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Dr. Anna C. Freitag, MD

Specializes in: Adult Endocrinology
University of Connecticut School of Medicine (1994)
Professional interests include: women's health issues, endocrine diseases (hormone disorders), diabetes, and more.
166 Waterbury Road Suite 202
Prospect, CT 06712

Dr. Anna C. Freitag, MD is an endocrinologist in Prospect, CT specializing in adult endocrinology. She graduated from University of Connecticut School of Medicine in 1994 and has 32 years of experience. Dr. Anna C. Freitag, MD is affiliated with Trinity Health of New England and TRINITY HEALTH OF NEW ENGLAND PROVIDER NETWORK ORGANIZATION INC.

View Doctor's Full Profile (203) 709-6000

Office Locations

166 Waterbury Road Suite 202
Prospect, CT 06712
open_in_new
56 Franklin Street
Waterbury, CT 06706
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Some issues Dr. Anna C. Freitag, MD can help you with:

Thyroid Problems

Thyroid problems are a group of conditions that alter hormone regulation and metabolism. The thyroid is a small, butterfly-shaped gland located in the lower neck, just below the Adam's apple (laryngeal prominence) and larynx (voice box). Despite its small size, the thyroid has an outsized effect on the body by regulating hormones that control metabolism. Metabolism is the body's process of converting consumed food into fuel to power the entire body. Heart rate, weight, cholesterol, body temperature, and even physical growth and development are all affected by the metabolism.

When the thyroid malfunctions, the body is unable to properly process and allocate energy. Thyroid problems, such as hyperthyroidism (overactive thyroid) and hypothyroidism (underactive thyroid), cause irregular metabolism. In some cases, the body produces antibodies that attack the thyroid cells for unknown reasons. The damaged thyroid responds by releasing either too little or too much T3 and T4 thyroid hormones. Thyroid malfunctions may also arise from genetic causes or iodine deficiency. Thyroid problems may include:

  • Hashimoto's thyroiditis, an autoimmune disease that causes hypothyroidism
  • Graves' disease, an autoimmune disease that causes hyperthyroidism
  • Goiter
  • Thyroid nodule
  • Thyroid cancer

Hashimoto's is the leading cause of hypothyroidism, which is when the thyroid does not produce enough hormones to stimulate adequate metabolism. The condition is diagnosed by blood tests that measure TSH (thyroid stimulating hormone) and detect Hashimoto's antibodies. Symptoms of hypothyroidism include sluggish metabolism, inflammation, fatigue, weight gain, brittle hair, dry skin, and sensitivity to cold. To supplement impaired thyroid function, patients with Hashimoto's are typically prescribed synthetic thyroid hormone pills. Such patients may need to consume synthetic thyroids for the rest of their lives. Other treatments may include dietary changes, such as the avoidance of certain foods and medication to reduce inflammation. Frequent blood tests can inform patients if their TSH levels are within a normal range.

Grave's disease is most frequently the cause of hyperthyroidism, which is when the thyroid produces too many hormones, overstimulating one's metabolism. The condition is also diagnosed by blood tests that measure TSH and detect Grave's antibodies. Elevated heart rate, high blood pressure, sweating, bulging eyes, and weight loss are common symptoms of hyperthyroidism. Treatments for hyperthyroidism include oral radioactive iodine, which slowly shrinks the thyroid, slowing the production of excess thyroid hormone. Other anti-thyroid medications such as methimazole (Tapazole) also reduce the production of thyroid hormones. Blood pressure medications known as beta blockers can ease the increased heart rate caused by hyperthyroidism. If treatments are unsuccessful, patients may be prescribed a thyroidectomy, or surgery to remove part or all of the thyroid. Some patients with hyperthyroidism may require ophthalmological (eye medicine) treatments such as eye drops, prednisone, and surgery to reduce eye swelling and bulging.

Untreated thyroid disorders frequently lead to goiters or thyroid nodules. A thyroid goiter is a large lump that can be felt near the base of the neck and is made of swollen thyroid tissue or nodules (excess cell growth). Nodules and goiters are diagnosed by CT scan or ultrasound. Obstructive goiters can cause pain, coughing, and abnormal breathing. The most common cause of goiters is hyperthyroidism (overactive thyroid). However, Hashimoto's is also known to cause goiters or nodules. Goiters develop from continued damage from antibodies to the thyroid over time. At times, a goiter can result from a cancerous thyroid tumor. Most goiters and nodules are themselves benign.

The exact causes of thyroid cancer are unknown. People who develop thyroid cancer may or may not have another thyroid problem such as Hashimoto's or Grave's disease. Symptoms of thyroid cancer include a nodule that can be felt on the neck, hoarseness, difficulty swallowing, swelling in the neck, and neck and throat pain. CT and MRI scans are used to diagnose thyroid cancer. There are four types of thyroid cancer which vary in intensity. Thyroidectomy (thyroid removal surgery) is usually prescribed to treat thyroid cancer.

