Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marissa Eileen Wyan, PA-C
Physician Assistant in Merced, CA · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528988714
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Registry record
Entity type Individual (Type 1)
Name Marissa Eileen Wyan
Credential PA-C
Sex Female
Practice address 847 W Childs Ave, Merced, CA, 95341
Phone (209) 722-4842
Enumeration date Jul 17, 2026
Last updated in NPPES Jul 17, 2026
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 68761 (CA) Primary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Marissa Wyan?
The National Provider Identifier (NPI) for Marissa Wyan is 1528988714, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marissa Wyan practice?
The practice location on file with NPPES is in Merced, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Golden Valley Health Centers Federally Qualified Health Center (FQHC) · Merced, CA NPI 1255339644 Robert Simenson Family Medicine Physician · Merced, CA NPI 1942283221 Jeannette Ayala Family Medicine Physician · Merced, CA NPI 1477536373 Bounlath Souksavong Medical Physician Assistant · Merced, CA NPI 1326021171 Cesar Garcia Clinical Social Worker · Merced, CA NPI 1033192596 Marcus Bernardi Chiropractor · Merced, CA NPI 1679581656 Anupam Khandelwal Family Medicine Physician · Merced, CA NPI 1932240710 Golden Valley Health Center Federally Qualified Health Center (FQHC) · Merced, CA NPI 1932324449
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-17.