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Dr. Elizabeth C. Riordan, MD

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Specializes in: General Surgery

Professional interests include: breast surgery

455 Lewis Avenue Suite 208
Meriden, CT 06451

(203) 238-2691

Dr. Elizabeth C. Riordan, MD is a general surgeon in Southbury, CT specializing in general surgery. Dr. Elizabeth C. Riordan, MD is affiliated with Waterbury HEALTH.

Office Locations

32 Poverty Road
Southbury, CT 06488

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455 Lewis Avenue Suite 208
Meriden, CT 06451

(203) 238-2691

(203) 235-3128

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Elizabeth C. Riordan, MD treated as a general surgeon in Southbury, CT during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Elizabeth C. Riordan, MD for Medicare patients.

doctor visit	307
hospital care	111
inpatient care	111

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Elizabeth C. Riordan, MD treated as a general surgeon in Southbury, CT during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Elizabeth C. Riordan, MD for Medicare patients.

doctor visit	277
hospital care	35
inpatient care	35

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Elizabeth C. Riordan, MD.

**Gender**
Male	24
Female	153

**Ethnicity**
Non-Hispanic White	152
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	51
85 and over	25
Less than 65	37

Conditions of Medicare patients treated by Dr. Elizabeth C. Riordan, MD in 2013

Hypertension	66
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	25
Depression	28
Chronic Kidney Disease	18
Asthma	7
Osteoperosis	17
Atrial Fibrilation	11
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	28
Dementia	11
Cancer	48

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Elizabeth C. Riordan, MD treated as a general surgeon in Southbury, CT during 2014 were hospital care, inpatient care, excision and breast procedures.

Volume of procedures performed by Dr. Elizabeth C. Riordan, MD for Medicare patients.

breast procedures	14
cancer surgery	14
diagnostic procedures	13
doctor visit	276
excision	27
hospital care	29
inpatient care	29
lymph node procedures	13
open surgery	13

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Elizabeth C. Riordan, MD.

**Gender**
Male	28
Female	145

**Ethnicity**
Non-Hispanic White	152
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	74
From 75 to 84	51
85 and over	30
Less than 65	18

Conditions of Medicare patients treated by Dr. Elizabeth C. Riordan, MD in 2014

Hypertension	71
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	26
Depression	38
Chronic Kidney Disease	23
Asthma	10
Osteoperosis	20
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	29
Dementia	15
Cancer	47

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Elizabeth C. Riordan, MD treated as a general surgeon in Southbury, CT during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. Elizabeth C. Riordan, MD for Medicare patients.

doctor visit	257
hospital care	28
inpatient care	28

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Elizabeth C. Riordan, MD.

**Gender**
Male	58
Female	290

**Ethnicity**
Non-Hispanic White	288
Black	0
Hispanic	34
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	92
85 and over	52
Less than 65	74

Conditions of Medicare patients treated by Dr. Elizabeth C. Riordan, MD in 2015

Hypertension	73
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	24
Depression	36
Chronic Kidney Disease	26
Asthma	17
Osteoperosis	14
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	9
Cancer	55

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Elizabeth C. Riordan, MD treated as a general surgeon in Southbury, CT during 2016 were excision, open surgery, diagnostic procedures and lymph node procedures.

Volume of procedures performed by Dr. Elizabeth C. Riordan, MD for Medicare patients.

breast procedures	14
cancer surgery	14
diagnostic procedures	18
doctor visit	222
excision	32
lymph node procedures	18
open surgery	18

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Elizabeth C. Riordan, MD.

**Ethnicity**
Non-Hispanic White	98
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	47
From 75 to 84	37
85 and over	12
Less than 65	22

Conditions of Medicare patients treated by Dr. Elizabeth C. Riordan, MD in 2016

Hypertension	69
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	19
Depression	31
Chronic Kidney Disease	20
Asthma	19
Osteoperosis	9
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	9
Diabetes	20
Dementia	0
Cancer	72

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Elizabeth C. Riordan, MD treated as a general surgeon in Southbury, CT during 2017 were excision, lymph node procedures, breast procedures and cancer surgery.

Volume of procedures performed by Dr. Elizabeth C. Riordan, MD for Medicare patients.

breast procedures	14
cancer surgery	14
diagnostic procedures	11
doctor visit	277
excision	25
lymph node procedures	23
open surgery	11

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Elizabeth C. Riordan, MD.

**Ethnicity**
Non-Hispanic White	127
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	70
From 75 to 84	41
85 and over	21
Less than 65	20

Conditions of Medicare patients treated by Dr. Elizabeth C. Riordan, MD in 2017

Hypertension	71
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	18
Depression	27
Chronic Kidney Disease	20
Asthma	11
Osteoperosis	13
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	8
Diabetes	26
Dementia	0
Cancer	66

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Elizabeth C. Riordan, MD treated as a general surgeon in Southbury, CT during 2018 were excision, lymph node procedures, breast procedures and cancer surgery.

