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Dr. William Randall Knapp, OD

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Specializes in: Optometry (Primary Eye Care)

Ohio State University College of Optometry (1996)

212 E Wyandot Avenue
Upper Sandusky, OH 43351

(419) 294-2421

Dr. William Randall Knapp, OD is an optometrist in Upper Sandusky, OH specializing in optometry (primary eye care). He graduated from Ohio State University College of Optometry in 1996 and has 30 years of experience.

Office Locations

212 E Wyandot Avenue
Upper Sandusky, OH 43351

(419) 294-2421

(419) 294-2499

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Noteworthy Medicare Patient Procedures Performed by Dr. William Randall Knapp, OD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 10%

By Volume:

eye procedures

In 2023, Dr. William Randall Knapp, OD performed more eye procedures procedures for Medicare patients than 90% of providers in related specialties within Ohio.

Top 25%

By Volume:

comprehensive eye exam

In 2012, Dr. William Randall Knapp, OD performed more comprehensive eye exam procedures for Medicare patients than 75% of providers in related specialties within Ohio.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William Randall Knapp, OD treated as an optometrist in Upper Sandusky, OH during 2012 were eye procedures.

Volume of procedures performed by Dr. William Randall Knapp, OD for Medicare patients.

doctor visit	73
eye procedures	74

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William Randall Knapp, OD treated as an optometrist in Upper Sandusky, OH during 2013 were eye procedures.

Volume of procedures performed by Dr. William Randall Knapp, OD for Medicare patients.

doctor visit	86
eye procedures	1320

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William Randall Knapp, OD.

**Gender**
Male	42
Female	76

**Age**
From 65 to 74	50
From 75 to 84	40
85 and over	14
Less than 65	14

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2013

Hypertension	71
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	30
Depression	16
Chronic Kidney Disease	20
Asthma	0
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	22
Chronic Obstructive Pulmonary Disease	19
Diabetes	31
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William Randall Knapp, OD treated as an optometrist in Upper Sandusky, OH during 2014 were eye procedures.

Volume of procedures performed by Dr. William Randall Knapp, OD for Medicare patients.

doctor visit	115
eye procedures	1171

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William Randall Knapp, OD.

**Gender**
Male	63
Female	83

**Age**
From 65 to 74	56
From 75 to 84	42
85 and over	21
Less than 65	27

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2014

Hypertension	71
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	29
Depression	17
Chronic Kidney Disease	17
Asthma	0
Osteoperosis	0
Atrial Fibrilation	14
Heart Failure	20
Chronic Obstructive Pulmonary Disease	14
Diabetes	29
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William Randall Knapp, OD treated as an optometrist in Upper Sandusky, OH during 2015 were eye procedures.

Volume of procedures performed by Dr. William Randall Knapp, OD for Medicare patients.

doctor visit	137
eye procedures	1565

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William Randall Knapp, OD.

**Gender**
Male	182
Female	200

**Age**
From 65 to 74	160
From 75 to 84	116
85 and over	28
Less than 65	78

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2015

Hypertension	70
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	26
Depression	20
Chronic Kidney Disease	16
Asthma	13
Osteoperosis	0
Atrial Fibrilation	6
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William Randall Knapp, OD treated as an optometrist in Upper Sandusky, OH during 2016 were eye procedures.

Volume of procedures performed by Dr. William Randall Knapp, OD for Medicare patients.

doctor visit	185
eye procedures	162

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William Randall Knapp, OD.

**Gender**
Male	98
Female	127

**Age**
From 65 to 74	97
From 75 to 84	67
85 and over	23
Less than 65	38

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2016

Hypertension	72
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	28
Depression	15
Chronic Kidney Disease	27
Asthma	12
Osteoperosis	6
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William Randall Knapp, OD treated as an optometrist in Upper Sandusky, OH during 2017 were eye procedures.

Volume of procedures performed by Dr. William Randall Knapp, OD for Medicare patients.

doctor visit	240
eye procedures	200

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William Randall Knapp, OD.

**Gender**
Male	89
Female	155

**Age**
From 65 to 74	105
From 75 to 84	72
85 and over	29
Less than 65	38

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2017

Hypertension	66
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	25
Depression	14
Chronic Kidney Disease	24
Asthma	0
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	27
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William Randall Knapp, OD treated as an optometrist in Upper Sandusky, OH during 2018 were eye procedures.

Volume of procedures performed by Dr. William Randall Knapp, OD for Medicare patients.

doctor visit	226
eye procedures	2199

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William Randall Knapp, OD.

