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Ms. Mariya Alder, NP

Nurse Practitioner in Grass Valley, CA · enumerated 2015 · practices at Grass Valley Radiation Oncology.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1518334465

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Registry record

Entity type Individual (Type 1)
Name Ms. Mariya Alder
Credential NP
Sex Female
Practice address 300 Sierra College Dr Ste 150, Grass Valley, CA, 95945
Phone (530) 274-6600
Enumeration date Aug 26, 2015
Last updated in NPPES Aug 27, 2025

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95002925 (CA) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

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.

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Frequently asked questions

Where does Mariya Alder practice?
The practice location on file with NPPES is in Grass Valley, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mariya Alder?
The National Provider Identifier (NPI) for Mariya Alder is 1518334465, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-27.