NPPES file of Aug 9, 2026

Joshua Jason Montemayor, PA-C

Medical Physician Assistant · Monroe, WA

Joshua Jason Montemayor, PA-C is a medical physician assistant with a practice address in Monroe, Washington, and NPI 1346594280, issued on Oct 30, 2012. Check the license (Washington PA60315504, as entered in NPPES) 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
1346594280
Name
Joshua Jason Montemayor
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA60315504 WA
Self-reported in NPPES; status is on the state search
Practice location
19200 N Kelsey St, Monroe, WA 98272
Phone
(360) 794-4790
Enumerated
Oct 30, 2012
Record last updated
May 25, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
1346594280 WA
Medicare enrollment
Enrolled (PECOS I20130107000182); 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 19200 N Kelsey St

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

  1. Ingrid Acuna-Eaton, M.D.Family Medicine Physician1255438339
  2. Brittney Arakaki, PHARMDAmbulatory Care Pharmacist1831765288
  3. Rajni Aulakh, M.D.Psychiatry Physician1396034567
  4. Edward Bahk, D.O.Internal Medicine Physician1184812273
  5. Rhonda Bass, M. D.Family Medicine Physician1023014925
  6. Raul Brewster, PHARM.D.Pharmacist1821372111

Verify Joshua Jason Montemayor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license PA60315504
    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 Washington 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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71% fewer Medicare Part D claims than the average medical physician assistant in 2024

329 Medicare Part D claims for 223 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Joshua Montemayor329
  2. Specialty average1,148

Most prescribed

  1. Prednisone41 claims
  2. Doxycycline Hyclate29 claims
  3. Diclofenac Sodium25 claims
  4. Albuterol Sulfate Hfa18 claims
  5. Amoxicillin-Clavulanate Potass16 claims
  6. Azithromycin16 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. Providence Health And Services- WashingtonEverett, WA

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

Joshua Jason Montemayor among 1,068 medical physician assistant records in Washington

Joshua Jason Montemayor, PA-C is one of 1,068 medical physician assistant records with a practice address in Washington. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 61% of them.

  • NPI issued2012 · 61% of these records are older, 35% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 54% of these records are
  • Graduated2001 · median 2013 among the 581 with a school on file
  • Record last updated2021 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in Washington

There are 1,068 medical physician assistant records in Washington.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Patrick Barnes, PA-CMonroe, WA 982721821260118
  2. Christi Dahlgren, PA-CMonroe, WA 982721710302831
  3. Jacob Grillo, PA-CMonroe, WA 982721043612575
  4. Jennifer Ross, PA-CMonroe, WA 982721346760030
  5. Jennifer Utter, PA-CMonroe, WA 982721316149974
  6. Laura Grantham, PACMount Vernon, WA 982731609171347
  7. Megan Irwin, PA-CMount Vernon, WA 982731326309113
  8. Kristen Kafer, PA-CMarysville, WA 982711265673891

Common questions

What is Joshua Jason Montemayor, PA-C's NPI number?

Joshua Jason Montemayor, PA-C's National Provider Identifier (NPI) is 1346594280, issued on Oct 30, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Joshua Jason Montemayor, PA-C located?

The NPPES record lists a practice address at 19200 N Kelsey St, Monroe, WA, 98272. Phone: (360) 794-4790. Providers update this record themselves, so call before visiting.

How can I verify Joshua Jason Montemayor, PA-C's license?

NPPES lists Washington license number PA60315504, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Joshua Jason Montemayor, PA-C prescribe under Medicare Part D?

In 2024, Joshua Jason Montemayor, PA-C had 329 Medicare Part D claims for 223 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.