Dr. Rex L. Mahnensmith, M.D., Preventative Medicine Specialist
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Dr. Rex L. Mahnensmith, M.D.

Adolescent Specialist | Adolescent Medicine

4/5(36)
832 Queen Street Southington Connecticut, 06489
Rating

4/5

About

I am continuing to serve as a Practicing Internal Medicine Physician.   The central focus of my care is the individual.   I aim to listen, to understand, to sort out the active concerns of each individual and to address each.  I will actively address any expressed and discovered concern, and will make referrals as needed.   My care aims to be proactive and preventative - to provide screening and advice and counsel regarding health maintenance and wellness achievement.   My care also will address acute illnesses and established chronic ailments and health concerns.   And my care shall embrace and address complex and high risk burdens of illness.   My Calling as Physician is to provide -- and deliver -- personalized care that carefully considers the individual's burden of illnesses, the health changes that she or he is experiencing, and then aiming to carefully provide effective remediation.   I am to actively consider special concerns and fears and needs as they unfold.   It is with humility that I serve in this chapter of my Vocation -- truly taking time to listen, to hear, to respond, to show empathy, and to make deeply considered and personalized clinical decisions. I pledge to serve carefully and tenderly, expressing value, concerns, hopes, counsel and education to individuals as I deliver particulars of clinical care.

I am blessed with good health myself. I have served for over 30 years as Teaching Physician in three University Medical Centers. My teaching harmonized well with my clinical service and patient care during these years. I served both in outpatient clinics and on hospital units, supervising students and residents in concert with direct care responsibilities. These years were fulfilling. I aimed to deliver best care to patients - and I aimed to model best care as well. I regularly talked to students and residents about the special "Calling" of a physician - the privilege, the responsibilities, the duties, and the opportunities to make a difference to individuals and families.  I received several teaching awards over these years, and I received several "Model Physician Awards" as well.  These years were filled with gratification and positive relationships. I thoroughly enjoyed clinical teaching and I poured my heart and mind and soul into each moment.  I served as Associate and then Full Professor of Medicine at Yale Medical School from 1992 to 2014.  During these years, I also served as "Clinical Advisor" to the Chairman of Medicine and I serve as "Advisor" to National Medicare Dialysis Oversight Committee.  I also served as Medical Director of Dialysis at Yale from 1994 to 2014 and as Regional Medical Director of Dialysis for two National Dialysis Corporations from 2001 through 2006.  In these Medical Director of Dialysis Roles, I was responsible for Quality Assurance and Dialysis Safety in local dialysis clinics in New Haven, CT and I also served as a Regional Educator regarding Quality Assurance for hundreds of dialysis clinic leaders across 30 states in Eastern U.S.  In this capacity, I lead the development of several Clinical Pathways which were implemented within the operations of these dialysis clinics and which resulted in high quality care and excellent clinical outcomes.  

In 2014, I retired from Yale University Professorship as Tenured Professor Emeritus - - and I transitioned to serving individuals and families in Skilled Nursing Facilities, providing General Medical care to many persons with various chronic illnesses. In this context, I had the capacity to really take time with individuals --- to sit and listen, to hear and to understand their concerns, and to deliver personalized care like never before.  In this, I realized my Deepest Calling as a Physician -- primary, holistic care of individuals in their own special contexts, delving deeply into their unique social contexts, knowing deeply their burdens of chronic illnesses, responding promptly to any acute health change that they were experiencing, and addressing their various problems and fears.  I took this step in my career journey so that my wife and I could live in a small town in northern Connecticut where our daughter and our grandchildren lived, so that we could help with their care and familly needs.  This step was very positive. 

In 2015, I transitioned to a Community Health Clinic setting, where I served as Primary Care Physician addressing multiple individuals' needs and concerns. It is with humility that I served in this chapter of my "Vocation" -- truly taking time to listen, to hear, to speak, to show empathy, and to make deeply considered, and personalized clinical decisions - and aiming to catalyze positive change in each person's health and sense of well-being. I served as Chief Medical Officer for the CHC into 2017, then transitioned to a Private Practice Group - DOCS of Connecticut.

Through all, I have truly hoped to be a light that shines, just enough to give warmth and illumination and to be a kindling source for others' whose light is dimming or flickering. I have hoped and continue to hope to confer a true sense of genuine caring to each person that I serve - - caring for the person but also caring about the person -- recognizing and serving within their specific social context.

Serving in this way, serving carefully as a caring physician, has been and is my Calling. I intend to serve thusly as long as God wills and by His Strength and Wisdom.

