Marshall Roy Koon, PA-C
Marshall Roy Koon is a Medical Physician Assistant provider (Physician Assistant) practicing in Apple Valley, CA, registered in the NPPES registry with NPI 1982939302 since 2009.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1982939302 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Marshall Roy Koon |
| Credential | PA-C |
| Sex | Male |
| Practice address | 18300 US HIGHWAY 18, Apple Valley, CA, 92307 |
| Phone | 7602422311 |
| Enumeration date | 2009-10-04 |
| Last updated in NPPES | 2009-10-04 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 363AM0700X | Medical Physician Assistant | Primary | PA20578 | CA |
Copy-ready billing details
Provider: Marshall Koon, PA-C NPI: 1982939302 Taxonomy: 363AM0700X (Medical Physician Assistant) Address: 18300 US HIGHWAY 18, Apple Valley, CA, 92307
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1982605432 | Riverside Radiology Medical Group, Inc. | Organization | Diagnostic Radiology Physician | Apple Valley, CA |
| 1740274380 | Neil Johnson | Individual | Neurological Surgery Physician | Apple Valley, CA |
| 1124016589 | Michael Pesce | Individual | Anesthesiology Physician | Apple Valley, CA |
| 1902860513 | Melinda Labuguen | Individual | Anatomic Pathology & Clinical Pathology Physician | Apple Valley, CA |
| 1184663965 | Hospitalist Medicine Physicians of California, Inc | Organization | Internal Medicine Physician | Apple Valley, CA |
| 1174567978 | Cheri Lawler | Individual | Physician Assistant | Apple Valley, CA |
| 1659315729 | Kabir Ahmed | Individual | Anesthesiology Physician | Apple Valley, CA |
| 1427071281 | Claudia Hall | Individual | Family Nurse Practitioner | Apple Valley, CA |
Verify this record
Cross-check NPI 1982939302 against the authoritative CMS record: view Marshall Roy Koon 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
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2009-10-04.