In 2012, Dr. John David Lonsdale, MD performed more laser eye surgery, laser iridectomy, and laser iridotomy procedures for Medicare patients than 75% of providers in related specialties within Maine.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2012 were eye procedures, ultrasound (sonogram), laser treatment and capsulotomy.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	170
cyst removal	15
doctor visit	1134
excision	65
eye procedures	5722
laser treatment	193
plastic surgery procedures	78
removal of lesion (e.g. growth)	42
ultrasound (sonogram)	478

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2013 were eye procedures, ultrasound (sonogram), laser treatment and capsulotomy.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	179
doctor visit	1055
excision	55
eye procedures	5661
lacrimal (tearing system) procedures	16
laser treatment	207
plastic surgery procedures	18
removal of lesion (e.g. growth)	27
ultrasound (sonogram)	562

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	800
Female	1522

**Ethnicity**
Non-Hispanic White	2278
Black	0
Hispanic	0
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	689
From 75 to 84	897
85 and over	546
Less than 65	190

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2013

Hypertension	64
High Cholesterol	56
Stroke	4
Ischemic Heart Disease	30
Depression	22
Chronic Kidney Disease	21
Asthma	5
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2014 were eye procedures, ultrasound (sonogram), laser treatment and capsulotomy.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	110
doctor visit	965
excision	46
eye procedures	4902
laser treatment	135
plastic surgery procedures	20
removal of lesion (e.g. growth)	21
ultrasound (sonogram)	333

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	740
Female	1444

**Ethnicity**
Non-Hispanic White	2137
Black	0
Hispanic	0
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	613
From 75 to 84	850
85 and over	524
Less than 65	197

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2014

Hypertension	64
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	29
Depression	23
Chronic Kidney Disease	19
Asthma	5
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2015 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	105
doctor visit	580
excision	15
eye procedures	4780
laser treatment	105
plastic surgery procedures	48
removal of lesion (e.g. growth)	15
ultrasound (sonogram)	241

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	1308
Female	2670

**Ethnicity**
Non-Hispanic White	3884
Black	0
Hispanic	0
Asian	0
Other	42
Native American	0

**Age**
From 65 to 74	1214
From 75 to 84	1448
85 and over	986
Less than 65	330

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2015

Hypertension	62
High Cholesterol	49
Stroke	4
Ischemic Heart Disease	28
Depression	22
Chronic Kidney Disease	20
Asthma	9
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	27
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2016 were eye procedures, ultrasound (sonogram), laser treatment and capsulotomy.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	103
doctor visit	722
excision	24
eye procedures	4147
laser treatment	127
plastic surgery procedures	17
ultrasound (sonogram)	223

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	644
Female	1205

**Ethnicity**
Non-Hispanic White	1804
Black	0
Hispanic	0
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	555
From 75 to 84	642
85 and over	467
Less than 65	185

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2016

Hypertension	63
High Cholesterol	47
Stroke	4
Ischemic Heart Disease	28
Depression	24
Chronic Kidney Disease	22
Asthma	16
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	10
Cancer	7

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2017 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	91
doctor visit	899
eye procedures	3992
laser treatment	91
plastic surgery procedures	13
ultrasound (sonogram)	243

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	619
Female	1164

**Ethnicity**
Non-Hispanic White	1727
Black	0
Hispanic	13
Asian	0
Other	29
Native American	0

**Age**
From 65 to 74	567
From 75 to 84	619
85 and over	437
Less than 65	160

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2017

Hypertension	64
High Cholesterol	38
Stroke	3
Ischemic Heart Disease	27
Depression	26
Chronic Kidney Disease	23
Asthma	5
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Dementia	11
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2018 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	75
doctor visit	714
eye procedures	3550
laser treatment	75
plastic surgery procedures	26
ultrasound (sonogram)	163

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	572
Female	1060

**Ethnicity**
Non-Hispanic White	1576
Black	0
Hispanic	0
Asian	0
Other	34
Native American	0

**Age**
From 65 to 74	517
From 75 to 84	582
85 and over	411
Less than 65	122

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2018

Hypertension	66
High Cholesterol	55
Stroke	4
Ischemic Heart Disease	28
Depression	25
Chronic Kidney Disease	24
Asthma	5
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	0
Dementia	10
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2019 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	67
doctor visit	783
eye procedures	3203
laser treatment	67
ultrasound (sonogram)	138

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	506
Female	919

**Ethnicity**
Non-Hispanic White	1373
Black	0
Hispanic	0
Asian	0
Other	34
Native American	0

**Age**
From 65 to 74	451
From 75 to 84	509
85 and over	358
Less than 65	107

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2019

Hypertension	64
High Cholesterol	55
Stroke	4
Ischemic Heart Disease	29
Depression	24
Chronic Kidney Disease	26
Asthma	6
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	28
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2020 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	59
doctor visit	638
eye procedures	1701
laser treatment	59

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	273
Female	507

**Ethnicity**
Non-Hispanic White	753
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	243
From 75 to 84	268
85 and over	207
Less than 65	62

