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Home > NH Providers > Retina Specialists

Dr. Nancy Diane Efferson-Bonachea, MD

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Specializes in: Vitreoretinal Diseases (Retina and Vitreous)

25 Buttrick Road Suite C3
Londonderry, NH 03053

(603) 432-8801

Dr. Nancy Diane Efferson-Bonachea, MD is a retina specialist in Londonderry, NH specializing in vitreoretinal diseases (retina and vitreous).

Office Locations

25 Buttrick Road Suite C3
Londonderry, NH 03053

(603) 432-8801

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764 2nd Street
Manchester, NH 03102

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Noteworthy Medicare Patient Procedures Performed by Dr. Nancy Diane Efferson-Bonachea, MD in 2023

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

Top 5%

By Affordability:

fundus photography

intraocular injection

In 2023, Dr. Nancy Diane Efferson-Bonachea, MD had a list price for fundus photography, and intraocular injection that was lower than the list prices billed to Medicare by 95% of providers in related specialties within New Hampshire. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 10%

By Volume:

SCODI of the posterior segment

By Affordability:

intravitreal drug injection

intravitreal injection

scanning computerized ophthalmic diagnostic imaging

SCODI of the posterior segment

visual field test

In 2023, among providers in related specialties within New Hampshire, Dr. Nancy Diane Efferson-Bonachea, MD performed more SCODI of the posterior segment (SCODI-P) procedures for Medicare patients than 90% of them and she also had a list price for intravitreal drug injection, intravitreal injection, scanning computerized ophthalmic diagnostic imaging (SCODI), SCODI of the posterior segment (SCODI-P), and visual field test that was lower than the list prices billed to Medicare by 90% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 25%

By Volume:

eye procedures

By Affordability:

eye injection

eye tests

In 2012, among providers in related specialties within New Hampshire, Dr. Nancy Diane Efferson-Bonachea, MD performed more eye procedures procedures for Medicare patients than 75% of them and she also had a list price for eye injection, and eye tests that was lower than the list prices billed to Medicare by 75% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH during 2012 were eye procedures, injections, ultrasound (sonogram) and diagnostic imaging.

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

capsulotomy	17
diagnostic imaging	39
doctor visit	236
eye procedures	4725
injections	595
laser treatment	17
photocoagulation	26
prophylaxis (preventive treatment)	13
ultrasound (sonogram)	63

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH during 2013 were eye procedures, injections, ultrasound (sonogram) and diagnostic imaging.

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

diagnostic imaging	51
doctor visit	296
eye procedures	4801
injections	625
photocoagulation	11
prophylaxis (preventive treatment)	11
ultrasound (sonogram)	69

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD.

**Gender**
Male	390
Female	616

**Ethnicity**
Non-Hispanic White	976
Black	0
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	364
From 75 to 84	354
85 and over	222
Less than 65	66

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2013

Hypertension	69
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	30
Depression	21
Chronic Kidney Disease	22
Asthma	5
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	39
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH during 2014 were eye procedures, injections, ultrasound (sonogram) and diagnostic imaging.

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

capsulotomy	14
diagnostic imaging	52
doctor visit	301
eye procedures	4677
injections	479
laser treatment	14
ultrasound (sonogram)	66

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD.

**Gender**
Male	407
Female	625

**Ethnicity**
Non-Hispanic White	998
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	389
From 75 to 84	356
85 and over	219
Less than 65	68

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2014

Hypertension	70
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	31
Depression	19
Chronic Kidney Disease	23
Asthma	7
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	39
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH during 2015 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

capsulotomy	30
diagnostic imaging	60
doctor visit	311
eye procedures	4438
injections	534
laser treatment	30
ultrasound (sonogram)	60

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD.

**Gender**
Male	820
Female	1204

**Ethnicity**
Non-Hispanic White	1946
Black	0
Hispanic	0
Asian	0
Other	32
Native American	0

**Age**
From 65 to 74	750
From 75 to 84	694
85 and over	422
Less than 65	158

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2015

Hypertension	66
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	27
Depression	20
Chronic Kidney Disease	25
Asthma	11
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	39
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH during 2016 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

capsulotomy	18
diagnostic imaging	43
doctor visit	191
eye procedures	4468
injections	606
laser treatment	18
ultrasound (sonogram)	43

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD.

**Gender**
Male	385
Female	576

**Ethnicity**
Non-Hispanic White	921
Black	0
Hispanic	0
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	358
From 75 to 84	337
85 and over	205
Less than 65	61

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2016

Hypertension	72
High Cholesterol	58
Stroke	5
Ischemic Heart Disease	29
Depression	20
Chronic Kidney Disease	30
Asthma	14
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	38
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH during 2017 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

diagnostic imaging	35
doctor visit	187
eye procedures	4685
injections	612
ultrasound (sonogram)	35

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD.

**Gender**
Male	394
Female	590

**Ethnicity**
Non-Hispanic White	935
Black	0
Hispanic	14
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	377
From 75 to 84	349
85 and over	204
Less than 65	54

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2017

Hypertension	68
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	30
Depression	21
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	38
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH during 2018 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

diagnostic imaging	38
doctor visit	116
eye procedures	4277
injections	602
ultrasound (sonogram)	38

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD.

