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Dr. John Michael O'Block, OD

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Specializes in: Optometry (Primary Eye Care)

6 Tsienneto Road Suite 101
Derry, NH 03038

(603) 434-4193

Dr. John Michael O'Block, OD is an optometrist in Derry, NH specializing in optometry (primary eye care).

Office Locations

6 Tsienneto Road Suite 101
Derry, NH 03038

(603) 434-4193

(603) 437-6804

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John Michael O'Block, OD treated as an optometrist in Derry, NH during 2012 were eye procedures.

Volume of procedures performed by Dr. John Michael O'Block, OD for Medicare patients.

eye procedures	243

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Michael O'Block, OD treated as an optometrist in Derry, NH during 2013 were eye procedures.

Volume of procedures performed by Dr. John Michael O'Block, OD for Medicare patients.

eye procedures	168

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Michael O'Block, OD.

**Gender**
Male	34
Female	66

**Ethnicity**
Non-Hispanic White	87
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	36
From 75 to 84	26
85 and over	19
Less than 65	19

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2013

Hypertension	72
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	31
Depression	26
Chronic Kidney Disease	28
Asthma	0
Osteoperosis	15
Atrial Fibrilation	14
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Michael O'Block, OD treated as an optometrist in Derry, NH during 2015 were eye procedures.

Volume of procedures performed by Dr. John Michael O'Block, OD for Medicare patients.

doctor visit	218
eye procedures	151

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Michael O'Block, OD.

**Gender**
Male	214
Female	272

**Age**
From 65 to 74	266
From 75 to 84	114
85 and over	46
Less than 65	60

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2015

Hypertension	58
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	18
Depression	22
Chronic Kidney Disease	15
Asthma	14
Osteoperosis	6
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	12
Diabetes	25
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Michael O'Block, OD treated as an optometrist in Derry, NH during 2016 were eye procedures.

Volume of procedures performed by Dr. John Michael O'Block, OD for Medicare patients.

doctor visit	261
eye procedures	291

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Michael O'Block, OD.

**Gender**
Male	115
Female	172

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

**Age**
From 65 to 74	176
From 75 to 84	55
85 and over	27
Less than 65	29

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2016

Hypertension	55
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	21
Depression	16
Chronic Kidney Disease	17
Asthma	13
Osteoperosis	7
Atrial Fibrilation	9
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	22
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Michael O'Block, OD treated as an optometrist in Derry, NH during 2017 were eye procedures.

Volume of procedures performed by Dr. John Michael O'Block, OD for Medicare patients.

doctor visit	230
eye procedures	316

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Michael O'Block, OD.

**Gender**
Male	113
Female	181

**Ethnicity**
Non-Hispanic White	278
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	172
From 75 to 84	58
85 and over	26
Less than 65	38

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2017

Hypertension	52
High Cholesterol	47
Stroke	4
Ischemic Heart Disease	22
Depression	19
Chronic Kidney Disease	21
Asthma	6
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	8
Chronic Obstructive Pulmonary Disease	10
Diabetes	21
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Michael O'Block, OD treated as an optometrist in Derry, NH during 2018 were eye procedures.

Volume of procedures performed by Dr. John Michael O'Block, OD for Medicare patients.

doctor visit	217
eye procedures	358

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Michael O'Block, OD.

**Gender**
Male	117
Female	210

**Age**
From 65 to 74	197
From 75 to 84	68
85 and over	35
Less than 65	27

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2018

Hypertension	57
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	21
Depression	19
Chronic Kidney Disease	23
Asthma	6
Osteoperosis	9
Atrial Fibrilation	8
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	21
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Michael O'Block, OD treated as an optometrist in Derry, NH during 2019 were eye procedures.

Volume of procedures performed by Dr. John Michael O'Block, OD for Medicare patients.

doctor visit	222
eye procedures	441

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Michael O'Block, OD.

**Gender**
Male	133
Female	227

**Ethnicity**
Non-Hispanic White	340
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	217
From 75 to 84	83
85 and over	33
Less than 65	27

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2019

Hypertension	61
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	23
Depression	21
Chronic Kidney Disease	22
Asthma	6
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	12
Diabetes	20
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Michael O'Block, OD treated as an optometrist in Derry, NH during 2020 were eye procedures.

