Moses Lake, WA, 98837. Phone: (509) 765-0674. Providers update this record themselves, so call before visiting.

How can I verify Trey Spencer Petersen, PA-C's license?

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

How much does Trey Spencer Petersen, PA-C prescribe under Medicare Part D?

In 2024, Trey Spencer Petersen, PA-C had 12 Medicare Part D claims; 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.