JOHN WARREN SULLIVAN MD NPI 1275506578

NPI Information

  • NPI: 1275506578
  • Provider Name: JOHN WARREN SULLIVAN, MD
  • Classification: Psychiatry & Neurology - 2084N0600X
  • Specialization: Clinical Neurophysiology
  • Entity Type: Individual
  • Address: 175 DWIGHT RD
    STE 301
    LONGMEADOW, MA
    ZIP 01106
  • Phone: (413) 737-4746

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NPI Details

John Warren Sullivan, MD is a clinical neurophysiology psychiatry neurology in Longmeadow, MA. The provider is clinical Neurophysiology is a subspecialty with psychiatric or neurologic expertise in the diagnosis and management of central, peripheral, and autonomic nervous system disorders using combined clinical evaluation and electrophysiologic testing such as electroencephalography (EEG), electromyography (EMG), and nerve conduction studies (NCS). John Warren Sullivan, MD NPI is 1275506578. 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:

175 DWIGHT RD
STE 301
LONGMEADOW, MA
ZIP 01106
Phone: (413) 737-4746
Fax: (413) 565-2297

The enumeration date for this NPI number is 2/8/2006 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
12084N0400XPsychiatry & NeurologyNeurology35840MASSACHUSETTSNo
22084N0600XPsychiatry & NeurologyClinical Neurophysiology35840MASSACHUSETTSYes

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

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