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ROBERT J. KNOX MD, INC
NPI 1669492195
Clinic/Center - Ophthalmologic Surgery in Portsmouth, OH

Active since July 20, 2006
1534 11TH ST, PORTSMOUTH, OH 45662(740) 355-1161(740) 355-1191 Get Directions Write a Review

NPPES record last updated: October 15, 2009. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Robert J. Knox Md, Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROBERT J. KNOX MD, INC (NPI 1669492195) is a healthcare organization registered as an ophthalmologic surgery in Portsmouth, Ohio and active in the NPI registry since July 2006. The organization lists Robert James Knox, President, as its authorized official.

NPPES Registry Identity

NPI1669492195
Entity TypeOrganization
Primary Taxonomy261QS0132X
Legal Business NameROBERT J. KNOX MD, INC
Location Address1534 11TH STPortsmouth, OH 45662-4524
Mailing Address1534 11th StPortsmouth, OH 45662-4524 · (740) 355-1161 · Fax (740) 355-1191
Phone(740) 355-1161
Fax(740) 355-1191
Organization SubpartNo
Authorized OfficialRobert James KnoxPresident · (740) 355-1161
Enumeration DateJuly 20, 2006
Last NPPES UpdateOctober 15, 2009
✔ NPI 1669492195 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Ophthalmologic SurgeryAmbulatory Health Care Facilities
Taxonomy Code261QS0132X
License✔ Licensed in OH · 35077740
1534 11TH ST, Portsmouth, OH 45662
Open in Google Maps ↗

Other Identifiers 2

Medicaid2187351OH
Medicare UPINH14689OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource, Molina Healthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Robert J. Knox Md, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Robert J. Knox MD, Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Robert Knox, M.D.
Ophthalmology
NPI 1790782035
1534 11TH ST
Portsmouth, OH 45662
(740) 355-1161
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert J. Knox MD, Inc's NPI number?

The NPI number for Robert J. Knox MD, Inc is 1669492195. It was assigned to this organization in the NPPES registry on July 20, 2006.

Where is Robert J. Knox MD, Inc located?

Robert J. Knox MD, Inc is located at 1534 11th St, Portsmouth, OH 45662. The listed phone number is (740) 355-1161.

What is Robert J. Knox MD, Inc's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Ophthalmologic Surgery, with taxonomy code 261QS0132X.

Is Robert J. Knox MD, Inc enrolled in Medicare?

Yes. Robert J. Knox MD, Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Robert J. Knox MD, Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Ophthalmology) reassigns their Medicare billing to Robert J. Knox MD, Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Robert J. Knox MD, Inc accept?

Health plans from CareSource and Molina Healthcare list Robert J. Knox MD, Inc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Robert J. Knox MD, Inc was last updated on October 15, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.