Thyroid problems are often long-term conditions that require some form of treatment. With regular monitoring and medication, many people with thyroid problems are able to lead active and fulfilling lives.

Noteworthy Medicare Patient Procedures Performed by Dr. Anna C. Freitag, MD in 2023

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

Top 5%

By Affordability:

blood glucose self-monitoring
blood glucose tests
blood tests
diabetes management
finger stick glucose test
glucose monitoring
glucose tests
lab tests

In 2023, Dr. Anna C. Freitag, MD had a list price for blood glucose self-monitoring, blood glucose tests, blood tests, diabetes management, finger stick glucose test, glucose monitoring, glucose tests, and lab 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. Anna C. Freitag, MD treated as an endocrinologist in Prospect, CT during 2012 were ultrasound (sonogram) and neck imaging.

Volume of procedures performed by Dr. Anna C. Freitag, MD for Medicare patients.

doctor visit 256
neck imaging 15
ultrasound (sonogram) 15

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. Anna C. Freitag, MD for Medicare patients.

doctor visit 291

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Anna C. Freitag, MD.

Gender
Male 49
Female 107
Ethnicity
Non-Hispanic White 128
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 84
From 75 to 84 39
85 and over 13
Less than 65 20

Conditions of Medicare patients treated by Dr. Anna C. Freitag, MD in 2013

Hypertension 72
High Cholesterol 75
Stroke 0
Ischemic Heart Disease 28
Depression 21
Chronic Kidney Disease 35
Asthma 0
Osteoperosis 25
Atrial Fibrilation 12
Heart Failure 19
Chronic Obstructive Pulmonary Disease 0
Diabetes 58
Dementia 0
Cancer 10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. Anna C. Freitag, MD for Medicare patients.

doctor visit 170

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Anna C. Freitag, MD.

Gender
Male 40
Female 66
Ethnicity
Non-Hispanic White 84
Black 11
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 57
From 75 to 84 23
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Anna C. Freitag, MD in 2014

Hypertension 70
High Cholesterol 75
Stroke 0
Ischemic Heart Disease 34
Depression 32
Chronic Kidney Disease 32
Asthma 12
Osteoperosis 10
Atrial Fibrilation 0
Heart Failure 21
Chronic Obstructive Pulmonary Disease 14
Diabetes 64
Dementia 0
Cancer 12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Anna C. Freitag, MD treated as an endocrinologist in Prospect, CT during 2015 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Anna C. Freitag, MD for Medicare patients.

diabetes management 16
doctor visit 259
lab tests 16
preventive care 19
vaccines 19

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Anna C. Freitag, MD.

Gender
Male 112
Female 180
Ethnicity
Non-Hispanic White 202
Black 32
Hispanic 36
Asian 0
Other 0
Native American 0
Age
From 65 to 74 134
From 75 to 84 0
85 and over 0
Less than 65 90

Conditions of Medicare patients treated by Dr. Anna C. Freitag, MD in 2015

Hypertension 75
High Cholesterol 75
Stroke 0
Ischemic Heart Disease 34
Depression 34
Chronic Kidney Disease 38
Asthma 14
Osteoperosis 11
Atrial Fibrilation 0
Heart Failure 18
Chronic Obstructive Pulmonary Disease 11
Diabetes 70
Dementia 0
Cancer 8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Anna C. Freitag, MD treated as an endocrinologist in Prospect, CT during 2016 were lab tests, diabetes management, preventive care and vaccines.

Volume of procedures performed by Dr. Anna C. Freitag, MD for Medicare patients.

diabetes management 46
doctor visit 338
lab tests 46
preventive care 39
vaccines 39

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Anna C. Freitag, MD.

Gender
Male 56
Female 117
Ethnicity
Non-Hispanic White 113
Black 26
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 80
From 75 to 84 0
85 and over 0
Less than 65 57

Conditions of Medicare patients treated by Dr. Anna C. Freitag, MD in 2016

Hypertension 75
High Cholesterol 75
Stroke 0
Ischemic Heart Disease 32
Depression 31
Chronic Kidney Disease 61
Asthma 20
Osteoperosis 16
Atrial Fibrilation 9
Heart Failure 20
Chronic Obstructive Pulmonary Disease 12
Diabetes 72
Dementia 8
Cancer 0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Anna C. Freitag, MD treated as an endocrinologist in Prospect, CT during 2017 were lab tests and diabetes management.

Volume of procedures performed by Dr. Anna C. Freitag, MD for Medicare patients.

diabetes management 35
doctor visit 375
lab tests 35

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Anna C. Freitag, MD.

