Active NPI 1790782035 Individual Practitioner Male Practitioner

Dr. Robert J Knox , MD

Ophthalmology • Portsmouth, OH

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Robert Knox, MD is a certified Ophthalmology practicing in Portsmouth, OH. With approximately 26 years of clinical experience since graduating from University Of Missouri, Columbia School Of Medicine in 2000, Dr. Knox delivers high-quality medical care to the local community at 1534 11TH ST.

Dr. Knox accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, imaging of retina, measurement of corneal curvature and depth of eye. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1534 11th St

Portsmouth, OH 456624524

Telephone 7403551161

Fax 7403551191

Associated Practice Facility / Clinic

🏢 Robert J. Knox Md, Inc Facility NPI 1669492195

Medicare Profile & Education

Medical School

University Of Missouri, Columbia School Of Medicine

Graduation Year

2000

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Portsmouth, OH

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

26 Yrs -1.3 yrs vs City Avg

City Avg: 27.3 Yrs

State Avg: 27.9 Yrs

Regional Practice Density

3 Specialists

Practicing in Portsmouth, OH (803 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

59.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Knox (26 Years) 26 Yrs

Portsmouth Specialty Average (27.3 Years) 27.3 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	269	229	$237.17	$119.33
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	204	132	$103.53	$52.30
92134 Imaging of retina	191	77	$73.66	$34.70
92136 Measurement of corneal curvature and depth of eye	168	114	$128.00	$36.93
66984 Removal of cataract with insertion of lens	142	90	$1133.15	$494.69
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	130	130	$311.75	$156.23
92250 Photography of the retina	105	102	$72.10	$34.12
99213 Established patient office or other outpatient visit, typically 15 minutes	83	66	$166.99	$85.07
92083 Exam of visual field with extended testing	80	77	$114.19	$58.01
67028 Injection of drug into eye	75	20	$206.40	$96.12
92020 Examination of cornea and iris using lens device and slit lamp	72	70	$49.89	$25.50
92133 Imaging of optic nerve	69	68	$66.49	$31.73
64727 Release of nerve using operating microscope	62	37	$500.00	$168.74
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	62	37	$150.00	$11.56
64708 Release of nerve of arm or leg, open procedure	62	37	$750.00	$241.62
J2280 Injection, moxifloxacin, 100 mg	56	34	$50.00	$8.66
V2632 Posterior chamber intraocular lens	56	34	$750.00	$137.29
66821 Removal of recurring cataract in lens capsule using a laser	39	29	$613.56	$296.29
J3590 Unclassified biologics	29	11	$129.03	$54.98
67820 Removal of eyelashes using forceps	28	16	$80.79	$18.15
92132 Imaging of front third of eye	20	19	$55.60	$26.57
66982 Complex removal of cataract with insertion of prosthetic lens	19	17	$1435.26	$707.86
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$207.82	$100.88

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	337	287	$190.00	$120.96
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	293	161	$82.00	$53.54
92134 Imaging of retina	216	84	$60.00	$37.60
66984 Removal of cataract with insertion of lens	153	93	$1133.80	$487.11
92136 Measurement of corneal curvature and depth of eye	150	105	$128.00	$37.23
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	121	121	$247.00	$157.13
92250 Photography of the retina	114	111	$94.00	$34.25
92083 Exam of visual field with extended testing	113	102	$92.00	$58.20
99213 Established patient office or other outpatient visit, typically 15 minutes	98	76	$134.00	$86.03
92020 Examination of cornea and iris using lens device and slit lamp	81	79	$41.00	$26.12
92133 Imaging of optic nerve	75	72	$55.00	$32.11
67028 Injection of drug into eye	61	22	$165.08	$104.55
66821 Removal of recurring cataract in lens capsule using a laser	51	39	$483.00	$305.84
68761 Closure of tear duct opening using plug	41	15	$216.00	$103.72
J3590 Unclassified biologics	32	17	$128.00	$59.08
67820 Removal of eyelashes using forceps	29	19	$66.00	$18.73
92132 Imaging of front third of eye	17	15	$46.00	$27.80
66982 Complex removal of cataract with insertion of prosthetic lens	16	13	$1310.50	$726.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$165.00	$106.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	352	296	$190.00	$124.46
66984 Removal of cataract with insertion of lens	277	128	$917.52	$414.24
92136 Measurement of corneal curvature and depth of eye	257	155	$128.00	$39.57
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	229	133	$82.00	$55.06
92134 Imaging of retina	205	79	$60.00	$38.74
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	156	156	$247.00	$163.54
92250 Photography of the retina	118	110	$94.00	$35.74
99213 Established patient office or other outpatient visit, typically 15 minutes	101	84	$134.00	$88.08
92083 Exam of visual field with extended testing	97	93	$92.00	$58.65
92020 Examination of cornea and iris using lens device and slit lamp	84	82	$41.00	$26.79
92133 Imaging of optic nerve	76	74	$55.00	$32.75
66821 Removal of recurring cataract in lens capsule using a laser	74	55	$483.00	$320.36
67028 Injection of drug into eye	73	18	$165.00	$108.66
66982 Complex removal of cataract with insertion of prosthetic lens	61	25	$672.46	$391.09
J3590 Unclassified biologics	57	16	$128.00	$59.35
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	31	31	$165.00	$105.43
67820 Removal of eyelashes using forceps	27	20	$62.30	$18.43
68761 Closure of tear duct opening using plug	23	12	$216.00	$101.81
92132 Imaging of front third of eye	15	15	$46.00	$27.44

