Michael Marshall, APRN, PMHNP
Psychiatric/Mental Health Nurse Practitioner · Ontario, CA
Michael Marshall, APRN, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in Ontario, California, and NPI 1245563543, issued on Sep 17, 2009. Check the license (California 95028122, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Marshall
- Credential
- APRN, PMHNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- 95028122 CA
679231 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3200 E Guasti RD, Ontario, CA 91761
- Phone
- (909) 755-6610
- Enumerated
- Sep 17, 2009
- Record last updated
- Feb 24, 2026
- Fax
- (909) 385-3335
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 4,226 in California → Look up another NPI →
Also registered at 3200 E Guasti RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95028122Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
50 Medicare Part D claims, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $278.85
11 payments; by number, the most common kind was food and beverage; the largest payer was Bausch Health US, LLC. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Michael Marshall among 4,226 psychiatric/mental health nurse practitioner records in California
Michael Marshall, APRN, PMHNP is one of 4,226 psychiatric/mental health nurse practitioner records with a practice address in California. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 9% of them.
- NPI issued2009 · 9% of these records are older, 90% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · 46% of these records are
- Record last updated2026 · 16% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in California
There are 4,226 psychiatric/mental health nurse practitioner records in California.
All 4,226 in California → Every provider in Ontario → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Chidi AkubugaliOntario, CA 917611316657414
- Marianna Chavez, NPOntario, CA 917611932981867
- Tameka Dyce, PMHNPOntario, CA 917611851019640
- Danica Flores, PMHNP-BCOntario, CA 917611407700131
- Li-Yun Ma, PMHNP-BCOntario, CA 917611205783784
- Patricia OgudeOntario, CA 917611407318355
- Gryan GarciaOntario, CA 917621578103800
- Gerrald Angeles, NPMontclair, CA 917631235641986
Common questions
What is Michael Marshall, APRN, PMHNP's NPI number?
Michael Marshall, APRN, PMHNP's National Provider Identifier (NPI) is 1245563543, issued on Sep 17, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Michael Marshall, APRN, PMHNP located?
The NPPES record lists a practice address at 3200 E Guasti RD, Ontario, CA, 91761. Phone: (909) 755-6610. Providers update this record themselves, so call before visiting.
How can I verify Michael Marshall, APRN, PMHNP's license?
NPPES lists California license number 95028122, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Michael Marshall, APRN, PMHNP prescribe under Medicare Part D?
In 2024, Michael Marshall, APRN, PMHNP had 50 Medicare Part D claims; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.