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

ROBERT HOGAN KNOX M.D.
NPI 1790172666
Ophthalmology in Rogers, AR

Q: What is Robert Knox's NPI number?

The NPI number for Robert Knox is 1790172666. It was assigned to this individual provider in the NPPES registry on April 18, 2015.

Q: What is Robert Knox's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for Robert Knox was last updated on July 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 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 April 18, 2015PECOS EnrolledAccepts Medicare Assignment

75.81/100

CMS Quality Rating

3737 W WALNUT ST, ROGERS, AR 72756(479) 246-1700(479) 337-8416 Get Directions Write a Review

NPPES record last updated: July 10, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 10, 2026, Jul 22, 2024, Aug 19, 2020 and 1 more (4 updates tracked since 2019).

On this page

About Robert Hogan Knox M.d. NPPES

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

ROBERT HOGAN KNOX M.D. (NPI 1790172666) is an individual ophthalmology provider in Rogers, Arkansas, licensed in Arkansas (E-20385) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS and is a graduate of University Of Arkansas College Of Medicine (2015).

NPPES Registry Identity

NPI1790172666

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameROBERT HOGAN KNOXCredential: M.D.

Location Address3737 W WALNUT STRogers, AR 72756-1839

Mailing AddressPo Box 1353Rogers, AR 72757-1353 · (479) 246-1700 · Fax (479) 337-8416

Phone(479) 246-1700

Fax(479) 337-8416

Sole ProprietorNo

Medical School CMSUniversity Of Arkansas College Of MedicineGraduated 2015

Enumeration DateApril 18, 2015

Last NPPES UpdateJuly 10, 20264 updates tracked since enumeration

NPPES CertifiedJuly 10, 2026

✔ NPI 1790172666 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in AR · E-20385

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

3737 W WALNUT ST, Rogers, AR 72756

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Alabama, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Robert Hogan Knox M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3971824962

PECOS Enrollment IDI20190809002774

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 15

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

837 services584 patients

Imaging of optic nerve 92133

Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).

268 services263 patients

Exam of visual field with extended testing 92083

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

206 services202 patients

Removal of cataract with insertion of prosthetic lens 66984

This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.

180 services112 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

163 services163 patients

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

123 services109 patients

Measurement of corneal curvature and depth of eye 92136

This procedure measures the shape and depth of your eye, specifically the cornea, the clear front surface. It helps in diagnosing conditions, planning for surgeries, or fitting contact lenses. It's non-invasive and painless.

117 services117 patients

Measurement of corneal curvature and depth of eye 92136

79 services79 patients

Exam of the internal drainage system of eye 92020

This is a procedure where your doctor examines the eye's internal drainage system, essential for maintaining eye pressure. They use specialized tools to check for blockages or damage that might lead to conditions like glaucoma. It's non-invasive and painless.

58 services55 patients

Ultrasound scan of cornea to determine thickness 76514

An ultrasound scan of the cornea is a non-invasive procedure that uses sound waves to measure the thickness of your cornea. This helps in diagnosing certain eye conditions and planning treatments. No discomfort or pain is typically experienced.

48 services48 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

37 services35 patients

Removal of recurring cataract in lens capsule using a laser 66821

This procedure, known as YAG laser capsulotomy, treats cloudiness in the lens capsule following cataract surgery. A laser is used to create a small hole in the cloudy capsule, allowing light to pass through and restore clear vision. It's a quick, painless procedure.

16 services16 patients

Creation of shunt to improve eye fluid flow using tissue graft 66180

This procedure involves creating a new pathway for fluid to flow out of your eye using a tissue graft. It helps to lower eye pressure and prevent damage to your optic nerve, improving eye health and vision.

15 services11 patients

Creation of eye fluid drainage tract for treatment of glaucoma 66170

This procedure, aimed at treating glaucoma, involves creating a small pathway in the eye to allow fluid to drain more effectively. This helps to lower eye pressure and prevent damage to the optic nerve, preserving your vision.

13 services11 patients

Removal of recurring cataract in lens capsule using a laser 66821

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 72756 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

$119.36 typical visit price

range $51.36 – $157.74

Typical copayment $29.84 (range $12.84 – $39.43)

Most-billed visit code 99204

Established Patient

$64.56 typical visit price

range $16.16 – $128.77

Typical copayment $16.14 (range $4.04 – $32.19)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75.81/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

89.29

Promoting Interoperability

Improvement Activities

Cost

41.73

Other Providers at the Same Location NPPES 11

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

REBECCA JANE SIMMONS BROWN OD

Optometrist