Volume of procedures performed by Dr. John Michael O'Block, OD for Medicare patients.

doctor visit	226
eye procedures	345

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Michael O'Block, OD.

**Gender**
Male	121
Female	217

**Ethnicity**
Non-Hispanic White	325
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	213
From 75 to 84	83
85 and over	22
Less than 65	20

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2020

Hypertension	58
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	25
Depression	25
Chronic Kidney Disease	20
Asthma	7
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	9
Chronic Obstructive Pulmonary Disease	12
Diabetes	21
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John Michael O'Block, OD treated as an optometrist in Derry, NH during 2021 were eye procedures.

Volume of procedures performed by Dr. John Michael O'Block, OD for Medicare patients.

doctor visit	419
eye procedures	288

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Michael O'Block, OD.

**Gender**
Male	127
Female	245

**Ethnicity**
Non-Hispanic White	355
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	225
From 75 to 84	93
85 and over	34
Less than 65	20

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2021

Hypertension	58
High Cholesterol	62
Stroke	4
Ischemic Heart Disease	25
Depression	21
Chronic Kidney Disease	23
Asthma	4
Osteoperosis	12
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	19
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Michael O'Block, OD treated as an optometrist in Derry, NH during 2022 were eye procedures.

Volume of procedures performed by Dr. John Michael O'Block, OD for Medicare patients.

doctor visit	571
eye procedures	179

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Michael O'Block, OD.

**Gender**
Male	150
Female	267

**Ethnicity**
Non-Hispanic White	400
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	252
From 75 to 84	118
85 and over	26
Less than 65	21

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2022

Hypertension	65
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	17
Depression	15
Chronic Kidney Disease	19
Asthma	12
Osteoperosis	15
Atrial Fibrilation	13
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	19
Dementia	4
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John Michael O'Block, OD for Medicare patients.

The highest averages for the top procedures that Dr. John Michael O'Block, OD treated as an optometrist in Derry, NH were eye procedures.

doctor visit	295
eye procedures	278

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John Michael O'Block, OD.

**Gender**
Male	112
Female	185

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	205
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	69
85 and over	26
Less than 65	26
65 to 74	175

Average of Total of Conditions of Medicare patients treated by Dr. John Michael O'Block, OD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. John Michael O'Block, OD treated were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	53
High Cholesterol	53
Stroke	2
Ischemic Heart Disease	20
Depression	18
Chronic Kidney Disease	18
Asthma	6
Osteoporosis	9
Heart Failure	9
Chronic Obstructive Pulmonary Disease	10
Diabetes	20
Atrial Fibrillation	9
Dementia	6
Cancer	9

Education & Training

He has a state license in New Hampshire.

Licensed In: New Hampshire

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. John Michael O'Block, OD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Bausch & Lomb, a division of Bausch Health US, LLC	$439 PROLENSA $140	ALREX $92	LOTEMAX GEL $88	VYZULTA $50	LOTEMAX $41	Other $27
Oyster Point Pharma, Inc.	$307 TYRVAYA $307
Allergan Inc.	$267 RESTASIS $145	LUMIGAN $122
Optos, Inc.	$258 PANORAMIC OPHTHALMOSCOPE $205	California $53
Aerie Pharmaceuticals, Inc.	$181 Rhopressa $131	Rocklatan $51
Other	$889 XIIDRA $214	RXSIGHT LIGHT ADJUSTABLE LENS (RXLAL) $150	Acuvue $81	PROLENSA $40	Travatan Z $40	Other $365

**Types of Payments**
Food and Beverage	$2,135
Entertainment	$205

Biography

Dr. John O'Block is an optometry (primary eye care) specialist in Derry, NH. Dr. O'Block has obtained a license to practice in New Hampshire.

Select Year:

Dr. John Michael O'Block, OD

Office Locations

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. John Michael O'Block, OD in 2013

Medicare Procedure and Patient Information

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Michael O'Block, OD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Michael O'Block, 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. John Michael O'Block, OD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

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