Professional Honors and Recognition:

Apr 1972 Phi Beta Kappa, Sigma Xi, Omicron Delta Kappa, Denison University
Sep 1972 Teaching Fellow, Denison University
Jun 1976 Lange Award: "Clinical Excellence". Yale

May 1977 Alpha Omega Alpha, Yale
Jun 1977  Berniker Award: "Most exemplary of The Oath of Hippocrates and Maimonides Prayer" Yale
Jun 1979  Kushlan Award: "For clinical excellence and contributing the most to patient care" Yale
Jul  1983 National Kidney Foundation, Research Fellowship Award, Yale 
Jun 1985  Duke University "Special Recognition for Teaching"
Jun 1988  "Teacher of the Year" Brown University
Jun 1988  "Model Physician Award" Brown University
Jun 1989  "Senior Class Outstanding Teacher Award" Brown University 
Jun 1989 "Teacher of the Year", Miriam Hospital, Brown University
Jun 1990 "Model Physician Award", Miriam Hospital, Brown University
Jun 1990 "1990 Senior Citation: Outstanding Physician and Teacher" Brown University
Jun 1991 "Senior Class Outstanding Teacher Award", Brown University
Jun 1991 "Model Physician Award", Miriam Hospital, Brown University 
Jun 1992 "Teacher of the Year", Miriam Hospital, Brown University
Jun 1993 "Teacher of the Year", Yale Internal Medicine
Jun 1993 "Howard M. Spiro Teaching Award", Yale University Affiliated Hospitals
Sep 1997 "Didactic Professor Award", Yale University Physician Associate Program
Sep 2009 "Didactic Professor Award", Yale University Physician Associate Program
Jun 2011 "Emergency Medicine Resident Appreciation Award", Yale Emergency Medicine
Oct 2012  "DaVita Shining Star Award" -- for service excellence in their dialysis clinics
Sep 2013 "Branford-DaVita Service Appreciation Award"

 

Education and Training

MD at Yale School of Medicine

Yale New Haven Hospital Internal Medicine Residency 1980

Yale University Fellowship Nephrology Metabolism 1984

Board Certification

American Board of Internal Medicine

Nephrology (Internal Medicine)

Provider Details

Male English
Dr. Rex L. Mahnensmith, M.D.
Dr. Rex L. Mahnensmith, M.D.'s Expert Contributions
  • Autoimmune diseases and Insomnia?

    Hello, Most likely, the fatigue relates to inflammation activity in your body from RA. And, your energy cycles likely relate to medications you are taking. Rex READ MORE

  • I am afraid I might have penile cancer?

    Hi, This sore is most likely urethritis, not a cancer. It is essential for you to have a urine test and a blood test for infection analysis. These tests are ordinary and can be accomplished at an Urgent Care clinic. Antibiotic is curative. Cleansing is essential too. READ MORE

  • Do you think smart watches with heart rate are accurate?

    As you have noted, the pulse watch can pick up other movements and vibration that are not pulsation. READ MORE

  • Iron supplement constipation?

    Iron tablets are likely to alter bowel movements, yes. It is well known. Yes. To reduce constipation with iron, take each tablet with additional vitamin C. A 500 mg tablet with the iron tablet will enhance the intestinal absorption of iron. Also, drink a minimum of 6-8 ounces of fruit juice with the iron tablet and vitamin C. This enhances absorption and disperses the iron compound. And repeat the glass of fruit juice twice more. And eat more food fiber such as an apple, a pear, a peach, or high-fiber oatmeal each day is important. And yes, a daily regular capsule of Senna plus Colace is important and essential. READ MORE

  • 60 year old woman with chronic diarrhea no other symptoms?

    So sorry for your persistent diarrhea. The normal colonoscopy is very valuable information. Other essential testing: 1). Food allergies blood testing. Is a routine lab draw. Requires an order. 2). Celiac disease panel. Is also a routine lab draw. 3). Eliminate dairy foods for four weeks as a trial. 4). Eliminate gluten foods also for four weeks. 5). Stool test for Clostridium diffocele. 6). Stool test for giardiasis. 7). Reduce animal fat intake. 8). Take probiotic daily. 9). Minimal caffeine. 10). More fiber in form of leafy greens, apples, bananas. If you have a chronic condition such as diabetes, then review with your diabetes specialist. READ MORE

  • Is it normal to feel tired after a CT scan?

    Not usual. Not “normal.“ The CT scan is a computerized X-ray. The CT scan may be enhanced by the administration of intravenous radiocontrast dye. The dye circulates through blood vessels and then is excreted through the kidneys. This dye has a diuretic effect and can lead to dehydration. So, if one received the radio contrast dye then dehydration and fatigue may follow. READ MORE

  • Is abdominal pain after COVID infection normal?

