Marielle Christina-Slothouber Colvin, MSN, FNP-C
Family Nurse Practitioner · Seattle, WA
Marielle Christina-Slothouber Colvin, MSN, FNP-C is a family nurse practitioner with a practice address in Seattle, Washington, and NPI 1538822994, issued on Oct 21, 2021. Check the license (Washington AP61227753, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marielle Christina-Slothouber Colvin
- Credential
- MSN, FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- AP61227753 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St., Seattle, WA 98195
- Phone
- (206) 520-5000
- Enumerated
- Oct 21, 2021
- Record last updated
- Sep 26, 2023
- Medicare enrollment
- Enrolled (PECOS I20211220001721); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,781 in Washington → Look up another NPI →
Also registered at 1959 NE Pacific St.
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marielle Christina-Slothouber Colvin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP61227753Check 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 nurse practitioner in 2024
182 Medicare Part D claims for 26 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Ursodiol11 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
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marielle Christina-Slothouber Colvin among 3,781 family nurse practitioner records in Washington
Marielle Christina-Slothouber Colvin, MSN, FNP-C is one of 3,781 family nurse practitioner records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 73% of them.
- NPI issued2021 · 73% of these records are older, 22% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2021 · median 2018 among the 2,116 with a school on file
- Record last updated2023 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
663 family nurse practitioner records list a practice address in Seattle
They are 663 of the 41,956 NPPES records with a practice address in Seattle, and 3,781 family nurse practitioner records in Washington.
All 3,781 in Washington → Every provider in Seattle → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Claudia Davis, ARNPSeattle, WA 981951376561621
- Kathleen Errico, ARNPSeattle, WA 981951588699102
- Rebecca Evans, ARNPSeattle, WA 981951316926108
- Lisa Goben, ARNPSeattle, WA 981951851325807
- Patricia Hardman, ARNPSeattle, WA 981951871511147
- Lynda Hillman, DNP, ARNPSeattle, WA 981951811979305
- Jean Kallhoff, ARNPSeattle, WA 981951780618736
- Anthony Mitchell, FNPSeattle, WA 981951679563977
Common questions
What is Marielle Christina-Slothouber Colvin, MSN, FNP-C's NPI number?
Marielle Christina-Slothouber Colvin, MSN, FNP-C's National Provider Identifier (NPI) is 1538822994, issued on Oct 21, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Marielle Christina-Slothouber Colvin, MSN, FNP-C located?
The NPPES record lists a practice address at 1959 NE Pacific St., Seattle, WA, 98195. Phone: (206) 520-5000. Providers update this record themselves, so call before visiting.
How can I verify Marielle Christina-Slothouber Colvin, MSN, FNP-C's license?
NPPES lists Washington license number AP61227753, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Marielle Christina-Slothouber Colvin, MSN, FNP-C prescribe under Medicare Part D?
In 2024, Marielle Christina-Slothouber Colvin, MSN, FNP-C had 182 Medicare Part D claims for 26 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.