Cathlyn Skerlong Klassen, MD
Family Medicine Physician · Everett, WA
Cathlyn Skerlong Klassen, MD is a family medicine physician with a practice address in Everett, Washington, and NPI 1821157025, issued on Dec 6, 2006. Check the license (Washington MD00033057, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Cathlyn Skerlong Klassen
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD00033057 WA
Self-reported in NPPES; status is on the state search - Practice location
- 12800 Bothell Everett Hwy, Everett, WA 98208
- Phone
- (425) 316-5180
- Enumerated
- Dec 6, 2006
- Record last updated
- Mar 7, 2023
- Medicaid ID
- 8189318 WA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 12800 Bothell Everett Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Bass, M. D.Family Medicine Physician1518963404
- George Beck, MDPediatrics Physician1841390929
- Earl Beegle, MDFamily Medicine Physician1407956568
Verify Cathlyn Skerlong Klassen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00033057Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family medicine physician in 2024
504 Medicare Part D claims for 38 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Risperidone28 claims
- Famotidine23 claims
- Divalproex Sodium22 claims
- Levothyroxine Sodium18 claims
- Ziprasidone Hcl18 claims
- Fluoxetine Hcl16 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.
Cathlyn Skerlong Klassen among 5,534 family medicine physician records in Washington
Cathlyn Skerlong Klassen, MD is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2023 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
195 family medicine physician records list a practice address in Everett
They are 195 of the 7,246 NPPES records with a practice address in Everett, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Everett → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Clinton Anderson, MDEverett, WA 982081134106867
- James Bass, M. D.Everett, WA 982081518963404
- Susan CarterEverett, WA 982081649248261
- Alan CarterEverett, WA 982081083682603
- Thomas Clarkson, M.D.Everett, WA 982081265454847
- Donald Ebersole, MDEverett, WA 982081932179587
- Randall Gould, M.D.Everett, WA 982081780602714
- Arnold Heng, DOEverett, WA 982081023086659
Common questions
What is Cathlyn Skerlong Klassen, MD's NPI number?
Cathlyn Skerlong Klassen, MD's National Provider Identifier (NPI) is 1821157025, issued on Dec 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cathlyn Skerlong Klassen, MD located?
The NPPES record lists a practice address at 12800 Bothell Everett Hwy, Everett, WA, 98208. Phone: (425) 316-5180. Providers update this record themselves, so call before visiting.
How can I verify Cathlyn Skerlong Klassen, MD's license?
NPPES lists Washington license number MD00033057, 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 Cathlyn Skerlong Klassen, MD prescribe under Medicare Part D?
In 2024, Cathlyn Skerlong Klassen, MD had 504 Medicare Part D claims for 38 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.