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Dr. Catharine Ann Arnold, MD

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Specializes in: Adult Rheumatology

Yale School of Medicine (1986)

Professional interests include: scleroderma, lupus, giant cell arteritis (temporal arteritis), and more.

385 Church Street Suite 101
Guilford, CT 06437

(203) 453-0361

Dr. Catharine Ann Arnold, MD is a rheumatologist in Guilford, CT specializing in adult rheumatology. She graduated from Yale School of Medicine in 1986 and has 40 years of experience. Dr. Catharine Ann Arnold, MD is affiliated with Yale University, Yale New Haven Health, Northeast Medical Group (NEMG) and NORTHEAST MEDICAL GROUP INC.

Office Locations

Northeast Medical Group (NEMG)

385 Church Street Suite 101
Guilford, CT 06437

(203) 453-1516

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Noteworthy Medicare Patient Procedures Performed by Dr. Catharine Ann Arnold, MD in 2023

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

Top 5%

By Volume:

flu shot

urinalysis

By Affordability:

lab tests

In 2023, among providers in related specialties within Connecticut, Dr. Catharine Ann Arnold, MD performed more flu shot, and urinalysis procedures for Medicare patients than 95% of them and she also had a list price for lab tests that was lower than the list prices billed to Medicare by 95% 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. Catharine Ann Arnold, MD treated as a rheumatologist in Guilford, CT during 2012 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and preventive care.

Volume of procedures performed by Dr. Catharine Ann Arnold, MD for Medicare patients.

aspiration	34
biological response modifier (BRM) therapy	230
cardiac procedures	13
chemotherapy	230
doctor visit	1404
injections	34
lab tests	30
minimally invasive procedures	246
preventive care	137
skin testing	16
tuberculosis (TB) testing	16
vaccines	113

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Catharine Ann Arnold, MD treated as a rheumatologist in Guilford, CT during 2013 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and preventive care.

Volume of procedures performed by Dr. Catharine Ann Arnold, MD for Medicare patients.

aspiration	42
biological response modifier (BRM) therapy	228
chemotherapy	228
doctor visit	1619
injections	42
lab tests	50
minimally invasive procedures	246
preventive care	201
skin testing	20
tuberculosis (TB) testing	20
vaccines	178

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Catharine Ann Arnold, MD.

**Gender**
Male	162
Female	551

**Ethnicity**
Non-Hispanic White	688
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	299
From 75 to 84	240
85 and over	147
Less than 65	27

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2013

Hypertension	69
High Cholesterol	47
Stroke	2
Ischemic Heart Disease	23
Depression	17
Chronic Kidney Disease	12
Asthma	6
Osteoperosis	16
Atrial Fibrilation	15
Heart Failure	12
Chronic Obstructive Pulmonary Disease	11
Diabetes	16
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Catharine Ann Arnold, MD treated as a rheumatologist in Guilford, CT during 2014 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and preventive care.

Volume of procedures performed by Dr. Catharine Ann Arnold, MD for Medicare patients.

aspiration	45
biological response modifier (BRM) therapy	256
chemotherapy	256
doctor visit	1974
injections	45
lab tests	90
minimally invasive procedures	256
preventive care	190
skin testing	18
tuberculosis (TB) testing	18
vaccines	179

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Catharine Ann Arnold, MD.

**Gender**
Male	214
Female	628

**Ethnicity**
Non-Hispanic White	805
Black	14
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	360
From 75 to 84	260
85 and over	181
Less than 65	41

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2014

Hypertension	70
High Cholesterol	48
Stroke	3
Ischemic Heart Disease	22
Depression	20
Chronic Kidney Disease	12
Asthma	6
Osteoperosis	14
Atrial Fibrilation	13
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	18
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Catharine Ann Arnold, MD treated as a rheumatologist in Guilford, CT during 2015 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and preventive care.

Volume of procedures performed by Dr. Catharine Ann Arnold, MD for Medicare patients.

aspiration	43
biological response modifier (BRM) therapy	246
chemotherapy	246
doctor visit	1421
injections	43
lab tests	48
minimally invasive procedures	246
preventive care	180
skin testing	25
tuberculosis (TB) testing	25
vaccines	150

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Catharine Ann Arnold, MD.

**Gender**
Male	352
Female	1110

**Ethnicity**
Non-Hispanic White	1386
Black	0
Hispanic	22
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	634
From 75 to 84	486
85 and over	278
Less than 65	64

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2015

Hypertension	72
High Cholesterol	48
Stroke	4
Ischemic Heart Disease	23
Depression	20
Chronic Kidney Disease	15
Asthma	9
Osteoperosis	17
Atrial Fibrilation	14
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	18
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Catharine Ann Arnold, MD treated as a rheumatologist in Guilford, CT during 2016 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and preventive care.

Volume of procedures performed by Dr. Catharine Ann Arnold, MD for Medicare patients.

aspiration	51
biological response modifier (BRM) therapy	253
chemotherapy	253
doctor visit	1369
injections	51
lab tests	53
minimally invasive procedures	253
preventive care	190
skin testing	35
tuberculosis (TB) testing	35
vaccines	143

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Catharine Ann Arnold, MD.

