Allergy & Immunology Specialists in Norwalk, CT
Browse 7 Allergy & Immunology providers listed in NPPES with a practice address in Norwalk, Connecticut.
How Norwalk compares with the U.S.
7 active clinicians in Allergy & Immunology list a practice address in Norwalk, CT in the NPI registry.
With fewer than 10 clinicians, rates per 100,000 residents are not reliable enough to compare.
Too few clinicians in Allergy & Immunology in Norwalk are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.
These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.
Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com · Methodology
Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026.
Dr. Kaoru Harada , MD
Allergy & Immunology
Dr. Philip Hemmers , DO
Allergy & Immunology
Dr. Michael Lewin , MD
Allergy & Immunology
Dr. Mark D Litchman , MD
Allergy & Immunology
Dr. Aymeric E. Louit , MD
Allergy & Immunology
Dr. Agnieszka Matczuk , MD
Allergy & Immunology
Dr. Joseph F Sproviero , MD PHD
Allergy & Immunology
Frequently Asked Questions about Allergy & Immunology in Norwalk
Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Connecticut licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.
This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.
Other Specialties in Norwalk
- Social Worker - Clinical 184
- Student in an Organized Health Care Education/Training Program 102
- Pharmacist 87
- Physical Therapist 85
- Physician Assistant - Surgical 65
- Nurse Practitioner - Family 54
- Physician Assistant 54
- Dentist - General Practice 46
- Chiropractor 40
- Dentist 30
- Physician Assistant - Medical 21
- Nurse Anesthetist, Certified Registered 17