    Coronavirus infection is largely respiratory. It can reside in nostrils and pharynx or it can cross through respiratory tissues. Our immune system will respond with inflammatory molecules to eradicate infection. Inflammatory molecules can incite muscle aches and gastrointestinal reactions that may include cramping or vomiting. Heavy mucus that is swallowed will also incite similar gastrointestinal symptoms. Long-lasting pain should be evaluated. READ MORE

  • Should those test results be considered valid?

    No. Tests were done in context of Ativan adverse reaction. READ MORE

  • Pain in lower left side of stomach?

    Your ailment requires exam and testing: physical palpitation, ultrasound and CT scanning (or MRI), blood and urinalysis. The region of your discomfort includes upper colon, spleen, outside left wall of the stomach. Persistent ache and pain can indicate inflammatory reaction to infection or diverticulitis or polyp or neoplasm. READ MORE

  • Can you get lung inflammation from covid?

    Yes!! And lung inflammation is the mayor concern and the major illness that arises. Coronavirus is unique in its way of sticking to respiratory membranes. The virus sticks and holds and enters. Our body’s response to this is a surge of white blood cells and lymph cells to consume viruses, and plasma follows. Lungs become wet and heavy with these inflammatory materials, and this impairs respirations. READ MORE

  • Should I go to urgent care for high blood pressure?

    Hi, Yes, you may. You will receive an exam. You can receive a lab test. You can receive initial medication. You can receive follow up. It all can benefit you. You can receive a referral then to a primary care physician. READ MORE

  • What time of day do most strokes occur?

    Hello, Published data from many hospital centers around the world document that over 70% of stroke events occur during day hours, specifically between 6 AM and 6 PM. And, when analyzed in greater detail, the peak incidence of acute ischemic stroke spans mid-day hours, specifically from 12 PM to 6 PM. These hours correlate with biological rhythms of rising blood pressures through morning and mid-day hours and rising stress hormones, which contribute to a vascular change by constriction of arteries and arterioles. Stroke prevention includes healthy diet, healthy exercise patterns, healthy thinking, and social interactions. These moderate stress hormone levels and blood pressure variations. Rex READ MORE

  • Can a kidney infection return after antibiotics?

    Yes. A kidney infection can linger in its middle sections. Antibiotics for lower urinary tract infection will eradicate the infection with 5-7 days. When upper tract infection occurs, then the bacteria have ascended into the middle sections of one’s kidney. Antibiotic courses must extend beyond 10 days for these kidney infections. And some infections become encapsulated over time, which is more complicated and clearance with ongoing antibiotic therapy will require at least 14 days and on occasion longer. The culture and sensitivity stat are very important. The antibiotic selection must be effective. And finally one’s own kidney ureter bladder synchronization matters. Completely emptying of the bladder is essential with each void. Knowing if one has reflux from bladder up into ureter matters. Knowing if partial blockage exists. Or stones or gravel or bladder polyps or any renal cyst matters too. And high urine flow matters, drinking 3-4 quarts per day so voiding of 3-4 quarts per day will happen. If antibiotic course was 5 days, then it was too short. For upper tract kidney infections, the antibiotic should be 10-14 days. READ MORE

  • Does lemon water help with bloating?

    Lemon water is a nourishing and beneficial liquid. One must be careful not to drink large gulps at once, but to sip gently over time, such as 4-6 ounces over 30-45 minutes. Lemon water will ease stomach upset because it neutralizes stomach acid. Lemon water is most beneficial when loose stool is occurring, as the lemon replaces bicarbonate lost in diarrhea stool. It is essential with bloating to consume small portions at a time of any food and drink. Rex READ MORE

  • Is anemia a dangerous blood disorder?

    Anemia can be dangerous. The word indicates lower than normal hemoglobin levels in one’s whole blood stream. One’s health is affected at all degrees of anemia, though the actual impact varies. So, the actual cause of anemia matters. The degree of anemia matters. Your age matters. The existence of other illness matters. Anemia compromises oxygen delivery to vital tissues and organs. If one has heart disease, then anemia threatens the heart. Causation must be discovered and remedied. Organs must be tested and protected. READ MORE

  • Where is IBS pain located?

    Hi, IBS refers to Irritable Bowel Syndrome. IBS features bowel wall muscle spasms and cramps. The usual location of this discomfort is peri umbilical. Around the navel. Middle of the abdomen. This is usual. Pain is generalized in this mid-abdominal space. READ MORE

  • Can you bleed every month while pregnant?

