npidata.org Sign in
Products
Provider RadarWatch an area and specialty — weekly alerts on new cliniciansPractice RadarWeekly alerts when new organisations register nearbySpecialtiesEvery NUCC taxonomy, with counts by state and cityStatesProvider counts and breakdowns for all 50 statesPhysician listsMDs and DOs with addresses and phone numbersNP listsNurse practitioners, the fastest-growing groupAPIJSON, delta feed, free tier
Use cases
Healthcare sales prospectingPhysician recruiting and locum staffingMedical device sales territory planningCredentialing and provider verificationHealthcare marketing lists and audience buildingPharmaceutical sales and prescriber targeting
Account
Start freeThree radars and an export a month Sign in Pricing
Explore
Data Labs API
About
About usTermsPrivacyContact us

Search › California › Psychiatric/Mental Health Nurse Practitioner

Michael Marshall, APRN, PMHNP

NPI 1245563543 · on the registry since 2009

Practice

Address
3200 E Guasti Rd
Ontario, CA 91761
Phone
(909) 755-6610
Fax
(909) 385-3335
Organisation at this address
Elena Davis
Qualityambitions
Savvy Speech, Inc
Resp-A-Sure, Inc.
Aero Mobility, Inc.
Inferred from a shared address, not stated in the registry.
Clinicians at this address
134

Additional practice sites

  • 14677 Merrill Ave, Fontana, CA

Registry record

Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner
363LP0808X
Also registered as
163W00000X
Licence states on file
CA
From the registry's licence fields, which are often incomplete.
Sex
Male
Record last updated
2026-02-24

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in California