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2020

Hypertension	62
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	30
Depression	23
Chronic Kidney Disease	27
Asthma	6
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	14
Diabetes	26
Dementia	9
Cancer	7

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2021 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	58
doctor visit	565
eye procedures	1832
laser treatment	58

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	316
Female	529

**Ethnicity**
Non-Hispanic White	820
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	244
From 75 to 84	320
85 and over	221
Less than 65	60

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2021

Hypertension	61
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	30
Depression	25
Chronic Kidney Disease	26
Asthma	7
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	26
Dementia	11
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2022 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	39
doctor visit	351
eye procedures	1560
laser treatment	39

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	257
Female	453

**Ethnicity**
Non-Hispanic White	684
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	193
From 75 to 84	274
85 and over	199
Less than 65	44

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2022

Hypertension	72
High Cholesterol	74
Stroke	6
Ischemic Heart Disease	22
Depression	21
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	14
Atrial Fibrilation	21
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	22
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2023 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	56
doctor visit	707
eye procedures	1364
laser treatment	56

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	254
Female	475

**Ethnicity**
Non-Hispanic White	699
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	211
From 75 to 84	297
85 and over	181
Less than 65	40

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2023

Hypertension	72
High Cholesterol	73
Stroke	7
Ischemic Heart Disease	22
Depression	20
Chronic Kidney Disease	23
Asthma	10
Osteoperosis	15
Atrial Fibrilation	19
Heart Failure	15
Chronic Obstructive Pulmonary Disease	16
Diabetes	25
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME during 2024 were eye procedures, laser treatment, capsulotomy and excision.

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

capsulotomy	49
doctor visit	628
excision	22
eye procedures	1436
laser treatment	71

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	250
Female	433

**Ethnicity**
Non-Hispanic White	649
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	190
From 75 to 84	292
85 and over	166
Less than 65	35

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2024

Hypertension	71
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	20
Depression	19
Chronic Kidney Disease	25
Asthma	10
Osteoperosis	15
Atrial Fibrilation	19
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	27
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. John David Lonsdale, MD for Medicare patients.

The highest averages for the top procedures that Dr. John David Lonsdale, MD treated as an ophthalmologist in Lewiston, ME were eye procedures, ultrasound (sonogram), laser treatment and capsulotomy.

capsulotomy	89
cyst removal	15
doctor visit	749
excision	37
eye procedures	3373
lacrimal (tearing system) procedures	16
laser treatment	98
plastic surgery procedures	31
removal of lesion (e.g. growth)	26
ultrasound (sonogram)	297

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. John David Lonsdale, MD.

**Gender**
Male	503
Female	952

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	1414
Native American / Alaskan Native	0
Hispanic	1
Other	15

**Age**
75 to 84	538
85 and over	361
Less than 65	117
65 to 74	437

Average of Total of Conditions of Medicare patients treated by Dr. John David Lonsdale, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. John David Lonsdale, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	60
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	24
Depression	21
Chronic Kidney Disease	21
Asthma	7
Osteoporosis	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	22
Atrial Fibrillation	13
Cancer	8
Dementia	8

Education & Training

He has a state license in Maine.

Licensed In: Maine

Ratings & Reviews

Dr. John David Lonsdale, MD has a high overall rating with an average of 4.0 out of 5 stars based on 2 ratings. We collect ratings and reviews of Dr. John David Lonsdale, MD from all over the web to help you find the right in Lewiston, ME.

Overall Rating

(2 Ratings)

Leave a Review

General Payments

These charts describe general payments received by Dr. John David Lonsdale, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
AbbVie Inc.	$458 LUMIGAN $357	ALPHAGAN P $62	VUITY $39
Allergan Inc.	$435 RESTASIS $211	COMBIGAN $104	LASTACAFT $84	LUMIGAN $35
Alcon Laboratories Inc	$254 Cataract Equipment $109	Ilevro $50	ReSTOR $49	Pazeo $22	Contact Lenses $12	Other $13
Allergan, Inc.	$206 LUMIGAN $154	VUITY $35	DURYSTA $15	RESTASIS $2
Sun Pharmaceutical Industries Inc.	$190 CEQUA $130	XELPROS $41	Bromsite $19
Other	$457 XIIDRA $90	TYRVAYA $74	AcrySof IQ PanOptix $49	MIEBO $46	CLAREON $41	Other $158

**Types of Payments**
Food and Beverage	$1,916
Education	$84

Research Payments

Dr. John David Lonsdale, MD has received 6 research payments totaling $106,275.

Biography

Dr. John Lonsdale's area of specialization is ophthalmology (eye disease). He graduated from MCP Hahnemann School of Medicine.

Select Year:

Dr. John David Lonsdale, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. John David Lonsdale, MD in 2024

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. John David Lonsdale, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John David Lonsdale, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. John David Lonsdale, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Research Payments

Biography

Ophthalmologists in Nearby Locations

Other Providers in Lewiston, ME