Joshua Gewirtz
Physician Assistant · Brewster, WA
Joshua Gewirtz is a physician assistant with a practice address in Brewster, Washington, and NPI 1285018341, issued on Jul 17, 2015. Check the license with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joshua Gewirtz
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 418 West Main Ave, Brewster, WA 98812
- Phone
- (509) 663-8711
- Enumerated
- Jul 17, 2015
- Record last updated
- Dec 22, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 1285018341 WA
- Medicare enrollment
- Enrolled (PECOS I20151001002457); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,718 in Washington → Look up another NPI →
Also registered at 418 West Main Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Molly Hogan, MDDermatology Physician1255417051
Verify Joshua Gewirtz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average physician assistant in 2024
179 Medicare Part D claims for 71 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium14 claims
- Amlodipine Besylate13 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
- Okanogan County Public Hospital District NO. 3Omak, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joshua Gewirtz among 3,718 physician assistant records in Washington
Joshua Gewirtz 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 2015, is newer than 49% of them.
- NPI issued2015 · 49% of these records are older, 47% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2005 · median 2017 among the 2,460 with a school on file
- Record last updated2015 · 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).
4 physician assistant records list a practice address in Brewster
They are 4 of the 70 NPPES records with a practice address in Brewster, and 3,718 physician assistant records in Washington.
All 3,718 in Washington → Every provider in Brewster → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Ross Brown, PABrewster, WA 988121346623501
- Mary Downey, PA-CBrewster, WA 988121821492547
- Heidee Hanson, PA-CBrewster, WA 988121336312495
- Dominic DephillipsChelan, WA 988161780353813
- Guadalupe Martinez VeraChelan, WA 988161477275030
- Carolina Martinez Vera, PAChelan, WA 988161124980594
- Jacquelyn TaylorChelan, WA 988161972315299
- Christopher Campbell, PA-CE Wenatchee, WA 988021326233933
Common questions
What is Joshua Gewirtz's NPI number?
Joshua Gewirtz's National Provider Identifier (NPI) is 1285018341, issued on Jul 17, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Joshua Gewirtz located?
The NPPES record lists a practice address at 418 West Main Ave, Brewster, WA, 98812. Phone: (509) 663-8711. Providers update this record themselves, so call before visiting.
How can I verify Joshua Gewirtz's license?
Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Joshua Gewirtz prescribe under Medicare Part D?
In 2024, Joshua Gewirtz had 179 Medicare Part D claims for 71 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.