    Hello, No. The uterus should not shed its endometrium during pregnancy. If happening, then see OBGYN right away. Rex READ MORE

  • Does gastritis get worse after eating?

    Most commonly yes, it does. Because food stimulates stomach acid secretion and this irritates and burns more. And stomach stretching is painful too. Blocking acid secretion is essential for healing. And gentle small portion eating is also essential. READ MORE

  • What medication helps a teenager who is sleepwalking?

    Hello, This sleep concern may happen because of iron deficiency. Iron deficiency is a common cause of sleep restlessness, sleep movements, and sleep walking. Since she is 13 years old, then her total body iron may be reduced enough to be the cause. First step - have blood testing done for serum iron and serum ferritin and hemoglobin levels. Any reduction in serum iron and serum ferritin calls for oral replacement therapy, and this may resolve her sleep disturbances. The pediatrician or family medicine practitioner can provide the order and dialogue and guidance. Oral iron tablets can be taken easily though some of the tablets do upset the stomach and cause constipation. So, management requires careful selection -- Slow FE is easy to take, as are child liquid formulations. So start with this. Rex READ MORE

  • What causes muscle spasms in the heart?

    Heart muscle aching and cramping occurs when oxygen supply to muscle fibers is not sufficient for the work the muscle is doing. Heart muscle contracts every second. Oxygen supply must be continuous. READ MORE

Areas of expertise and specialization

Primary CareGeneral Internal MedicineKidney DiseasesHypertensionPreventative MedicineNutrition and WellnessElder Care and Rest Home CareDiabetes MellitusPre-Diabetic StateOverweight and ObesityMild and Moderate Asthma

Faculty Titles & Positions

  • Professor, Duke University, Brown University, Yale University -

Awards

  • Teacher of the Year.Brown Univ.1988, '89, '90, '91, '92   
  • Outstanding Teacher. Yale Univ. 1993, '97, 2009, 2011   
  • Model Physician. Miriam Hosp. 1988, '90, '91   
  • Dialysis Medical Director Excellence. 2011, 2013   
  • Outstanding Teacher. Duke U. 1985   
  • Leading Physicians of the World 2016 International Association of Health Care Practitioners 
  • Berniker Award - Most Exemplary of Prayer of Maimonides 1977 Yale U 
  • Kushlan Award - Best Bedside Manner and Care 1978 Yale NH Hospital 
  • Chief Resident 1980 Yale U Dept of Medicine 
  • Who's Who Honorary 2017 Continental Who's Who 
  • Marquis Who's Who 2022 Marquis Who's Who 
  • Patient Preferred Award 2021 Patient Preferred Physicians 

Professional Memberships

  • American Medical Association  
  • American Society of Nephrology  

Charities and Philanthropic Endeavors

  • Compassion International Aid Society
  • Send International Missions
  • CRU Campus Missions
  • Ligonier Ministries
  • HAVEN
  • ASPCA
  • Christ Community Church in Collinsville
  • Samaritans' Purse
  • World Vision

Internships

  • Yale New Haven Hospital Internal Medicine

Fellowships

  • Yale University Nephology

Professional Society Memberships

  • AMA and ASN

Favorite professional publications

  • JAMA

Areas of research

Nutritional Care of the Person with Chronic Kidney Disease

Optimizing Diabetic Control

Nutritional Care of Polycystic Kidney Condition.

Pharmacologic Care of Polycystic Kidney Condition.

Impact of Clinical Pathways on Promoting Quality Improvement in Clinic Settings

Dr. Rex L. Mahnensmith, M.D.'s Practice location

DOCS Medical Group

832 Queen Street -
Southington, Connecticut 06489
Get Direction
New patients: 860-863-5288, 860-863-5288
https://docsmedicalgroup.com/docsurgentcare/contact/

DOCS Medical Group

279 Chase Avenue -
Waterbury, Connecticut 06704
Get Direction
New patients: 475-328-0326

Dr. Rex L. Mahnensmith, M.D.'s reviews

(36)
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Patient Experience with Dr. Mahnensmith


4.0

Based on 36 reviews

Dr. Rex L. Mahnensmith, M.D. has a rating of 4 out of 5 stars based on the reviews from 36 patients. FindaTopDoc has aggregated the experiences from real patients to help give you more insights and information on how to choose the best Adolescent Specialist in your area. These reviews do not reflect a providers level of clinical care, but are a compilation of quality indicators such as bedside manner, wait time, staff friendliness, ease of appointment, and knowledge of conditions and treatments.

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