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Home > CT Providers > Family Physicians & Family Medicine Specialists

Dr. Daniel W. O'Neill, MD

(Dr. Daniel William O'Neill, M.D.)

(3 Ratings)

Specializes in: Family Medicine

Stony Brook University Medical Center, School of Medicine

Professional interests include: travel medicine, hospital care

330 Pomfret Street
Putnam, CT 06260

(860) 928-7704

Dr. Daniel W. O'Neill, MD is a family medicine practitioner in Putnam, CT specializing in family medicine. He graduated from Stony Brook University Medical Center, School of Medicine. Dr. Daniel W. O'Neill, MD is affiliated with Day Kimball Healthcare.

Office Locations

330 Pomfret Street
Putnam, CT 06260

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7 Kennedy Drive
Putnam, CT 06260

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Noteworthy Medicare Patient Procedures Performed by Dr. Daniel W. O'Neill, MD in 2024

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

Top 5%

By Affordability:

lab tests

urinalysis

urine tests

In 2024, Dr. Daniel W. O'Neill, MD had a list price for lab tests, urinalysis, and urine tests that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Connecticut. 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. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2012 were hospital care, inpatient care, preventive care and vaccines.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

doctor visit	674
hospital care	184
inpatient care	170
lab tests	40
nursing home care	53
outpatient care	14
preventive care	83
vaccines	83

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2013 were hospital care, inpatient care, nursing home care and preventive care.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

doctor visit	606
hospital care	183
inpatient care	156
lab tests	35
nursing home care	103
outpatient care	27
preventive care	82
vaccines	82

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	160
Female	153

**Ethnicity**
Non-Hispanic White	295
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	110
From 75 to 84	89
85 and over	56
Less than 65	58

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2013

Hypertension	70
High Cholesterol	57
Stroke	8
Ischemic Heart Disease	43
Depression	28
Chronic Kidney Disease	20
Asthma	9
Osteoperosis	5
Atrial Fibrilation	17
Heart Failure	22
Chronic Obstructive Pulmonary Disease	21
Diabetes	31
Dementia	13
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2014 were hospital care, inpatient care, preventive care and vaccines.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

doctor visit	726
hospital care	88
inpatient care	88
lab tests	47
nursing home care	25
preventive care	76
vaccines	76

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	176
Female	176

**Ethnicity**
Non-Hispanic White	334
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	129
From 75 to 84	88
85 and over	60
Less than 65	75

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2014

Hypertension	69
High Cholesterol	56
Stroke	5
Ischemic Heart Disease	39
Depression	26
Chronic Kidney Disease	23
Asthma	11
Osteoperosis	6
Atrial Fibrilation	16
Heart Failure	23
Chronic Obstructive Pulmonary Disease	23
Diabetes	29
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2015 were preventive care, vaccines, lab tests and nursing home care.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

doctor visit	807
lab tests	66
nursing home care	52
preventive care	70
vaccines	70

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	346
Female	308

**Ethnicity**
Non-Hispanic White	618
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	238
From 75 to 84	154
85 and over	112
Less than 65	150

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2015

Hypertension	62
High Cholesterol	49
Stroke	6
Ischemic Heart Disease	33
Depression	24
Chronic Kidney Disease	20
Asthma	14
Osteoperosis	5
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	21
Diabetes	26
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2016 were preventive care, vaccines, lab tests and nursing home care.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

doctor visit	881
ear procedures	12
lab tests	90
nursing home care	42
preventive care	117
vaccines	117

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	198
Female	208

**Ethnicity**
Non-Hispanic White	383
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	156
From 75 to 84	97
85 and over	69
Less than 65	84

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2016

Hypertension	65
High Cholesterol	53
Stroke	6
Ischemic Heart Disease	33
Depression	25
Chronic Kidney Disease	24
Asthma	27
Osteoperosis	7
Atrial Fibrilation	15
Heart Failure	18
Chronic Obstructive Pulmonary Disease	23
Diabetes	28
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2017 were nursing home care, preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

doctor visit	850
ear procedures	17
lab tests	53
nursing home care	130
preventive care	111
vaccines	111

