Riverside Physician Services Inc
Riverside Physician Services Inc is a healthcare organization registered as Radiation Oncology Physician in Williamsburg, VA, holding Type 2 (organization) NPI 1801170741 since 2011. The authorized official on file is James Lesnick, Vice President.
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| NPI | 1801170741 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Riverside Physician Services Inc |
| Other name | <Unavail> |
| Parent organization | Riverside Physician Services Inc |
| Practice address | 3901 TREYBURN DR, SUITE B, Williamsburg, VA, 23185 |
| Phone | 7572204900 |
| Fax | 7575655328 |
| Enumeration date | 2011-10-10 |
| Last updated in NPPES | 2011-10-10 |
Authorized official
| Name | James Lesnick |
|---|---|
| Title | Vice President |
| Phone | 7575944006 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 2085R0001X | Radiation Oncology Physician | Primary | — | VA |
Copy-ready billing details
Provider: Riverside Physician Services Inc NPI: 1801170741 Taxonomy: 2085R0001X (Radiation Oncology Physician) Address: 3901 TREYBURN DR, SUITE B, Williamsburg, VA, 23185
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1053381251 | Mark Chisam | Individual | Radiation Oncology Physician | Williamsburg, VA |
| 1144387655 | Williamsburg Radiation Therapy Center Inc | Organization | Radiology Clinic/Center | Williamsburg, VA |
| 1679753644 | Williamsburg Famiily Physicians, Inc. | Organization | Family Medicine Physician | Williamsburg, VA |
| 1750543146 | Jon Gray | Individual | Occupational Medicine Physician | Williamsburg, VA |
| 1578804704 | Riverside Physician Services Inc | Organization | Family Medicine Physician | Williamsburg, VA |
Verify this record
Cross-check NPI 1801170741 against the authoritative CMS record: view Riverside Physician Services Inc 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
Who is the authorized official for Riverside Physician Services Inc?
What is the NPI number for Riverside Physician Services Inc?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2011-10-10.