Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

MS. Mariya Alder, NP

Individual provider Nurse Practitioner · NPI 1518334465

MS. Mariya Alder, NP is a Nurse Practitioner in Grass Valley, California. Qualified in 2015, 11 years ago. Practices with Grass Valley Radiation Oncology, a 5-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
11
Licensed in
CA
In the registry since
2015
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

300 Sierra College Dr Ste 150
Grass Valley, CA 95945-5083
Phone: (530) 274-6600
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 155 Glasson Way Bldg 3l-20, Grass Valley, CA 95945-5723 — (530) 274-6600
  • 2279 45th St Fl 2, Sacramento, CA 95817-1514 — (916) 734-5959

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 95002925 (CA)

Record details

NPI number1518334465
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedAugust 26, 2015
Last updated in NPPESAugust 27, 2025
Certification dateAugust 27, 2025
Mailing addressPo Box 24132, Seattle, WA 98124-0132

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Grass Valley Radiation Oncology — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in Grass Valley