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	183
Female	214

**Ethnicity**
Non-Hispanic White	372
Black	0
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	108
85 and over	66
Less than 65	76

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2017

Hypertension	65
High Cholesterol	53
Stroke	6
Ischemic Heart Disease	36
Depression	27
Chronic Kidney Disease	24
Asthma	9
Osteoperosis	6
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	22
Diabetes	30
Dementia	13
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2018 were nursing home care, preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

aspiration	18
doctor visit	708
hospital care	17
injections	18
inpatient care	17
lab tests	29
nursing home care	116
preventive care	97
vaccines	97

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	151
Female	187

**Ethnicity**
Non-Hispanic White	316
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	116
From 75 to 84	98
85 and over	50
Less than 65	74

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2018

Hypertension	63
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	32
Depression	30
Chronic Kidney Disease	30
Asthma	10
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	18
Chronic Obstructive Pulmonary Disease	22
Diabetes	27
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2019 were nursing home care, preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

aspiration	16
doctor visit	762
injections	16
lab tests	35
nursing home care	64
preventive care	53
vaccines	53

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	156
Female	169

**Ethnicity**
Non-Hispanic White	308
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	133
From 75 to 84	76
85 and over	49
Less than 65	67

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2019

Hypertension	63
High Cholesterol	50
Stroke	6
Ischemic Heart Disease	31
Depression	30
Chronic Kidney Disease	32
Asthma	9
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	19
Diabetes	29
Dementia	14
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2020 were nursing home care, preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

doctor visit	746
hospital care	15
inpatient care	15
lab tests	28
nursing home care	118
preventive care	44
vaccines	44

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	149
Female	181

**Ethnicity**
Non-Hispanic White	311
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	79
85 and over	59
Less than 65	69

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2020

Hypertension	64
High Cholesterol	55
Stroke	5
Ischemic Heart Disease	28
Depression	28
Chronic Kidney Disease	28
Asthma	10
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	31
Dementia	15
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2021 were nursing home care, preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

doctor visit	625
hospital care	17
inpatient care	17
lab tests	23
nursing home care	114
preventive care	32
vaccines	32

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	143
Female	177

**Ethnicity**
Non-Hispanic White	301
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	97
85 and over	59
Less than 65	49

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2021

Hypertension	62
High Cholesterol	56
Stroke	5
Ischemic Heart Disease	27
Depression	24
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	18
Diabetes	27
Dementia	15
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2022 were nursing home care, lab tests, hospital care and inpatient care.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

doctor visit	542
hospital care	20
inpatient care	20
lab tests	26
nursing home care	74
preventive care	18
vaccines	18

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	134
Female	159

**Ethnicity**
Non-Hispanic White	277
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	98
From 75 to 84	97
85 and over	60
Less than 65	38

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2022

Hypertension	75
High Cholesterol	69
Stroke	8
Ischemic Heart Disease	26
Depression	21
Chronic Kidney Disease	19
Asthma	14
Osteoperosis	12
Atrial Fibrilation	22
Heart Failure	19
Chronic Obstructive Pulmonary Disease	27
Diabetes	29
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2023 were nursing home care, preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

doctor visit	552
hospital care	13
inpatient care	13
lab tests	20
nursing home care	68
preventive care	26
vaccines	26

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	136
Female	160

**Ethnicity**
Non-Hispanic White	275
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	100
From 75 to 84	93
85 and over	66
Less than 65	37

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2023

Hypertension	74
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	20
Depression	17
Chronic Kidney Disease	20
Asthma	11
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	14
Chronic Obstructive Pulmonary Disease	20
Diabetes	27
Dementia	10
Cancer	20

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT during 2024 were preventive care, vaccines, hospital care and inpatient care.

