Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Robert J Knox, MD

Individual provider Ophthalmology Physician · NPI 1790782035

Dr. Robert J Knox, MD is an Ophthalmology in Portsmouth, Ohio. Graduated from University of Missouri, Columbia School of Medicine in 2000, 26 years ago. Accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
26
Trained at
University of Missouri, Columbia School of Medicine
Licensed in
OH
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1534 11th St
Portsmouth, OH 45662-4524
Phone: (740) 355-1161
Fax: (740) 355-1191
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 35-077740 (OH)

Record details

NPI number1790782035
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 1, 2005
Last updated in NPPESOctober 21, 2009
Mailing address1534 11th St, Portsmouth, OH 45662-4524

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPHTHALMOLOGY
Medical schoolUNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE
Graduated 2000 (26 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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