MARK JOHNSON MD NPI 1780618694

NPI Information

  • NPI: 1780618694
  • Provider Name: MARK JOHNSON, MD
  • Classification: Radiology - 2085N0904X
  • Specialization: Nuclear Radiology
  • Entity Type: Individual
  • PECOS Registration: Yes
  • Address: 385 MAIN ST SOUTH
    UNION SQUARE
    SOUTHBURY, CT
    ZIP 06488
  • Phone: (203) 264-7999

Map and Directions

Get Directions

NPI Details

Mark Johnson, MD is a nuclear radiology radiology in Southbury, CT. The provider is a radiologist who is involved in the analysis and imaging of radionuclides and radiolabeled substances in vitro and in vivo for diagnosis and the administration of radionuclides and radiolabeled substances for the treatment of disease. Mark Johnson, MD NPI is 1780618694. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

The provider's business location address is:

385 MAIN ST SOUTH
UNION SQUARE
SOUTHBURY, CT
ZIP 06488
Phone: (203) 264-7999
Fax: (203) 264-7477

The NPI 1780618694 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Power Mobility Devices.

The enumeration date for this NPI number is 7/10/2006 and was last updated on 9/11/2025.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No. Taxonomy Code Taxonomy Clasification Taxonomy Specialization License Number License State Primary
12085N0904XRadiologyNuclear Radiology022134CONNECTICUTYes
22085R0202XRadiologyDiagnostic Radiology022134CONNECTICUTNo
32085U0001XRadiologyDiagnostic Ultrasound022134CONNECTICUTNo

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

NPI Synchronization or Removal

All materials and services on this site are provided on an "as is" and "as available" basis without warranty of any kind. The NPI record is maintained by the National Plan & Provider Enumeration System (NPPES) and anyone may request this information and other NPPES health care provider data from HHS under The Freedom of Information Act (FOIA), Title 5 of the United States Code, section 552. To update the NPI records please contact the NPPES.

Previous NPI
Next NPI