Gender
Male 51
Female 124
Ethnicity
Non-Hispanic White 120
Black 0
Hispanic 26
Asian 0
Other 0
Native American 0
Age
From 65 to 74 83
From 75 to 84 32
85 and over 11
Less than 65 49

Conditions of Medicare patients treated by Dr. Anna C. Freitag, MD in 2017

Hypertension 75
High Cholesterol 75
Stroke 0
Ischemic Heart Disease 35
Depression 41
Chronic Kidney Disease 61
Asthma 18
Osteoperosis 15
Atrial Fibrilation 10
Heart Failure 23
Chronic Obstructive Pulmonary Disease 11
Diabetes 67
Dementia 11
Cancer 0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Anna C. Freitag, MD treated as an endocrinologist in Prospect, CT during 2018 were lab tests and diabetes management.

Volume of procedures performed by Dr. Anna C. Freitag, MD for Medicare patients.

diabetes management 65
doctor visit 484
lab tests 65

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Anna C. Freitag, MD.

Gender
Male 61
Female 153
Ethnicity
Non-Hispanic White 135
Black 0
Hispanic 45
Asian 0
Other 0
Native American 0
Age
From 65 to 74 86
From 75 to 84 51
85 and over 12
Less than 65 65

Conditions of Medicare patients treated by Dr. Anna C. Freitag, MD in 2018

Hypertension 75
High Cholesterol 75
Stroke 7
Ischemic Heart Disease 32
Depression 32
Chronic Kidney Disease 61
Asthma 17
Osteoperosis 16
Atrial Fibrilation 9
Heart Failure 20
Chronic Obstructive Pulmonary Disease 14
Diabetes 64
Dementia 9
Cancer 7

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Anna C. Freitag, MD treated as an endocrinologist in Prospect, CT during 2019 were lab tests and diabetes management.

Volume of procedures performed by Dr. Anna C. Freitag, MD for Medicare patients.

diabetes management 90
doctor visit 571
lab tests 90

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Anna C. Freitag, MD.

Gender
Male 70
Female 174
Ethnicity
Non-Hispanic White 159
Black 0
Hispanic 52
Asian 0
Other 0
Native American 0
Age
From 65 to 74 104
From 75 to 84 0
85 and over 0
Less than 65 68

Conditions of Medicare patients treated by Dr. Anna C. Freitag, MD in 2019

Hypertension 0
High Cholesterol 0
Stroke 7
Ischemic Heart Disease 0
Depression 39
Chronic Kidney Disease 57
Asthma 15
Osteoperosis 24
Atrial Fibrilation 10
Heart Failure 18
Chronic Obstructive Pulmonary Disease 11
Diabetes 0
Dementia 9
Cancer 10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Anna C. Freitag, MD treated as an endocrinologist in Prospect, CT during 2020 were lab tests and diabetes management.

Volume of procedures performed by Dr. Anna C. Freitag, MD for Medicare patients.

diabetes management 27
doctor visit 335
lab tests 27

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Anna C. Freitag, MD.

Gender
Male 61
Female 154
Ethnicity
Non-Hispanic White 152
Black 0
Hispanic 40
Asian 0
Other 0
Native American 0
Age
From 65 to 74 92
From 75 to 84 53
85 and over 11
Less than 65 59

Conditions of Medicare patients treated by Dr. Anna C. Freitag, MD in 2020

Hypertension 75
High Cholesterol 75
Stroke 5
Ischemic Heart Disease 40
Depression 37
Chronic Kidney Disease 58
Asthma 15
Osteoperosis 25
Atrial Fibrilation 12
Heart Failure 21
Chronic Obstructive Pulmonary Disease 13
Diabetes 62
Dementia 10
Cancer 9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Anna C. Freitag, MD treated as an endocrinologist in Prospect, CT during 2021 were lab tests and diabetes management.

Volume of procedures performed by Dr. Anna C. Freitag, MD for Medicare patients.

diabetes management 30
doctor visit 296
lab tests 30

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Anna C. Freitag, MD.

Gender
Male 52
Female 141
Ethnicity
Non-Hispanic White 137
Black 0
Hispanic 32
Asian 0
Other 0
Native American 0
Age
From 65 to 74 78
From 75 to 84 0
85 and over 0
Less than 65 55

Conditions of Medicare patients treated by Dr. Anna C. Freitag, MD in 2021

Hypertension 75
High Cholesterol 75
Stroke 0
Ischemic Heart Disease 36
Depression 32
Chronic Kidney Disease 51
Asthma 13
Osteoperosis 25
Atrial Fibrilation 7
Heart Failure 21
Chronic Obstructive Pulmonary Disease 11
Diabetes 57
Dementia 11
Cancer 10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Anna C. Freitag, MD treated as an endocrinologist in Prospect, CT during 2022 were lab tests and diabetes management.

