Mark A. Loesell, RPH
Pharmacist · Marysville, WA
Mark A. Loesell, RPH is a pharmacist with a practice address in Marysville, Washington, and NPI 1831492347, issued on Dec 6, 2010. Check the license (Washington PH00009838, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark A. Loesell
- Credential
- RPH
- Primary taxonomy
- Pharmacist 183500000X
- License number
- PH00009838 WA
Self-reported in NPPES; status is on the state search - Practice location
- 16616 Twin Lakes Ave, Marysville, WA 98271
- Phone
- (360) 652-4539
- Enumerated
- Dec 6, 2010
- Record last updated
- Dec 6, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (360) 652-4536
- Entity
- Type 1 · individual
Also registered at 16616 Twin Lakes Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Heilman, RPHPharmacist1902109408
- Kelsey Snyder, PHARMDPharmacist1467051847
Verify Mark A. Loesell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PH00009838Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average pharmacist in 2024
13 Medicare Part D claims for 12 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% 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.
45 pharmacist records list a practice address in Marysville
They are 45 of the 874 NPPES records with a practice address in Marysville, and 7,777 pharmacist records in Washington.
All 45 in Marysville → All 7,777 in Washington → Every provider in Marysville →
Other pharmacist records in Washington
- Steven AahlBothell, WA1477691137
- Jon Aal, RPHOlympia, WA1457753212
- Kenric Aalund-NelsonBellingham, WA1033944996
- Rania Abaza, PHARMDVancouver, WA1699660258
- Roomi Abbas, RPHKenmore, WA1457293292
- Marvin Abbott, PHARMACISTOlympia, WA1053550384
- Doaa Abdelazeez, RPHLynden, WA1184153074
- John AbdelmalekAberdeen, WA1881985133
- Shorooq AbdelqaderSeattle, WA1528638889
- Khaled Abdelrazzak, RPHSeattle, WA1790097574
Common questions
What is Mark A. Loesell, RPH's NPI number?
Mark A. Loesell, RPH's National Provider Identifier (NPI) is 1831492347, issued on Dec 6, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Mark A. Loesell, RPH located?
The NPPES record lists a practice address at 16616 Twin Lakes Ave, Marysville, WA, 98271. Phone: (360) 652-4539. Providers update this record themselves, so call before visiting.
How can I verify Mark A. Loesell, RPH's license?
NPPES lists Washington license number PH00009838, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Mark A. Loesell, RPH prescribe under Medicare Part D?
In 2024, Mark A. Loesell, RPH had 13 Medicare Part D claims for 12 beneficiaries; the average among pharmacist prescribers was 119. 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.