Volume of procedures performed by Dr. Elizabeth C. Riordan, MD for Medicare patients.

breast procedures	22
cancer surgery	22
diagnostic procedures	17
doctor visit	254
excision	39
lymph node procedures	31
open surgery	17

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Elizabeth C. Riordan, MD.

**Ethnicity**
Non-Hispanic White	136
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	78
From 75 to 84	34
85 and over	23
Less than 65	18

Conditions of Medicare patients treated by Dr. Elizabeth C. Riordan, MD in 2018

Hypertension	59
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	23
Depression	22
Chronic Kidney Disease	18
Asthma	8
Osteoperosis	14
Atrial Fibrilation	8
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	24
Dementia	0
Cancer	69

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Elizabeth C. Riordan, MD for Medicare patients.

doctor visit	219

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Elizabeth C. Riordan, MD.

**Ethnicity**
Non-Hispanic White	106
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	36
85 and over	14
Less than 65	16

Conditions of Medicare patients treated by Dr. Elizabeth C. Riordan, MD in 2019

Hypertension	66
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	21
Depression	28
Chronic Kidney Disease	22
Asthma	10
Osteoperosis	22
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	26
Dementia	0
Cancer	68

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Elizabeth C. Riordan, MD for Medicare patients.

doctor visit	50

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Elizabeth C. Riordan, MD.

**Age**
From 65 to 74	25
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Elizabeth C. Riordan, MD in 2020

Hypertension	69
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	27
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	31
Dementia	0
Cancer	56

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Elizabeth C. Riordan, MD for Medicare patients.

doctor visit	56

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Elizabeth C. Riordan, MD.

**Gender**
Male	0
Female	39

**Age**
From 65 to 74	17
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Elizabeth C. Riordan, MD in 2021

Hypertension	54
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	0
Depression	31
Chronic Kidney Disease	31
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	36
Dementia	0
Cancer	46

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Elizabeth C. Riordan, MD for Medicare patients.

doctor visit	100

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Elizabeth C. Riordan, MD.

**Gender**
Male	0
Female	72

**Age**
From 65 to 74	28
From 75 to 84	30
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Elizabeth C. Riordan, MD in 2022

Hypertension	64
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	22
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	21
Dementia	0
Cancer	56

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Elizabeth C. Riordan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Elizabeth C. Riordan, MD treated as a general surgeon in Southbury, CT were hospital care, inpatient care, excision and lymph node procedures.

breast procedures	16
cancer surgery	16
diagnostic procedures	14
doctor visit	208
excision	30
hospital care	50
inpatient care	50
lymph node procedures	21
open surgery	14

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Elizabeth C. Riordan, MD.

**Gender**
Female	63
Male	10

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	0
Non-Hispanic White	96
Native American / Alaskan Native	0
Hispanic	5
Other	0

**Age**
85 and over	16
75 to 84	33
Less than 65	18
65 to 74	54

Average of Total of Conditions of Medicare patients treated by Dr. Elizabeth C. Riordan, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Elizabeth C. Riordan, MD treated were hypertension, high cholesterol, cancer and diabetes.

Hypertension	60
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	14
Depression	21
Chronic Kidney Disease	18
Asthma	7
Osteoporosis	11
Heart Failure	7
Chronic Obstructive Pulmonary Disease	6
Diabetes	24
Atrial Fibrillation	4
Dementia	3
Cancer	53

Education & Training

She is certified by the general surgery and specializes in breast surgery and has a state license in Connecticut.

Board Certification: general surgery and specializes in breast surgery

Licensed In: Connecticut

Affiliations & Hospitals

Dr. Elizabeth C. Riordan, MD is associated with these hospitals and organizations:

Waterbury HEALTH

Ratings & Reviews

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General Payments

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

**Payments by Company**
Carl Zeiss Meditec, Inc.	$1,408 IORT $1,408
Myriad Genetic Laboratories, Inc.	$312 myRisk $280	BRAC CDx $32
Stryker Corporation	$149 Surg - Neptune $149
Merck Sharp & Dohme LLC	$42 LYNPARZA $42
Kerecis Limited	$34 Kerecis Omega3 SurgiClose $34
Other	$112 Kcentra $29	OFIRMEV $19	Progel $15	TEFLARO $12	GELFOAM $11	Other $25

**Types of Payments**
Travel and Lodging	$1,234
Food and Beverage	$825

Biography

Dr. Elizabeth Riordan is a general surgery specialist in Meriden, CT and Southbury, CT. Areas of expertise for Dr. Riordan include breast surgery. She is professionally affiliated with Waterbury HEALTH. Dr. Riordan graduated from the University of Connecticut School of Medicine.