Ruben Joseph Marchosky, DO
Emergency Medicine Physician · Longview, WA
Ruben Joseph Marchosky, DO is an emergency medicine physician with a practice address in Longview, Washington, and NPI 1083358824, issued on Apr 27, 2022. Check the license (Washington OP61680475, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Ruben Joseph Marchosky
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- OP61680475 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1615 Delaware St, Longview, WA 98632
- Phone
- (360) 514-2000
- Enumerated
- Apr 27, 2022
- Record last updated
- Aug 29, 2025
- Medicare enrollment
- Enrolled (PECOS I20251103003157); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,459 in Washington → Look up another NPI →
Also registered at 1615 Delaware St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shawn Aaron, MDFamily Medicine Physician1578560710
- Basim Ali, M.B.B.SGastroenterology Physician1467081521
- Pamela AlwineNurse's Aide1780120089
- Lance Amols, M.D.Psychiatry Physician1780978304
- Brock Amos, CRNACertified Registered Nurse Anesthetist1295807717
- Kurt Anderson, PHARMDGeriatric Pharmacist1790231280
Verify Ruben Joseph Marchosky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP61680475Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average emergency medicine physician in 2024
41 Medicare Part D claims for 25 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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
- Cep America LLCLongview, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ruben Joseph Marchosky among 1,459 emergency medicine physician records in Washington
Ruben Joseph Marchosky, DO is one of 1,459 emergency medicine physician records with a practice address in Washington. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 96% of them.
- NPI issued2022 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2021 · median 2010 among the 851 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Washington
There are 1,459 emergency medicine physician records in Washington.
All 1,459 in Washington → Every provider in Longview → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Ryan Caulfield, DOLongview, WA 986321174901714
- Dennis Ford, MDLongview, WA 986321891735791
- John Gibson, M.DLongview, WA 986321720288681
- Rusty Gust, D.O.Longview, WA 986321194044701
- Glenn Heimburger, M.D.Longview, WA 986321740500347
- John Kim, DOLongview, WA 986321114288560
- Marc Kranz, MDLongview, WA 986321891745881
- Theodore Leslie, MDLongview, WA 986321477593366
Common questions
What is Ruben Joseph Marchosky, DO's NPI number?
Ruben Joseph Marchosky, DO's National Provider Identifier (NPI) is 1083358824, issued on Apr 27, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Ruben Joseph Marchosky, DO located?
The NPPES record lists a practice address at 1615 Delaware St, Longview, WA, 98632. Phone: (360) 514-2000. Providers update this record themselves, so call before visiting.
How can I verify Ruben Joseph Marchosky, DO's license?
NPPES lists Washington license number OP61680475, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ruben Joseph Marchosky, DO prescribe under Medicare Part D?
In 2024, Ruben Joseph Marchosky, DO had 41 Medicare Part D claims for 25 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.