Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ROBERT JOSEPH KNOX JR DDS
NPI 1982601233
Dentist - Periodontics in Greensboro, NC

Q: What is Robert Knox Jr's NPI number?

The NPI number for Robert Knox Jr is 1982601233. It was assigned to this individual provider in the NPPES registry on July 1, 2005.

Q: What is Robert Knox Jr's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Periodontics, with taxonomy code 1223P0300X.

Q: Is Robert Knox Jr enrolled in Medicare?

No. Robert Knox Jr has opted out of Medicare through August 4, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Robert Knox Jr was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 days 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.

Active since July 01, 2005Opted out of Medicare · through Aug 4, 2027

301 E WENDOVER AVE, SUITE 315, GREENSBORO, NC 27401(336) 379-8377(336) 275-2078 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

On this page

About Dr. Robert Joseph Knox Jr Dds NPPES

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

DR. ROBERT JOSEPH KNOX JR DDS (NPI 1982601233) is an individual periodontics provider in Greensboro, North Carolina, licensed in North Carolina (5721) and active in the NPI registry since July 2005. He has opted out of Medicare through August 4, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1982601233

Entity TypeIndividualMale

Primary Taxonomy1223P0300X

Provider Legal NameDR. ROBERT JOSEPH KNOX JRCredential: DDS

Location Address301 E WENDOVER AVE, SUITE 315Greensboro, NC 27401-1230

Mailing Address301 E Wendover Ave, Suite 315Greensboro, NC 27401-1230 · (336) 379-8377 · Fax (336) 275-2078

Phone(336) 379-8377

Fax(336) 275-2078

Sole ProprietorNo

Enumeration DateJuly 1, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1982601233 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · PeriodonticsDental Providers

Taxonomy Code1223P0300X

License✔ Licensed in NC · 5721

Definition

That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.

301 E WENDOVER AVE, Greensboro, NC 27401

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Humana.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Robert Joseph Knox Jr Dds has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from August 4, 2021 through August 4, 2027.

Opt-Out Effective DateAugust 4, 2021

Opt-Out In Effect ThroughAugust 4, 2027Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 27401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$83.90 typical visit price

range $54.12 – $165.09

Typical copayment $20.97 (range $13.53 – $41.27)

Most-billed visit code 99203

Established Patient

$67.72 typical visit price

range $17.21 – $134.61

Typical copayment $16.93 (range $4.30 – $33.65)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SHRUTI VIJAYA SIMHA M.D., M.P.H

Pediatrics

301 E WENDOVER AVE, STE 400
GREENSBORO, NC 27401

Guilford County (336) 832-3150

DENISE PEREZ-FIERY MD

Pediatrics

301 E WENDOVER AVE, STE 400
GREENSBORO, NC 27401

Guilford County (336) 832-3150

NICOLE C CHANDLER M.D.

Pediatrics

301 E WENDOVER AVE, STE 400
GREENSBORO, NC 27401

Guilford County (336) 832-3150

BRYAN K BARTLE M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

301 E WENDOVER AVE, SUITE 411
GREENSBORO, NC 27401

Guilford County (336) 832-3200

ANGELA JOLENE STANLEY MD

Pediatrics

301 E WENDOVER AVE, STE 400
GREENSBORO, NC 27401

Guilford County (336) 832-3150

LEWIS DEAN MITCHELL MD

Family Medicine

301 E WENDOVER AVE, SUITE 215
GREENSBORO, NC 27401

Guilford County (336) 379-1156

DR. SURESH NAGAPPAN M.D.

Pediatrics

301 E WENDOVER AVE, STE 400
GREENSBORO, NC 27401

Guilford County (336) 832-3150

DR. DONALD VINCENT HECK MD

Radiology (Diagnostic Radiology)

301 E WENDOVER AVE, SUITE 411
GREENSBORO, NC 27401

Guilford County (336) 832-3210

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 Knox Jr's NPI number?

The NPI number for Robert Knox Jr is 1982601233. It was assigned to this individual provider in the NPPES registry on July 1, 2005.

Where is Robert Knox Jr located?

Robert Knox Jr practices at 301 E Wendover Ave Suite 315, Greensboro, NC 27401. The listed phone number is (336) 379-8377.

What is Robert Knox Jr's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Periodontics, with taxonomy code 1223P0300X.

Is Robert Knox Jr enrolled in Medicare?

No. Robert Knox Jr has opted out of Medicare through August 4, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

What insurance does Robert Knox Jr accept?

Health plans from Humana list Robert Knox Jr 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 Knox Jr was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 days 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.