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

doctor visit	601
hospital care	22
inpatient care	22
lab tests	15
preventive care	25
vaccines	25

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	147
Female	160

**Ethnicity**
Non-Hispanic White	289
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	113
From 75 to 84	94
85 and over	66
Less than 65	34

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2024

Hypertension	70
High Cholesterol	67
Stroke	12
Ischemic Heart Disease	24
Depression	18
Chronic Kidney Disease	21
Asthma	14
Osteoperosis	11
Atrial Fibrilation	23
Heart Failure	20
Chronic Obstructive Pulmonary Disease	23
Diabetes	27
Dementia	11
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Daniel W. O'Neill, MD for Medicare patients.

The highest averages for the top procedures that Dr. Daniel W. O'Neill, MD treated as a family medicine practitioner in Putnam, CT were nursing home care, preventive care, vaccines and hospital care.

aspiration	17
doctor visit	698
ear procedures	14
hospital care	62
injections	17
inpatient care	57
lab tests	39
nursing home care	79
outpatient care	20
preventive care	64
vaccines	64

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Daniel W. O'Neill, MD.

**Gender**
Male	159
Female	173

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	313
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	90
85 and over	59
Less than 65	62
65 to 74	121

Average of Total of Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Daniel W. O'Neill, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	61
High Cholesterol	52
Stroke	5
Ischemic Heart Disease	28
Depression	22
Chronic Kidney Disease	22
Asthma	11
Osteoporosis	7
Heart Failure	16
Chronic Obstructive Pulmonary Disease	19
Diabetes	26
Atrial Fibrillation	14
Cancer	12
Dementia	10

Education & Training

Dr. Daniel W. O'Neill, MD graduated from Stony Brook University Medical Center, School of Medicine. He completed residency at Naval Hospital Pensacola. He is certified by the American Academy of Family Physicians, Christian Medical Association and has a state license in Connecticut.

Medical School: Stony Brook University Medical Center, School of Medicine

Residency: Naval Hospital Pensacola

Board Certification: American Academy of Family Physicians, Christian Medical Association

Licensed In: Connecticut

Affiliations & Hospitals

Dr. Daniel W. O'Neill, MD is associated with these hospitals and organizations:

Day Kimball Healthcare

Ratings & Reviews

Dr. Daniel W. O'Neill, MD has an exceptional overall rating with an average of 4.67 out of 5 stars based on 3 ratings. We collect ratings and reviews of Dr. Daniel W. O'Neill, MD from all over the web to help you find the right in Putnam, CT.

4.67

Overall Rating

(3 Ratings)

Leave a Review

General Payments

These charts describe general payments received by Dr. Daniel W. O'Neill, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
GlaxoSmithKline, LLC.	$1,341 ANORO $207	BREO $125	TRELEGY ELLIPTA $123	ANORO ELLIPTA $35	BOOSTRIX $23	Other $829
Boehringer Ingelheim Pharmaceuticals, Inc.	$1,330 JARDIANCE $420	SPIRIVA RESPIMAT $401	GLYXAMBI $230	STIOLTO $77	SYNJARDY $49	Other $152
AstraZeneca Pharmaceuticals LP	$1,211 FARXIGA $558	SYMBICORT $255	BRILINTA $58	BYDUREON WEEKLY $36	BREZTRI $33	Other $271
Novo Nordisk Inc	$801 Ozempic $286	RYBELSUS $172	Saxenda $88	NovoLog $82	Xultophy 100/3.6 $79	Other $94
Pfizer Inc.	$787 COLOGUARD $163	NURTEC ODT $153	LYRICA $131	ZAVZPRET $75	ELIQUIS $66	Other $200
Other	$5,231 TOUJEO $324	XARELTO $258	Myrbetriq $248	INVOKANA $235	UBRELVY $217	Other $3,948

**Types of Payments**
Food and Beverage	$10,234
Education	$468

Biography

Dr. Daniel O'Neill practices family medicine. He studied medicine at Stony Brook University Medical Center, School of Medicine.

Select Year:

Dr. Daniel W. O'Neill, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Daniel W. O'Neill, MD in 2024

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. Daniel W. O'Neill, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel W. O'Neill, 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. Daniel W. O'Neill, MD From 2012 - 2024

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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