Robert Alan Bessler, P.A.
Robert Alan Bessler is a Physician Assistant provider (Physician Assistant) practicing in Riverside, CA, registered in the NPPES registry with NPI 1609803907 since 2006. The credential PA stands for Physician Assistant.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1609803907 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Robert Alan Bessler |
| Credential | P.A. |
| Sex | Male |
| Practice address | Riverside, CA, 92503 |
| Phone | 9513525666 |
| Fax | 9513525445 |
| Enumeration date | 2006-06-26 |
| Last updated in NPPES | 2008-06-12 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 363A00000X | Physician Assistant | Primary | PA12853 | CA |
PA — Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| PA12853 | Medicaid | CA | — |
Copy-ready billing details
Provider: Robert Bessler, P.A. NPI: 1609803907 Taxonomy: 363A00000X (Physician Assistant) Address: Riverside, CA, 92503
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1225038953 | Parkview Community Hospital Medical Center | Organization | General Acute Care Hospital | Riverside, CA |
| 1023092541 | Renaissance Radiology Medical Group, Inc. | Organization | Diagnostic Radiology Physician | Riverside, CA |
| 1316916810 | Magnolia Pathology Medical Group, Inc. | Organization | Anatomic Pathology & Clinical Pathology Physician | Riverside, CA |
| 1023052545 | Chad Clark | Individual | Emergency Medicine Physician | Riverside, CA |
| 1639114259 | Elvia Orrillo | Individual | Emergency Medicine Physician | Riverside, CA |
| 1972539039 | Riverside Emergency Physicians Medical Group | Organization | Emergency Medicine Physician | Riverside, CA |
| 1831125376 | Julius Ibanez | Individual | Emergency Medicine Physician | Riverside, CA |
| 1457380784 | Michael Ratter | Individual | Emergency Medicine Physician | Riverside, CA |
Verify this record
Cross-check NPI 1609803907 against the authoritative CMS record: view Robert Alan Bessler 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 1609803907 active?
How do I verify Robert Bessler's NPI record?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-06-12.