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	414	343	$190.00	$127.79
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	301	173	$82.00	$55.03
66984 Removal of cataract with insertion of lens	300	120	$757.65	$328.08
92136 Measurement of corneal curvature and depth of eye	232	150	$128.55	$43.01
92134 Imaging of retina	221	86	$60.00	$39.72
92250 Photography of the retina	135	128	$94.00	$38.06
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	133	133	$247.00	$166.43
99213 Established patient office or other outpatient visit, typically 15 minutes	121	97	$134.26	$89.43
92083 Exam of visual field with extended testing	101	95	$92.00	$60.60
92020 Examination of cornea and iris using lens device and slit lamp	89	86	$41.00	$26.78
92133 Imaging of optic nerve	87	83	$55.00	$33.13
67028 Injection of drug into eye	65	21	$165.00	$111.67
J3590 Unclassified biologics	57	20	$128.00	$60.00
66821 Removal of recurring cataract in lens capsule using a laser	48	40	$483.00	$314.90
66982 Complex removal of cataract with insertion of prosthetic lens	42	16	$641.90	$366.23
67820 Removal of eyelashes using forceps	34	27	$68.24	$22.91
68761 Closure of tear duct opening using plug	26	13	$216.00	$116.52
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	25	25	$165.00	$110.97
92132 Imaging of front third of eye	12	12	$46.00	$28.05

