NPPES file of Aug 9, 2026

Stanley Fernando Mesen, PMHNP

Psychiatric/Mental Health Nurse Practitioner · San Jose, CA

Stanley Fernando Mesen, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in San Jose, California, and NPI 1851084727, issued on May 29, 2023. Check the license (California 95025013, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851084727
Name
Stanley Fernando Mesen
Credential
PMHNP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
95025013 CA
Self-reported in NPPES; status is on the state search
Practice location
99 Almaden Blvd Ste 600, San Jose, CA 95113
Phone
(256) 500-8688
Enumerated
May 29, 2023
Record last updated
Apr 25, 2026
Fax
(855) 670-7900
Medicare enrollment
Enrolled (PECOS I20230620002100); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 99 Almaden Blvd Ste 600

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nathaniel Altavas, MSN, PMHNP-BC, FNP-CFamily Nurse Practitioner1790167146
  2. Eden ArnoldBehavior Technician1588554935
  3. Deneen Asuncion, LCSWClinical Social Worker1235216409
  4. Dana Barajas, LCSWClinical Social Worker1619251881
  5. Micaela BautistaBehavior Technician1083425649
  6. Carmen CarmonaBehavior Technician1184362840

Verify Stanley Fernando Mesen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 95025013
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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98% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

21 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.

  1. Stanley Mesen21
  2. Specialty average906

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.

Bills Medicare through one group practice

  1. New U Therapy Center And Family Services IncValencia, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stanley Fernando Mesen among 4,226 psychiatric/mental health nurse practitioner records in California

Stanley Fernando Mesen, 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 2023, is newer than 62% of them.

  • NPI issued2023 · 62% of these records are older, 28% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileYes · 46% of these records are
  • Graduated2022 · median 2021 among the 1,965 with a school on file
  • 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.

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Stephanie AnyanwuSan Jose, CA 951131275303927
  2. Angela Cooper, PMHNPSan Jose, CA 951131770224859
  3. Christian Durand, PMHNP-BC, RNSan Jose, CA 951131023990165
  4. Alan Le, NPSan Jose, CA 951131891356671
  5. Stephen RoweSan Jose, CA 951131922710888
  6. Diane RodriguezSan Jose, CA 951121205648904
  7. Tammy Francis, C-FNP, PMHNP-BCSan Jose, CA 951101992121479
  8. Constance Hill, PHD, RNSan Jose, CA 951101346910932

Common questions

What is Stanley Fernando Mesen, PMHNP's NPI number?

Stanley Fernando Mesen, PMHNP's National Provider Identifier (NPI) is 1851084727, issued on May 29, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Stanley Fernando Mesen, PMHNP located?

The NPPES record lists a practice address at 99 Almaden Blvd Ste 600, San Jose, CA, 95113. Phone: (256) 500-8688. Providers update this record themselves, so call before visiting.

How can I verify Stanley Fernando Mesen, PMHNP's license?

NPPES lists California license number 95025013, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Stanley Fernando Mesen, PMHNP prescribe under Medicare Part D?

In 2024, Stanley Fernando Mesen, PMHNP had 21 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.