DR. ROBERT J KNOX M.D.
NPI 1790782035
Ophthalmology in Portsmouth, OH

Q: What is Robert Knox's NPI number?

The NPI number for Robert Knox is 1790782035. It was assigned to this individual provider in the NPPES registry on July 1, 2005.

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 October 21, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since July 01, 2005PECOS EnrolledAccepts Medicare Assignment

82.71/100

CMS Quality Rating

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

NPPES record last updated: October 21, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. Robert J Knox M.d. NPPES

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

DR. ROBERT J KNOX M.D. (NPI 1790782035) is an individual ophthalmology provider in Portsmouth, Ohio, licensed in Ohio (35-077740) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Southern Ohio Medical Center, and is a graduate of University Of Missouri, Columbia School Of Medicine (2000).

NPPES Registry Identity

NPI1790782035

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDR. ROBERT J KNOXCredential: M.D.

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

Sole ProprietorNo

Medical School CMSUniversity Of Missouri, Columbia School Of MedicineGraduated 2000

Enumeration DateJuly 1, 2005

Last NPPES UpdateOctober 21, 2009

✔ NPI 1790782035 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in OH · 35-077740

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.

1534 11TH ST, Portsmouth, OH 45662

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Other Identifiers 4

Medicare UPINH14689OH

Medicare ID-Type Unspecified4132381OH · Individual

Medicare ID-Type Unspecified9344241OH · Group

Medicaid2187351OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource, MedMutual 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

Dr. Robert J 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 ID2163407271

PECOS Enrollment IDI20040623000752

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 23

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.

269 services229 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

204 services132 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.

191 services77 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.

168 services114 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.

142 services90 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.

130 services130 patients

Photography of the retina 92250

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

105 services102 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.

83 services66 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.

80 services77 patients

Injection of drug into eye 67028

An injection into the eye is a procedure where a medication is delivered directly into your eye to treat various conditions. A local anesthetic is applied to numb the eye, ensuring minimal discomfort. The drug helps manage diseases like macular degeneration or diabetic retinopathy.

75 services20 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.

72 services70 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).

69 services68 patients

Release of arm or leg nerve 64708

A release of an arm or leg nerve is a surgical procedure aimed at relieving pressure on the nerve. This pressure can cause pain, numbness, or weakness. During the procedure, the surgeon makes a small incision and gently moves tissues away from the nerve. This can help restore normal function and alleviate discomfort.

62 services37 patients

Release of nerve using operating microscope 64727

This procedure, called a microsurgical nerve release, involves using a special microscope to enhance precision while freeing a trapped nerve. It can help alleviate pain and improve nerve function. It's a safe and effective method often used for conditions like carpal tunnel syndrome.

62 services37 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

62 services37 patients

Injection, moxifloxacin, 100 mg J2280

Moxifloxacin is an antibiotic injection used to treat various bacterial infections. The 100 mg dosage helps to stop the growth of bacteria. It's administered by a healthcare professional, typically into a vein. It's important to complete the treatment to fully clear the infection.

56 services34 patients

Posterior chamber intraocular lens V2632

A Posterior Chamber Intraocular Lens (PCIOL) is a procedure done to improve vision after cataract surgery. It involves placing a small artificial lens in the back part of the eye, replacing the natural lens that was removed during cataract surgery.

56 services34 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.

39 services29 patients

Unclassified biologics J3590

Unclassified biologics are a type of treatment derived from living organisms. They can include a wide range of substances, such as vaccines, blood components, or genes, used to prevent or treat diseases. Each is specifically designed to interact with the body's natural defenses to promote healing.

29 services11 patients

Removal of eyelashes using forceps 67820

The removal of eyelashes using forceps is a simple procedure where a medical professional gently extracts unwanted or problematic eyelashes with a specialized tool. This is often done to alleviate discomfort or to treat conditions like trichiasis, where eyelashes grow inward.

28 services16 patients

Imaging of front third of eye 92132

Imaging of the front third of the eye, also known as anterior segment imaging, captures detailed images of the eye's front part. This includes the iris, cornea, and lens. It's a non-invasive procedure that helps diagnose and monitor eye conditions.

20 services19 patients

Complex removal of cataract with insertion of prosthetic lens 66982

This procedure involves removing a cloudy lens (cataract) from your eye and replacing it with a clear, artificial lens. It helps restore vision that has been affected by the cataract. The operation is usually done under local anesthesia.

19 services17 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

17 services17 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Southern Ohio Medical Center

Acute Care Hospitals · Portsmouth, OH

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number360008

Location1805 27th StreetPortsmouth, OH 45662 · Scioto County

Emergency services Birthing friendly

Kings Daughters Medical Center Ohio

Acute Care Hospitals · Portsmouth, OH

OwnershipVoluntary non-profit - Private

CMS Certification Number360361

Location1901 Argonne RoadPortsmouth, OH 45662 · Scioto County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 45662 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

$126.12 typical visit price

range $54.34 – $166.65

Typical copayment $31.53 (range $13.58 – $41.66)

Most-billed visit code 99204

Established Patient

$68.07 typical visit price

range $17.10 – $135.40

Typical copayment $17.01 (range $4.27 – $33.85)

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.

82.71/100

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

Individually scored

Quality

100

Improvement Activities

Cost

42.38

Reported Quality Measures

Complications After Cataract Surgery

Lower rates are better for this measure.

0%648 patients

Diabetes: Eye Exam

100%265 patients5/55-star benchmark: 100%

Documentation of Current Medications in the Medical Record

98%2,199 patients4/55-star benchmark: 100%

Glaucoma Intraocular Pressure Reduction

92%106 patients

Primary Open-Angle Glaucoma (POAG): Reduction of Intraocular Pressure (IOP) by 15% OR Documentation of a Plan of Care

99%112 patients

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 929 patients

Patients totalRate: 0% · 929 patients

0%929 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 4

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

JOHN EVANS MD OPHTHALMOLOGY INC

Ophthalmology

1534 11TH ST
PORTSMOUTH, OH 45662

Scioto County (740) 355-1161

11TH ST SURGICAL LLC

Clinic/Center (Ambulatory Surgical)

1534 11TH ST
PORTSMOUTH, OH 45662

Scioto County (740) 355-1161

DR. JOHN DENOON EVANS M.D.

Ophthalmology

1534 11TH ST
PORTSMOUTH, OH 45662

Scioto County (740) 355-1161

ROBERT J. KNOX MD, INC

Clinic/Center (Ophthalmologic Surgery)

1534 11TH ST
PORTSMOUTH, OH 45662

Scioto County (740) 355-1161

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's NPI number?

The NPI number for Robert Knox is 1790782035. It was assigned to this individual provider in the NPPES registry on July 1, 2005.

Where is Robert Knox located?

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

What is Robert Knox's specialty?

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

Is Robert Knox enrolled in Medicare?

Yes. Robert Knox is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Robert Knox accept?

Health plans from Anthem Blue Cross and Blue Shield, CareSource, MedMutual and Molina Healthcare list Robert Knox 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.

Is Robert Knox affiliated with any hospitals?

According to CMS data, Robert Knox is affiliated with Southern Ohio Medical Center and Kings Daughters Medical Center Ohio.

When was this NPI record last updated?

The NPPES record for Robert Knox was last updated on October 21, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.