**Gender**
Male	152
Female	555

**Ethnicity**
Non-Hispanic White	667
Black	0
Hispanic	0
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	319
From 75 to 84	241
85 and over	125
Less than 65	22

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2016

Hypertension	69
High Cholesterol	46
Stroke	2
Ischemic Heart Disease	22
Depression	18
Chronic Kidney Disease	17
Asthma	15
Osteoperosis	18
Atrial Fibrilation	13
Heart Failure	12
Chronic Obstructive Pulmonary Disease	11
Diabetes	18
Dementia	11
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Catharine Ann Arnold, MD treated as a rheumatologist in Guilford, CT during 2017 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and preventive care.

Volume of procedures performed by Dr. Catharine Ann Arnold, MD for Medicare patients.

aspiration	25
biological response modifier (BRM) therapy	315
chemotherapy	315
doctor visit	1624
injections	25
lab tests	88
minimally invasive procedures	315
preventive care	129
skin testing	38
tuberculosis (TB) testing	38
vaccines	79

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Catharine Ann Arnold, MD.

**Gender**
Male	166
Female	605

**Ethnicity**
Non-Hispanic White	715
Black	11
Hispanic	0
Asian	0
Other	29
Native American	0

**Age**
From 65 to 74	362
From 75 to 84	245
85 and over	138
Less than 65	26

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2017

Hypertension	70
High Cholesterol	40
Stroke	4
Ischemic Heart Disease	20
Depression	20
Chronic Kidney Disease	19
Asthma	7
Osteoperosis	20
Atrial Fibrilation	13
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	17
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Catharine Ann Arnold, MD treated as a rheumatologist in Guilford, CT during 2018 were preventive care, lab tests, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Catharine Ann Arnold, MD for Medicare patients.

aspiration	23
biological response modifier (BRM) therapy	75
chemotherapy	75
doctor visit	1613
ear procedures	15
injections	23
lab tests	83
minimally invasive procedures	75
preventive care	97
skin testing	21
tuberculosis (TB) testing	21
vaccines	48

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Catharine Ann Arnold, MD.

**Gender**
Male	148
Female	575

**Ethnicity**
Non-Hispanic White	674
Black	0
Hispanic	0
Asian	0
Other	29
Native American	0

**Age**
From 65 to 74	347
From 75 to 84	234
85 and over	116
Less than 65	26

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2018

Hypertension	69
High Cholesterol	51
Stroke	3
Ischemic Heart Disease	22
Depression	23
Chronic Kidney Disease	17
Asthma	7
Osteoperosis	21
Atrial Fibrilation	15
Heart Failure	13
Chronic Obstructive Pulmonary Disease	8
Diabetes	15
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Catharine Ann Arnold, MD treated as a rheumatologist in Guilford, CT during 2019 were preventive care, vaccines, lab tests and aspiration.

Volume of procedures performed by Dr. Catharine Ann Arnold, MD for Medicare patients.

aspiration	24
doctor visit	1102
injections	24
lab tests	24
preventive care	84
vaccines	84

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Catharine Ann Arnold, MD.

**Gender**
Male	83
Female	405

**Ethnicity**
Non-Hispanic White	451
Black	0
Hispanic	0
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	217
From 75 to 84	168
85 and over	83
Less than 65	20

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2019

Hypertension	74
High Cholesterol	63
Stroke	3
Ischemic Heart Disease	23
Depression	27
Chronic Kidney Disease	19
Asthma	7
Osteoperosis	25
Atrial Fibrilation	17
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	17
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Catharine Ann Arnold, MD treated as a rheumatologist in Guilford, CT during 2020 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Catharine Ann Arnold, MD for Medicare patients.

doctor visit	806
lab tests	15
preventive care	142
vaccines	142

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Catharine Ann Arnold, MD.

**Gender**
Male	84
Female	361

**Ethnicity**
Non-Hispanic White	411
Black	0
Hispanic	0
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	190
From 75 to 84	158
85 and over	77
Less than 65	20

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2020

Hypertension	68
High Cholesterol	62
Stroke	4
Ischemic Heart Disease	22
Depression	24
Chronic Kidney Disease	21
Asthma	8
Osteoperosis	25
Atrial Fibrilation	16
Heart Failure	10
Chronic Obstructive Pulmonary Disease	12
Diabetes	16
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Catharine Ann Arnold, MD treated as a rheumatologist in Guilford, CT during 2021 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Catharine Ann Arnold, MD for Medicare patients.

doctor visit	979
lab tests	16
preventive care	118
vaccines	118

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Catharine Ann Arnold, MD.