Volume of procedures performed by Dr. Anna C. Freitag, MD for Medicare patients.

diabetes management 55
doctor visit 342
lab tests 55

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Anna C. Freitag, MD.

Gender
Male 55
Female 120
Ethnicity
Non-Hispanic White 135
Black 0
Hispanic 23
Asian 0
Other 0
Native American 0
Age
From 65 to 74 77
From 75 to 84 56
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Anna C. Freitag, MD in 2022

Hypertension 75
High Cholesterol 75
Stroke 9
Ischemic Heart Disease 30
Depression 30
Chronic Kidney Disease 33
Asthma 18
Osteoperosis 30
Atrial Fibrilation 15
Heart Failure 18
Chronic Obstructive Pulmonary Disease 15
Diabetes 57
Dementia 8
Cancer 14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Anna C. Freitag, MD for Medicare patients.

The highest averages for the top procedures that Dr. Anna C. Freitag, MD treated as an endocrinologist in Prospect, CT were lab tests, diabetes management, preventive care and vaccines.

diabetes management 45
doctor visit 337
lab tests 45
neck imaging 15
preventive care 29
ultrasound (sonogram) 15
vaccines 29

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Anna C. Freitag, MD.

Gender
Male 55
Female 121
Ethnicity
Black / African American 6
Asian / Pacific Islander 0
Non-Hispanic White 124
Native American / Alaskan Native 0
Hispanic 23
Other 0
Age
75 to 84 23
85 and over 4
Less than 65 42
65 to 74 79

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

The highest averages of the most common conditions of Medicare patients that Dr. Anna C. Freitag, MD treated were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension 60
High Cholesterol 61
Stroke 2
Ischemic Heart Disease 27
Depression 29
Chronic Kidney Disease 44
Asthma 12
Osteoporosis 17
Heart Failure 18
Chronic Obstructive Pulmonary Disease 10
Diabetes 51
Atrial Fibrillation 7
Dementia 6
Cancer 7

Education & Training

Dr. Anna C. Freitag, MD graduated from University of Connecticut School of Medicine in 1994. She completed residency at New York-Presbyterian Hospital. She is certified by the Endocrinology, Diabetes & Metabolism, Endocrinology, Diabetes & Metabolism, American Board of Internal Medicine Subspecialty and has a state license in Connecticut.

Medical School: University of Connecticut School of Medicine (1994)

Residency: New York-Presbyterian Hospital (1997)

Board Certification: Endocrinology, Diabetes & Metabolism, Endocrinology, Diabetes & Metabolism, American Board of Internal Medicine Subspecialty (1999)

Licensed In: Connecticut

Affiliations & Hospitals

Dr. Anna C. Freitag, MD is associated with these hospitals and organizations:

Trinity Health of New England
TRINITY HEALTH OF NEW ENGLAND PROVIDER NETWORK ORGANIZATION INC

Ratings & Reviews

Dr. Anna C. Freitag, MD has an exceptional overall rating with an average of 4.8 out of 5 stars based on 259 ratings. We collect ratings and reviews of Dr. Anna C. Freitag, MD from all over the web to help you find the right in Prospect, CT. 

4.8
Overall Rating
Leave a Review

General Payments

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

Payments by Company
Boehringer Ingelheim Pharmaceuticals, Inc. $24,155 JARDIANCE
$11,768 		GLYXAMBI
$5,868 		TRADJENTA
$3,994 		OFEV
$1
$2,524
SANOFI-AVENTIS U.S. LLC $21,335 TOUJEO
$16,300 		SOLIQUA
$4,684 		PRALUENT
$125 		AFREZZA
$84 		LANTUS
$61 		Other
$82
GlaxoSmithKline, LLC. $12,390 TANZEUM
$12,200 		LEVITRA
$160 		ANORO
$29
Lilly USA, LLC $10,611 JARDIANCE
$5,980 		GLYXAMBI
$2,322 		TRADJENTA
$1,237 		TRULICITY
$376 		MOUNJARO
$354 		Other
$341
Corcept Therapeutics $5,018 Korlym
$4,116
$901
Other $12,867 Ozempic
$1,697 		FARXIGA
$1,435 		V-GO
$1,125 		Tresiba
$1,107 		RYBELSUS
$460 		Other
$7,043
Types of Payments
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $48,892
Food and Beverage $19,235
Consulting Fee $10,794
Travel and Lodging $6,832
Education $562
Other $59

Biography

Dr. Anna Freitag specializes in adult endocrinology. The average patient rating for Dr. Freitag is 5.0 stars (out of 5). Dr. Freitag's areas of expertise include the following: diabetes, thyroid problems, and pituitary disorders. She obtained her medical school training at the University of Connecticut School of Medicine and performed her residency at New York-Presbyterian Hospital. Dr. Freitag is affiliated with Trinity Health of New England.

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