**Gender**
Male	361
Female	559

**Ethnicity**
Non-Hispanic White	873
Black	0
Hispanic	0
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	340
From 75 to 84	370
85 and over	178
Less than 65	32

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2018

Hypertension	67
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	28
Depression	21
Chronic Kidney Disease	31
Asthma	6
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	36
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH during 2019 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

capsulotomy	14
diagnostic imaging	22
eye procedures	4074
injections	570
laser treatment	14
ultrasound (sonogram)	22

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD.

**Gender**
Male	332
Female	525

**Ethnicity**
Non-Hispanic White	819
Black	0
Hispanic	0
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	321
From 75 to 84	315
85 and over	183
Less than 65	38

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2019

Hypertension	67
High Cholesterol	62
Stroke	4
Ischemic Heart Disease	29
Depression	19
Chronic Kidney Disease	30
Asthma	5
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	12
Diabetes	36
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH during 2020 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

diagnostic imaging	23
eye procedures	3330
injections	533
ultrasound (sonogram)	23

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD.

**Gender**
Male	267
Female	453

**Ethnicity**
Non-Hispanic White	686
Black	0
Hispanic	0
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	249
From 75 to 84	289
85 and over	155
Less than 65	27

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2020

Hypertension	61
High Cholesterol	56
Stroke	4
Ischemic Heart Disease	30
Depression	19
Chronic Kidney Disease	31
Asthma	6
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	10
Diabetes	35
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH during 2021 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

diagnostic imaging	41
doctor visit	291
eye procedures	3425
injections	546
ultrasound (sonogram)	41

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD.

**Gender**
Male	282
Female	465

**Ethnicity**
Non-Hispanic White	710
Black	0
Hispanic	0
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	273
From 75 to 84	299
85 and over	152
Less than 65	23

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2021

Hypertension	65
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	29
Depression	18
Chronic Kidney Disease	31
Asthma	6
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	10
Diabetes	34
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH during 2022 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

capsulotomy	13
diagnostic imaging	25
doctor visit	528
eye procedures	2998
injections	480
laser treatment	13
ultrasound (sonogram)	25

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD.

**Gender**
Male	254
Female	433

**Ethnicity**
Non-Hispanic White	656
Black	0
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	240
From 75 to 84	280
85 and over	145
Less than 65	22

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2022

Hypertension	74
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	22
Depression	17
Chronic Kidney Disease	23
Asthma	9
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	7
Cancer	15

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH during 2023 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

diagnostic imaging	20
doctor visit	426
eye procedures	3048
injections	480
ultrasound (sonogram)	20

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD.

**Gender**
Male	261
Female	401

**Ethnicity**
Non-Hispanic White	626
Black	0
Hispanic	0
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	241
From 75 to 84	263
85 and over	141
Less than 65	17

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	22
Depression	18
Chronic Kidney Disease	23
Asthma	10
Osteoperosis	15
Atrial Fibrilation	16
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	31
Dementia	6
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Nancy Diane Efferson-Bonachea, MD for Medicare patients.

The highest averages for the top procedures that Dr. Nancy Diane Efferson-Bonachea, MD treated as a retina specialist in Londonderry, NH were eye procedures, injections, ultrasound (sonogram) and diagnostic imaging.

capsulotomy	17
diagnostic imaging	37
doctor visit	288
eye procedures	4078
injections	555
laser treatment	17
photocoagulation	18
prophylaxis (preventive treatment)	12
ultrasound (sonogram)	42

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD.

**Gender**
Male	346
Female	537

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	845
Hispanic	3
Native American / Alaskan Native	0
Other	15

**Age**
75 to 84	325
85 and over	185
Less than 65	47
65 to 74	325

Average of Total of Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Nancy Diane Efferson-Bonachea, MD treated were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	62
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	25
Depression	17
Chronic Kidney Disease	25
Asthma	7
Osteoporosis	9
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	33
Atrial Fibrillation	11
Cancer	10
Dementia	8

Education & Training

She 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. Nancy Diane Efferson-Bonachea, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Apellis Pharmaceuticals, Inc.	$274 SYFOVRE $83	$191
Regeneron Healthcare Solutions, Inc.	$238 EYLEA aflibercept injection $94	EYLEA HD $79	Eylea $65
OPTOVUE, INC.	$141 OCT $141
Genentech USA, Inc.	$111 VABYSMO $111
Allergan Inc.	$98 RESTASIS $81	LUMIGAN $17
Other	$227 EYLEA (aflibercept) Injection $73	None Specified $39	TYRVAYA $16	ILUVIEN $10	$89

**Types of Payments**
Food and Beverage	$1,034
Gift	$39
Education	$17

Biography

Dr. Nancy Efferson-Bonachea, who practices in Londonderry, NH and Manchester, NH, is a medical specialist in vitreoretinal diseases (retina and vitreous). She is a graduate of Tufts University School of Medicine.

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Dr. Nancy Diane Efferson-Bonachea, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Nancy Diane Efferson-Bonachea, MD in 2023

By Affordability:

By Volume:

By Affordability:

By Volume:

By Affordability:

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. Nancy Diane Efferson-Bonachea, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Nancy Diane Efferson-Bonachea, MD From 2012 - 2023

Education & Training

Ratings & Reviews

General Payments

Biography

Retina Specialists in Nearby Locations

Other Providers in Londonderry, NH