Basic Information
Provider Information
NPI: 1134211014
EntityType: 1
ReplacementNPI:  
OrganizationName:  
LastName: GUERNSEY
FirstName: LOUIS
MiddleName: H.
NamePrefix: DR.
NameSuffix:  
Credential: MD
OtherOrganizationName:  
OtherOrganizationType:  
OtherLastName:  
OtherFirstName:  
OtherMiddleName:  
OtherNamePrefix:  
OtherNameSuffix:  
OtherCredential:  
OtherLastNameType:  
Mailing Information
Address1: PO BOX 191
Address2: PROVIDER ENROLLMENT DEPT
City: ROCKLAND
State: DE
PostalCode: 197320191
CountryCode: US
TelephoneNumber: 3026516212
FaxNumber: 3026514945
Practice Location
Address1: A.I. DUPONT HOSPITAL FOR CHILDREN
Address2: 1600 ROCKLAND ROAD
City: WILMINGTON
State: DE
PostalCode: 198033607
CountryCode: US
TelephoneNumber: 3026514000
FaxNumber: 3026514945
Other Information
ProviderEnumerationDate: 09/29/2006
LastUpdateDate: 02/10/2016
NPIDeactivationReasonCode:  
NPIDeactivationDate:  
NPIReactivationDate:  
ProviderGenderCode: M
AuthorizedOfficialLastName:  
AuthorizedOfficialFirstName:  
AuthorizedOfficialMiddleName:  
AuthorizedOfficialTitleorPosition:  
AuthorizedOfficialTelephone:  
IsSoleProprietor: N
IsOrganizationSubpart:  
ParentOrganizationLBN:  
AuthorizedOfficialNamePrefix:  
AuthorizedOfficialNameSuffix:  
AuthorizedOfficialCredential:  
NPICertificationDate:  

Taxonomy Information
TaxonomyLicenseStateSwitchTaxonomyGroupTaxonomyTypeTaxonomyClassSubSpecialty
207RP1001XC10004225DEY Allopathic & Osteopathic PhysiciansInternal MedicinePulmonary Disease
207RP1001XMA06308400NJN Allopathic & Osteopathic PhysiciansInternal MedicinePulmonary Disease
207RP1001XMD038844EPAN Allopathic & Osteopathic PhysiciansInternal MedicinePulmonary Disease

ID Information
IDTypeStateIssuerDescription
166658605NY MEDICAID
141024605PA MEDICAID
747320605NJ MEDICAID
761242205NC MEDICAID
442302005DC MEDICAID
443312205MD MEDICAID


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