Jonathan Bayuk is an Allergy and Immunologist in Florence, Massachusetts. Dr. Bayuk is rated as a Distinguished provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Allergic Rhinitis, Sinusitis, Grass Allergy, and Hives. Dr. Bayuk is currently accepting new patients.

Erin Kolb is a Nurse Practitioner in Florence, Massachusetts. Ms. Kolb is rated as a Distinguished provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top area of expertise is Mast Cell Activation Syndrome (MCAS). Ms. Kolb is currently accepting new patients.

Vanessa Vanstee is an Allergy and Immunologist and a Hospital Medicine provider in Florence, Massachusetts. Dr. Vanstee is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Allergic Rhinitis, X-Linked Agammaglobulinemia, Sinusitis, and Grass Allergy. Dr. Vanstee is currently accepting new patients.

Darren Lynch, MD received his medical degree from Georgetown University, followed by a 3-year family practice residency at York Hospital. After several years in private practice and becoming increasingly frustrated by the limitations of conventional medicine, he entered an Integrative Medicine Fellowship at the Continuum Center for Health and Healing in New York City, where he received training in a wide range of complementary and alternative healing modalities. His practice, Northampton Integrative Medicine, is a lifestyle membership practice offering patient-centered medical and allergy treatment. We have an interdisciplinary team of specialists who offer our patient members innovative medical services and therapies that may not be available elsewhere including in depth testing, IV therapy, injection therapy, regenerative medicine, wellness, medspa and health coaching services. Our aim is to provide our patient members with a treatment program that will address the root causes of their illness or allergies, leading to lasting relief of symptoms. We use innovative and expanded diagnostic approaches to identify what is going on “beneath the surface". Dr. Lynch is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Lyme Disease, Irritable Bowel Syndrome (IBS), Allergic Rhinitis, and Empyema.

Denise Kearney is an Allergy and Immunologist in Northampton, Massachusetts. Dr. Kearney is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Omenn Syndrome, Allergic Rhinitis, MAGIC Syndrome, and IgG4-Related Disease. Dr. Kearney is currently accepting new patients.

Janice Pegels is a primary care provider, practicing in Family Medicine in Northampton, Massachusetts. Dr. Pegels is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Guanidinoacetate Methyltransferase Deficiency, Hyperphenylalaninemia Due to Dehydratase Deficiency, Complement Component 2 Deficiency, and Hereditary Angioedema.

Kristin Rivera is a primary care provider, practicing in Family Medicine in Florence, Massachusetts. Dr. Rivera is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Mast Cell Activation Syndrome (MCAS), Neuronal Intranuclear Inclusion Disease (NIID), Small Lymphocytic Lymphoma (SLL), and Familial Hypertension. Dr. Rivera is currently accepting new patients.

Cathleen O'connell is a Nurse Practitioner in Florence, Massachusetts. Ms. O'connell is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top area of expertise is Mast Cell Activation Syndrome (MCAS).

Jennifer Nesteby is a Nurse Practitioner in Florence, Massachusetts. Ms. Nesteby is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Mast Cell Activation Syndrome (MCAS), Seasonal Affective Disorder (SAD), and Vitamin D Deficiency. Ms. Nesteby is currently accepting new patients.

Tuyyab Hassan is a Hepatologist in Holyoke, Massachusetts. Dr. Hassan is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Nonalcoholic Steatohepatitis (NASH), Hepatitis C, Hepatitis, Colonoscopy, and Endoscopy.

Katherine Atkinson is an Addiction Medicine provider in Amherst, Massachusetts. Dr. Atkinson is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Opioid Use Disorder, Gingival Fibromatosis with Hypertrichosis, Vitamin D Deficiency, and Menopause. Dr. Atkinson is currently accepting new patients.

Michele Spirko is a primary care provider, practicing in Family Medicine in Amherst, Massachusetts. Dr. Spirko is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Hypermethioninemia, Sulfite Oxidase Deficiency, COVID-19, Multisystem Inflammatory Syndrome in Children (MIS-C), and Intrauterine Device Insertion.

Mohammad Mostafavi is an Urologist in Springfield, Massachusetts. Dr. Mostafavi is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Kidney Stones, Ochoa Syndrome, Perirenal Abscess, Ureteroscopy, and Prostatectomy. Dr. Mostafavi is currently accepting new patients.

Kerri St. George is a Physician Assistant in Springfield, Massachusetts. Ms. St. George is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Chinese Restaurant Syndrome, Chronic Spontaneous Urticaria (CSU), Mast Cell Activation Syndrome (MCAS), and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP). Ms. St. George is currently accepting new patients.

Richard Steingart is a Hematologist in Springfield, Massachusetts. Dr. Steingart is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Follicular Lymphoma, Small Lymphocytic Lymphoma (SLL), Hairy Cell Leukemia (HCL), Reticuloendotheliosis, and Bone Marrow Aspiration.