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
66984 Removal of cataract with insertion of lens	801	108	$239.40	$94.52
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	407	347	$158.17	$106.46
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	302	179	$65.50	$43.91
92134 Imaging of retina	240	109	$60.80	$39.65
92136 Measurement of corneal curvature and depth of eye	181	121	$128.00	$47.03
99213 Established patient office or other outpatient visit, typically 15 minutes	126	98	$108.11	$73.46
92250 Photography of the retina	116	112	$89.09	$42.28
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	109	109	$240.36	$162.76
92083 Exam of visual field with extended testing	95	91	$96.55	$60.38
67028 Injection of drug into eye	86	29	$153.02	$100.24
92020 Examination of cornea and iris using lens device and slit lamp	80	80	$38.08	$26.70
92133 Imaging of optic nerve	76	76	$56.59	$33.94
J3590 Unclassified biologics	63	24	$125.57	$59.76
66821 Removal of recurring cataract in lens capsule using a laser	48	37	$481.33	$319.13
67820 Removal of eyelashes using forceps	42	32	$60.38	$25.13
66982 Complex removal of cataract with insertion of prosthetic lens	39	15	$581.28	$297.66
68761 Closure of tear duct opening using plug	32	14	$214.63	$101.80
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$157.47	$99.60
92132 Imaging of front third of eye	11	11	$45.82	$28.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
66984 Removal of cataract with insertion of lens	1,665	171	$198.75	$90.19
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	577	472	$157.97	$104.44
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	434	235	$64.95	$43.16
92134 Imaging of retina	336	137	$60.00	$39.20
92136 Measurement of corneal curvature and depth of eye	297	190	$101.55	$50.84
99213 Established patient office or other outpatient visit, typically 15 minutes	185	154	$107.97	$71.11
92083 Exam of visual field with extended testing	161	145	$92.98	$60.40
67028 Injection of drug into eye	150	37	$150.99	$99.95
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	145	145	$241.00	$158.23
92250 Photography of the retina	143	141	$73.15	$47.58
92020 Examination of cornea and iris using lens device and slit lamp	126	123	$40.99	$26.27
92133 Imaging of optic nerve	116	115	$54.02	$32.85
J3590 Unclassified biologics	100	31	$99.75	$59.04
66821 Removal of recurring cataract in lens capsule using a laser	71	54	$484.00	$321.65
66982 Complex removal of cataract with insertion of prosthetic lens	55	15	$364.31	$184.99
67820 Removal of eyelashes using forceps	55	42	$49.75	$30.83
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	31	31	$158.00	$105.30
92132 Imaging of front third of eye	15	15	$46.00	$28.09
65205 Removal of foreign body in external eye, conjunctiva	14	14	$67.00	$42.66
65210 Removal of foreign body from external eye (conjunctiva or sclera)	13	12	$90.77	$65.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
66984 Removal of cataract with insertion of lens	2,391	174	$140.21	$62.39
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	518	415	$156.95	$103.31
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	508	269	$63.00	$41.72
92134 Imaging of retina	400	172	$60.05	$39.25
92136 Measurement of corneal curvature and depth of eye	335	210	$128.00	$55.01
99213 Established patient office or other outpatient visit, typically 15 minutes	315	260	$105.93	$69.73
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	190	190	$240.68	$156.83
67028 Injection of drug into eye	190	47	$149.99	$98.80
92083 Exam of visual field with extended testing	178	163	$92.39	$60.43
92250 Photography of the retina	149	147	$94.46	$53.19
92020 Examination of cornea and iris using lens device and slit lamp	135	132	$39.88	$25.49
92133 Imaging of optic nerve	130	126	$55.21	$33.16
J3590 Unclassified biologics	121	39	$74.79	$58.96
66982 Complex removal of cataract with insertion of prosthetic lens	99	15	$239.44	$133.71
66821 Removal of recurring cataract in lens capsule using a laser	76	56	$479.74	$315.42
67820 Removal of eyelashes using forceps	50	37	$64.36	$37.27
68761 Closure of tear duct opening using plug	44	18	$214.86	$106.39
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	37	37	$157.92	$103.83
65210 Removal of foreign body from external eye (conjunctiva or sclera)	24	23	$113.63	$73.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
66984 Removal of cataract with insertion of lens	8,715	191	$44.42	$19.77
66982 Complex removal of cataract with insertion of prosthetic lens	771	18	$40.38	$22.09
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	598	500	$155.91	$102.51
99213 Established patient office or other outpatient visit, typically 15 minutes	466	335	$104.91	$69.48
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	453	251	$62.97	$41.29
92134 Imaging of retina	451	193	$63.05	$38.85
92136 Measurement of corneal curvature and depth of eye	334	209	$128.00	$61.65
92083 Exam of visual field with extended testing	192	184	$92.35	$59.45
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	165	165	$239.90	$156.38
92133 Imaging of optic nerve	165	160	$63.09	$33.21
92020 Examination of cornea and iris using lens device and slit lamp	157	154	$38.59	$25.35
67028 Injection of drug into eye	141	34	$149.45	$97.88
92250 Photography of the retina	120	120	$111.00	$61.06
J3590 Unclassified biologics	103	28	$50.00	$49.20
66821 Removal of recurring cataract in lens capsule using a laser	83	63	$474.99	$313.34
68761 Closure of tear duct opening using plug	51	23	$212.00	$105.38
67820 Removal of eyelashes using forceps	39	32	$74.79	$45.85
65210 Removal of foreign body from external eye (conjunctiva or sclera)	27	27	$95.00	$71.78
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	26	26	$156.92	$101.21
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	11	11	$300.00	$197.84

Medical Specialties & State Licenses

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License OH 35-077740

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

2187351 (OH)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

1 Associated Practitioners

Dr. John Evans , MD

Ophthalmology

NPI 1386646644

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active October 21, 2009

NPI status registered as active in NPPES database

📍

Updated Practice Location October 21, 2009

Registered at 1534 11TH ST, PORTSMOUTH, OH 456624524 (Tel: 7403551161)

📍

Updated Business Mailing Address October 21, 2009

Registered at 1534 11TH ST, PORTSMOUTH, OH 456624524 (Tel: 7403551161)

👤

Provider Name / Credentials Updated October 21, 2009

Recorded as ROBERT KNOX, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 21, 2009

Ophthalmology (License #35-077740 in OH)

🟢

Initial NPI Registration & Enumeration July 01, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1790782035

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: July 01, 2005

Last Update: October 21, 2009

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1534 11th St

Portsmouth, OH 456624524

Phone: 7403551161

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.