**Gender**
Male	88
Female	131

**Age**
From 65 to 74	100
From 75 to 84	65
85 and over	20
Less than 65	34

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2018

Hypertension	71
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	27
Depression	20
Chronic Kidney Disease	30
Asthma	0
Osteoperosis	5
Atrial Fibrilation	11
Heart Failure	11
Chronic Obstructive Pulmonary Disease	13
Diabetes	35
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William Randall Knapp, OD treated as an optometrist in Upper Sandusky, OH during 2019 were eye procedures.

Volume of procedures performed by Dr. William Randall Knapp, OD for Medicare patients.

doctor visit	145
eye procedures	1935

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William Randall Knapp, OD.

**Gender**
Male	76
Female	119

**Age**
From 65 to 74	84
From 75 to 84	66
85 and over	23
Less than 65	22

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2019

Hypertension	68
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	23
Depression	12
Chronic Kidney Disease	33
Asthma	0
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William Randall Knapp, OD treated as an optometrist in Upper Sandusky, OH during 2020 were eye procedures.

Volume of procedures performed by Dr. William Randall Knapp, OD for Medicare patients.

doctor visit	107
eye procedures	2054

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William Randall Knapp, OD.

**Gender**
Male	59
Female	85

**Age**
From 65 to 74	70
From 75 to 84	50
85 and over	11
Less than 65	13

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2020

Hypertension	69
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	22
Depression	17
Chronic Kidney Disease	28
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	13
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William Randall Knapp, OD treated as an optometrist in Upper Sandusky, OH during 2021 were eye procedures.

Volume of procedures performed by Dr. William Randall Knapp, OD for Medicare patients.

doctor visit	180
eye procedures	4857

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William Randall Knapp, OD.

**Gender**
Male	124
Female	164

**Ethnicity**
Non-Hispanic White	274
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	140
From 75 to 84	97
85 and over	32
Less than 65	19

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2021

Hypertension	73
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	29
Depression	19
Chronic Kidney Disease	31
Asthma	4
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	34
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. William Randall Knapp, OD treated as an optometrist in Upper Sandusky, OH during 2022 were eye procedures.

Volume of procedures performed by Dr. William Randall Knapp, OD for Medicare patients.

doctor visit	228
eye procedures	2834

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. William Randall Knapp, OD.

**Gender**
Male	124
Female	174

**Ethnicity**
Non-Hispanic White	286
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	100
85 and over	31
Less than 65	20

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2022

Hypertension	75
High Cholesterol	71
Stroke	6
Ischemic Heart Disease	16
Depression	15
Chronic Kidney Disease	23
Asthma	4
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	33
Dementia	4
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. William Randall Knapp, OD for Medicare patients.

The highest averages for the top procedures that Dr. William Randall Knapp, OD treated as an optometrist in Upper Sandusky, OH were eye procedures.

doctor visit	156
eye procedures	1670

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. William Randall Knapp, OD.

**Gender**
Male	85
Female	119

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	50
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	65
85 and over	21
Less than 65	27
65 to 74	91

Average of Total of Conditions of Medicare patients treated by Dr. William Randall Knapp, OD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. William Randall Knapp, OD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	64
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	23
Depression	15
Chronic Kidney Disease	22
Asthma	3
Osteoporosis	3
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	28
Atrial Fibrillation	8
Dementia	4
Cancer	9

Education & Training

Dr. William Randall Knapp, OD graduated from Ohio State University College of Optometry in 1996. He has a state license in Ohio.

Medical School: Ohio State University College of Optometry (1996)

Licensed In: Ohio

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General Payments

These charts describe general payments received by Dr. William Randall Knapp, OD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Shire North American Group Inc	$94 XIIDRA $94
Johnson & Johnson Vision Care, Inc.	$88 Acuvue $88
Alcon Laboratories Inc	$60 Contact Lenses $60
Synergeyes, Inc.	$12 Duette Contact Lenses $12
Bausch & Lomb, a division of Bausch Health US, LLC	$12 BTOD $12

**Types of Payments**
Food and Beverage	$267

Biography

Dr. William Knapp works as an optometry (primary eye care) specialist in Upper Sandusky, OH. Dr. Knapp obtained a license to practice in Ohio.

Select Year:

Dr. William Randall Knapp, OD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. William Randall Knapp, OD in 2023

By Volume:

By Volume:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Randall Knapp, OD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. William Randall Knapp, OD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

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