Alessa L. Lopez-Castor, FNP-C
Nurse Practitioner · Tulalip, WA
Alessa L. Lopez-Castor, FNP-C is a nurse practitioner with a practice address in Tulalip, Washington, and NPI 1285661744, issued on Jun 28, 2006. Check the license (Washington AP60420859, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alessa L. Lopez-Castor
- Credential
- FNP-C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- AP60420859 WA
Self-reported in NPPES; status is on the state search - Practice location
- 6330 31St Ave NE Ste 101, Tulalip, WA 98271
- Phone
- (360) 716-2200
- Enumerated
- Jun 28, 2006
- Record last updated
- Jul 18, 2023
- Fax
- (360) 716-2211
- Medicaid IDs
- 80693310 ID
2035703 WA - Medicare enrollment
- Enrolled (PECOS I20260112003394); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 2,308 in Washington → Look up another NPI →
Also registered at 6330 31St Ave NE Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alessa L. Lopez-Castor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP60420859Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average nurse practitioner in 2024
26 Medicare Part D claims for 11 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
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 2 group practices
- Boulder Care Provider Group PAPortland, OR
- Providence Health And Services-WAEverett, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alessa L. Lopez-Castor among 2,308 nurse practitioner records in Washington
Alessa L. Lopez-Castor, FNP-C is one of 2,308 nurse practitioner records with a practice address in Washington. 72% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 78% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2004 · median 2018 among the 1,301 with a school on file
- Record last updated2023 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 nurse practitioner record lists a practice address in Tulalip
They are 1 of the 124 NPPES records with a practice address in Tulalip, and 2,308 nurse practitioner records in Washington.
All 2,308 in Washington → Every provider in Tulalip → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Justin Gill, ARNPMarysville, WA 982711174903603
- Jacqueline WahlMarysville, WA 982711437774338
- Jessica Woodard, NP-CMarysville, WA 982711952974024
- Maxwell Zamzow, ARNPMarysville, WA 982711326618281
- Joyce Burt, ARNPMarysville, WA 982701336393222
- Cindy Catlin, ARNPMonroe, WA 982721881140796
- Carole Clark, ARNPMarysville, WA 982701710056882
- Kelly Dale, ARNPMarysville, WA 982701770653784
Common questions
What is Alessa L. Lopez-Castor, FNP-C's NPI number?
Alessa L. Lopez-Castor, FNP-C's National Provider Identifier (NPI) is 1285661744, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alessa L. Lopez-Castor, FNP-C located?
The NPPES record lists a practice address at 6330 31St Ave NE Ste 101, Tulalip, WA, 98271. Phone: (360) 716-2200. Providers update this record themselves, so call before visiting.
How can I verify Alessa L. Lopez-Castor, FNP-C's license?
NPPES lists Washington license number AP60420859, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Alessa L. Lopez-Castor, FNP-C prescribe under Medicare Part D?
In 2024, Alessa L. Lopez-Castor, FNP-C had 26 Medicare Part D claims for 11 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.