Connecticut NPI Registry — Provider Lookup

Look up NPI numbers for healthcare providers in Connecticut. Our latest NPPES snapshot includes 104,099 active providers and organizations with a practice location in Connecticut, searchable by name, specialty, and city.

Top specialties in Connecticut

Social Worker in CT (11,186)
Counselor in CT (8,500)
Nurse Practitioner in CT (7,106)
Internal Medicine in CT (5,984)
Student in an Organized Health Care Education/Training Program in CT (5,440)
Dentist in CT (4,776)
Physical Therapist in CT (4,177)
Physician Assistant in CT (3,962)
Pharmacist in CT (3,637)
Marriage & Family Therapist in CT (2,489)
Psychologist in CT (2,398)
Clinic/Center in CT (2,382)
Psychiatry & Neurology in CT (2,210)
Occupational Therapist in CT (2,094)
Behavior Technician in CT (1,809)
Pediatrics in CT (1,763)
Speech-Language Pathologist in CT (1,752)
Chiropractor in CT (1,554)
Behavior Analyst in CT (1,505)
Family Medicine in CT (1,343)
Registered Nurse in CT (1,217)
Pharmacy in CT (1,116)
Optometrist in CT (1,106)
Obstetrics & Gynecology in CT (1,081)
Dietitian, Registered in CT (971)
Anesthesiology in CT (954)
Emergency Medicine in CT (940)
Radiology in CT (931)
Nurse Anesthetist, Certified Registered in CT (871)
Community/Behavioral Health in CT (773)

Browse by city

New Haven, CT (10,553)
Hartford, CT (7,041)
Waterbury, CT (3,756)
Stamford, CT (3,602)
Bridgeport, CT (3,568)
Farmington, CT (3,277)
Danbury, CT (2,911)
Manchester, CT (2,545)
Norwalk, CT (2,486)
West Hartford, CT (2,215)
New Britain, CT (2,042)
Middletown, CT (1,918)
Fairfield, CT (1,869)
Hamden, CT (1,851)
Norwich, CT (1,669)
West Haven, CT (1,538)
Greenwich, CT (1,501)
Milford, CT (1,444)
New London, CT (1,412)
Glastonbury, CT (1,307)
Enfield, CT (1,200)
East Hartford, CT (1,187)
Westport, CT (1,149)
Meriden, CT (1,126)
Wallingford, CT (1,113)
Bristol, CT (1,105)
Windsor, CT (1,082)
Shelton, CT (1,081)
Torrington, CT (1,049)
Trumbull, CT (1,007)
Cheshire, CT (947)
Stratford, CT (931)
Newington, CT (908)
Groton, CT (902)
Branford, CT (864)
Plainville, CT (859)
Avon, CT (853)
Bloomfield, CT (785)
Cromwell, CT (737)
North Haven, CT (721)

Frequently asked questions

How do I look up an NPI number in Connecticut?

Use the NPI search and select CT, or browse the specialty and city directories on this page. Every provider profile shows the NPI, taxonomy, practice address, and status.

How many healthcare providers are registered in Connecticut?

Our latest NPPES snapshot lists 104,099 active providers and organizations with a practice location in Connecticut.

Is this the official Connecticut NPI registry?

No — NPI numbers are issued federally by CMS, not by states. This is a private directory built on the public CMS NPPES data file; the official registry is npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-09.