Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Dirk C. Johnson, MD
Surgery Physician in New Haven, CT · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1770748063
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Registry record
Entity type Individual (Type 1)
Name Dr. Dirk C. Johnson
Credential MD
Sex Male
Practice address 330 Cedar St, Bb 310, New Haven, CT, 06510
Phone (203) 785-2572
Fax (203) 785-3950
Enumeration date Jul 25, 2008
Last updated in NPPES Mar 8, 2012
Taxonomy & licenses
2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License 044811 (CT) Secondary
2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians · License 044811 (CT) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Dirk Johnson practice?
The practice location on file with NPPES is in New Haven, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Dirk Johnson?
The National Provider Identifier (NPI) for Dirk Johnson is 1770748063, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Heather Zell Pediatric Nurse Practitioner · New Haven, CT NPI 1245344829 Hiroshi Sogawa Surgery Physician · New Haven, CT NPI 1679676621 Erica Spatz Cardiovascular Disease Physician · New Haven, CT NPI 1720293186 Daniel Solomon Pediatric Surgery Physician · New Haven, CT NPI 1295910008 Pramod Bonde Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · New Haven, CT NPI 1013192061 Elif Dokmeci Pediatric Allergy/Immunology Physician · New Haven, CT NPI 1790950012 Ethan Marin Nephrology Physician · New Haven, CT NPI 1740455864 Michael Alperovich Plastic Surgery Physician · New Haven, CT NPI 1972762581
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-08.