Cassedy McCright Mahrer Owen, D.O.
Internal Medicine Physician · Silverdale, WA
Cassedy McCright Mahrer Owen, D.O. is an internal medicine physician with a practice address in Silverdale, Washington, and NPI 1053775742, issued on Apr 8, 2016. Check the license (Washington OP61046548, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Cassedy McCright Mahrer Owen
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OP61046548 WA
Self-reported in NPPES; status is on the state search - Practice location
- 10452 Silverdale Way NW, Silverdale, WA 98383
- Phone
- (360) 307-7300
- Enumerated
- Apr 8, 2016
- Record last updated
- Oct 26, 2023
- Fax
- (877) 777-9902
- Medicaid ID
- 1053775742 WA
- Medicare enrollment
- Enrolled (PECOS I20200611000980); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 10452 Silverdale Way NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Peter Barkett, M.D.Internal Medicine Physician1891086252
- Carrielyn Bays, P.A.Physician Assistant1699828376
- Joe Bennett, MDEmergency Medicine Physician1053769893
- Anne Blankenheim, PA-CMedical Physician Assistant1699087866
- Janet Boltwood, LICSWClinical Social Worker1306238431
Verify Cassedy McCright Mahrer Owen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP61046548Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average internal medicine physician in 2024
887 Medicare Part D claims for 134 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium50 claims
- Levothyroxine Sodium48 claims
- Atorvastatin Calcium45 claims
- Amlodipine Besylate40 claims
- Furosemide30 claims
- Gabapentin28 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.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF WashingtonSilverdale, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cassedy McCright Mahrer Owen among 3,079 internal medicine physician records in Washington
Cassedy McCright Mahrer Owen, D.O. is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2016 · median 2006 among the 1,852 with a school on file
- Record last updated2023 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
16 internal medicine physician records list a practice address in Silverdale
They are 16 of the 1,305 NPPES records with a practice address in Silverdale, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Silverdale → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Marissa Anderson-Chernishof, M.D., M.S.Silverdale, WA 983831235549957
- Peter Barkett, M.D.Silverdale, WA 983831891086252
- Laurence Brostoff, M.D.Silverdale, WA 983831255498507
- Ana Marie Digao, MDSilverdale, WA 983831871783860
- Sara GirSilverdale, WA 983831184251050
- William Hall, M.D.Silverdale, WA 983831134199961
- Amado Katigbak, M.D.Silverdale, WA 983831538227939
- Joel Martin, M.D.Silverdale, WA 983831629093521
Common questions
What is Cassedy McCright Mahrer Owen, D.O.'s NPI number?
Cassedy McCright Mahrer Owen, D.O.'s National Provider Identifier (NPI) is 1053775742, issued on Apr 8, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Cassedy McCright Mahrer Owen, D.O. located?
The NPPES record lists a practice address at 10452 Silverdale Way NW, Silverdale, WA, 98383. Phone: (360) 307-7300. Providers update this record themselves, so call before visiting.
How can I verify Cassedy McCright Mahrer Owen, D.O.'s license?
NPPES lists Washington license number OP61046548, 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 Cassedy McCright Mahrer Owen, D.O. prescribe under Medicare Part D?
In 2024, Cassedy McCright Mahrer Owen, D.O. had 887 Medicare Part D claims for 134 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Cassedy McCright Mahrer Owen, D.O.'s MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.