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Active NPI 1255293395 Individual Practitioner Male Practitioner

Jonathan Lettieri , CPSS

Peer Specialist • Mather, CA

Professional Overview & Biography Verified Profile Summary

Jonathan Lettieri, CPSS is a registered healthcare professional specializing in Peer Specialist in Mather, CA. Practice services are available at 10535 HOSPITAL WAY under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

10535 Hospital Way

Mather, CA 956554200

Telephone 9168437000
Associated Practice Facility / Clinic
🏢 Va Mather Facility NPI 1437136066

Specialty Benchmarks & Practice Insights

Comparative analytics for Peer Specialist in Mather, CA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 10.5 Yrs
State Avg: 10.2 Yrs
Regional Practice Density
2 Specialists

Practicing in Mather, CA (4567 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2025-11-26
Peer Specialist Primary Specialty

NUCC Taxonomy Code: 175T00000X

Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Alayna Nguyen

Pharmacist

NPI 1003538505
NPI 1003898750

Doctor of Medicine (M.D.)

Brittney Reed

Nurse Practitioner

NPI 1023995446
Christina Eng

Pharmacist

NPI 1043866320
NPI 1053017293

Doctor of Pharmacy (Pharm.D.)

Jennifer Fouche , OTR, L

Occupational Therapist

NPI 1053511287

Occupational Therapist Registered, L

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active November 26, 2025

NPI status registered as active in NPPES database

📍
Updated Practice Location November 26, 2025

Registered at 10535 HOSPITAL WAY, MATHER, CA 956554200 (Tel: 9168437000)

📍
Updated Business Mailing Address November 26, 2025

Registered at 10535 HOSPITAL WAY, MATHER, CA 956554200 (Tel: 9165483114)

👤
Provider Name / Credentials Updated November 26, 2025

Recorded as JONATHAN LETTIERI, CPSS

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 26, 2025

Peer Specialist

🟢
Initial NPI Registration & Enumeration November 26, 2025

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1255293395
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: November 26, 2025
Last Update: November 26, 2025
Sole Proprietor: No

Mailing Address

10535 Hospital Way

Mather, CA 956554200

Phone: 9165483114

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.