Dr. Guy Gen Ito, PHARMD.
Dr. Guy Gen Ito is a Pharmacist provider (Pharmacist) practicing in Fontana, CA, registered in the NPPES registry with NPI 1588758361 since 2006. The credential PHARMD stands for Doctor of Pharmacy.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1588758361 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Guy Gen Ito |
| Credential | PHARMD. |
| Sex | Male |
| Practice address | 9961 SIERRA AVE, BUILDING 3-B, Fontana, CA, 92335 |
| Phone | 9094275719 |
| Fax | 9094274248 |
| Enumeration date | 2006-10-03 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 183500000X | Pharmacist | Primary | PHY 36695 | CA |
PHARMD — Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD credential
Copy-ready billing details
Provider: Guy Ito, PHARMD. NPI: 1588758361 Taxonomy: 183500000X (Pharmacist) Address: 9961 SIERRA AVE, BUILDING 3-B, Fontana, CA, 92335
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1851395313 | Khosro Iromloo | Individual | Specialist | Fontana, CA |
| 1578560199 | Barbara Mahoney | Individual | Adult Health Nurse Practitioner | Fontana, CA |
| 1932106697 | Terry Skok | Individual | Acute Care Nurse Practitioner | Fontana, CA |
| 1255331203 | David Whitaker | Individual | Emergency Medicine Physician | Fontana, CA |
| 1386628402 | Timothy Mccarter | Individual | Gastroenterology Physician | Fontana, CA |
| 1205811007 | Nancy Svitek | Individual | Emergency Medicine Physician | Fontana, CA |
| 1942286661 | Samuel Ahn | Individual | Vascular & Interventional Radiology Physician | Fontana, CA |
| 1386612299 | Christine Carlson | Individual | Family Medicine Physician | Fontana, CA |
Verify this record
Cross-check NPI 1588758361 against the authoritative CMS record: view Dr. Guy Gen Ito on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
Is NPI 1588758361 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.