**Gender**
Male	85
Female	374

**Ethnicity**
Non-Hispanic White	418
Black	0
Hispanic	0
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	189
From 75 to 84	167
85 and over	80
Less than 65	23

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2021

Hypertension	70
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	24
Depression	27
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	27
Atrial Fibrilation	17
Heart Failure	9
Chronic Obstructive Pulmonary Disease	12
Diabetes	15
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Catharine Ann Arnold, MD treated as a rheumatologist in Guilford, CT during 2022 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Catharine Ann Arnold, MD for Medicare patients.

diabetes management	27
doctor visit	985
lab tests	43
preventive care	152
vaccines	112

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Catharine Ann Arnold, MD.

**Gender**
Male	92
Female	380

**Ethnicity**
Non-Hispanic White	430
Black	0
Hispanic	0
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	189
From 75 to 84	176
85 and over	92
Less than 65	15

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	20
Depression	26
Chronic Kidney Disease	13
Asthma	12
Osteoperosis	33
Atrial Fibrilation	24
Heart Failure	11
Chronic Obstructive Pulmonary Disease	14
Diabetes	16
Dementia	8
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Catharine Ann Arnold, MD for Medicare patients.

The highest averages for the top procedures that Dr. Catharine Ann Arnold, MD treated as a rheumatologist in Guilford, CT were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and preventive care.

aspiration	35
biological response modifier (BRM) therapy	229
cardiac procedures	13
chemotherapy	229
diabetes management	27
doctor visit	1354
ear procedures	15
injections	35
lab tests	49
minimally invasive procedures	233
preventive care	147
skin testing	24
tuberculosis (TB) testing	24
vaccines	122

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Catharine Ann Arnold, MD.

**Gender**
Male	139
Female	504

**Ethnicity**
Black / African American	2
Asian / Pacific Islander	0
Non-Hispanic White	604
Native American / Alaskan Native	0
Hispanic	2
Other	19

**Age**
75 to 84	215
85 and over	119
Less than 65	25
65 to 74	282

Average of Total of Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Catharine Ann Arnold, MD treated were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension	64
High Cholesterol	49
Stroke	3
Ischemic Heart Disease	20
Depression	20
Chronic Kidney Disease	15
Asthma	7
Osteoporosis	19
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	15
Atrial Fibrillation	14
Dementia	8
Cancer	9

Education & Training

Dr. Catharine Ann Arnold, MD graduated from Yale School of Medicine in 1986. She completed residency at Yale-New Haven Hospital. She has a state license in Connecticut.

Medical School: Yale School of Medicine (1986)

Residency: Yale-New Haven Hospital

Licensed In: Connecticut

Affiliations & Hospitals

Dr. Catharine Ann Arnold, MD is associated with these hospitals and organizations:

Yale University

Yale New Haven Health

Northeast Medical Group (NEMG)

NORTHEAST MEDICAL GROUP INC

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Catharine Ann Arnold, MD appears to accept the following insurance providers: Neighborhood Health Plan, MagnaCare, MultiPlan, United Healthcare, Aetna, Oxford Health Plans, Medicare, Consumer Health Network, Medicaid, Cigna, Blue California, Anthem, ConnectiCare, Magellan Health Services, BEACON HEALTH OPTIONS (BEHAVIORAL), EVERNORTH (BEHAVIORAL HEALTH ONLY), TRICARE/CHAMPUS, OPTUM (BEHAVIORAL HEALTH ONLY) and VA COMMUNITY CARE NETWORK.

Insurance Accepted by Provider includes:

According to our sources, Dr. Catharine Ann Arnold, MD accepts the following insurance providers:

Neighborhood Health Plan

MagnaCare

MultiPlan

United Healthcare

Aetna

Oxford Health Plans

Medicare

Consumer Health Network

Medicaid

Cigna

Blue California

Anthem

ConnectiCare

Magellan Health Services

BEACON HEALTH OPTIONS (BEHAVIORAL)

EVERNORTH (BEHAVIORAL HEALTH ONLY)

TRICARE/CHAMPUS

OPTUM (BEHAVIORAL HEALTH ONLY)

VA COMMUNITY CARE NETWORK

Ratings & Reviews

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General Payments

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

**Payments by Company**
Janssen Biotech, Inc.	$189 STELARA $150	SIMPONI ARIA $24	REMICADE $14
Allergan Inc.	$68 VIIBRYD $57	NAMZARIC $12
Braeburn Pharmaceuticals, Inc.	$67 $67
FOREST PHARMACEUTICALS, INC.	$23 NAMENDA XR $12	LINZESS $11

**Types of Payments**
Food and Beverage	$347

Biography

Dr. Catharine Arnold is a specialist in adult rheumatology. Clinical interests for Dr. Arnold include polymyalgia rheumatica (PMR), polymyositis, and lupus. Dr. Arnold seems to honor Magellan Health Services, Anthem, Blue California, and more. She is a graduate of Yale School of Medicine and a graduate of Yale-New Haven Hospital's residency program. She is professionally affiliated with Northeast Medical Group (NEMG). Yale New Haven Health reports that Dr. Arnold is closed to new patients at this time.

Select Year:

Dr. Catharine Ann Arnold, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Catharine Ann Arnold, MD in 2023

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. Catharine Ann Arnold, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Catharine Ann Arnold, MD 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. Catharine Ann Arnold, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

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