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

Mary Nganga, NP

Individual provider Primary Care Nurse Practitioner · NPI 1578920880

Mary Nganga, NP is a Nurse Practitioner in San Mateo, California. Qualified in 2015, 11 years ago. Practices with Impact Medical Associates California, a 4-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
2016
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

1875 S Grant St Ste 760
San Mateo, CA 94402-2670
Phone: (888) 227-8884
Show map & directions

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

Additional practice locations (2)

  • 488 E Santa Clara St, Arcadia, CA 91006-7229 — (626) 588-8713
  • 14141 Southwest Fwy Ste 500, Sugar Land, TX 77478-3494 — (281) 356-0364

Specialties & licences

Primary Care Nurse Practitioner (primary) Taxonomy 363LP2300X · Licence 95003460 (CA)

Record details

NPI number1578920880
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJanuary 19, 2016
Last updated in NPPESNovember 5, 2025
Certification dateNovember 5, 2025

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 Impact Medical Associates California — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

Other providers in San Mateo