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MR. STANLEY FERNANDO MESEN PMHNP
NPI 1851084727
Nurse Practitioner - Psychiatric/Mental Health in San Jose, CA

Active since May 29, 2023PECOS Enrolled
99 ALMADEN BLVD STE 600, SAN JOSE, CA 95113(256) 500-8688(855) 670-7900 Get Directions Write a Review

NPPES record last updated: April 25, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 25, 2026, May 7, 2024, Jul 5, 2023 and 1 more (4 updates tracked since 2023).

About Mr. Stanley Fernando Mesen Pmhnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. STANLEY FERNANDO MESEN PMHNP (NPI 1851084727) is an individual psychiatric/mental health provider in San Jose, California, licensed in California (95025013) and active in the NPI registry since May 2023. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851084727
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameMR. STANLEY FERNANDO MESENCredential: PMHNP
Location Address99 ALMADEN BLVD STE 600San Jose, CA 95113-1605
Mailing Address5228 Vantage Ave Apt 5Valley Village, CA 91607-5017 · (323) 304-9855
Phone(256) 500-8688
Fax(855) 670-7900
Sole ProprietorNo
Enumeration DateMay 29, 2023
Last NPPES UpdateApril 25, 20264 updates tracked since enumeration
NPPES CertifiedApril 25, 2026
✔ NPI 1851084727 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in CA · 95025013
99 ALMADEN BLVD STE 600, San Jose, CA 95113
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Stanley Fernando Mesen Pmhnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Stanley Mesen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

New U Therapy Center & Family Services Inc.
273 mi
Marriage & Family Therapist
25000 AVENUE STANFORD STE 167
Valencia, CA 91355
  • Reassigned Medicare billing, California enrollment
  • 33 clinicians in this Medicare group
NPI 1568821692 (818) 600-2034
Ehab Yacoub MD Inc.
314 mi
Child & Adolescent Psychiatry
1225 W 190TH ST STE 280
Gardena, CA 90248
  • Reassigned Medicare billing, California enrollment
  • 375 clinicians in this Medicare group
NPI 1417373713 (310) 515-8113

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95113 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$106.47 typical visit price
range $70.37 – $206.04
Typical copayment $26.61 (range $17.59 – $51.51)
Most-billed visit code 99203
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

VECTOR REMOTE CARE, LLC
Physiological Laboratory
99 ALMADEN BLVD STE 600
SAN JOSE, CA 95113
Santa Clara County (408) 414-7714
SAW LEGACIES INC
Non-emergency Medical Transport (VAN)
99 ALMADEN BLVD STE 600
SAN JOSE, CA 95113
Santa Clara County (612) 296-0239
MR. PETER A. PALOMO JR.
Behavior Technician
99 ALMADEN BLVD STE 600
SAN JOSE, CA 95113
Santa Clara County (888) 331-2181
MAZON COOPER
Behavior Technician
99 ALMADEN BLVD STE 600
SAN JOSE, CA 95113
Santa Clara County (855) 581-0100
HEALTHDRIVE MEDICAL SERVICES OF CALIFORNIA, LLC
Nurse Practitioner
99 ALMADEN BLVD STE 600
SAN JOSE, CA 95113
Santa Clara County (888) 964-6681
SOWMYA VINJAMURI
Behavior Analyst
99 ALMADEN BLVD STE 600
SAN JOSE, CA 95113
Santa Clara County (479) 282-1506
MICAELA BAUTISTA
Behavior Technician
99 ALMADEN BLVD STE 600
SAN JOSE, CA 95113
Santa Clara County (888) 331-2181
STEPHANIE ALISE FAZZARE
Behavior Technician
99 ALMADEN BLVD STE 600
SAN JOSE, CA 95113
Santa Clara County (888) 833-2181

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stanley Mesen's NPI number?

The NPI number for Stanley Mesen is 1851084727. It was assigned to this individual provider in the NPPES registry on May 29, 2023.

Where is Stanley Mesen located?

Stanley Mesen practices at 99 Almaden Blvd Ste 600, San Jose, CA 95113. The listed phone number is (256) 500-8688.

What is Stanley Mesen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Stanley Mesen enrolled in Medicare?

Yes. Stanley Mesen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Stanley Mesen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stanley Mesen reassigns Medicare benefits to 2 organizations: New U Therapy Center & Family Services Inc. (Valencia, CA) and Ehab Yacoub MD Inc. (Gardena, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stanley Mesen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Stanley Mesen was last updated on April 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.