Basic Information
Provider Information
NPI: 1003816679
EntityType: 1
ReplacementNPI:  
OrganizationName:  
LastName: MCELFRESH
FirstName: DUNCAN
MiddleName:  
NamePrefix:  
NameSuffix:  
Credential: CRNA
OtherOrganizationName:  
OtherOrganizationType:  
OtherLastName:  
OtherFirstName:  
OtherMiddleName:  
OtherNamePrefix:  
OtherNameSuffix:  
OtherCredential:  
OtherLastNameType:  
Mailing Information
Address1: 66 POWERHOUSE RD
Address2: 3RD FLOOR
City: ROSLYN HEIGHTS
State: NY
PostalCode: 115771324
CountryCode: US
TelephoneNumber: 5166266366
FaxNumber:  
Practice Location
Address1: 2401 W BELVEDERE AVE
Address2: ANESTHESIA DEPARTMENT
City: BALTIMORE
State: MD
PostalCode: 212155216
CountryCode: US
TelephoneNumber: 4106015209
FaxNumber: 4106019744
Other Information
ProviderEnumerationDate: 07/26/2005
LastUpdateDate: 07/02/2013
NPIDeactivationReasonCode:  
NPIDeactivationDate:  
NPIReactivationDate:  
ProviderGenderCode: M
AuthorizedOfficialLastName:  
AuthorizedOfficialFirstName:  
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AuthorizedOfficialTitleorPosition:  
AuthorizedOfficialTelephone:  
IsSoleProprietor: Y
IsOrganizationSubpart:  
ParentOrganizationLBN:  
AuthorizedOfficialNamePrefix:  
AuthorizedOfficialNameSuffix:  
AuthorizedOfficialCredential:  
NPICertificationDate:  

Taxonomy Information
TaxonomyLicenseStateSwitchTaxonomyGroupTaxonomyTypeTaxonomyClassSubSpecialty
367500000XR083667MDY Physician Assistants & Advanced Practice Nursing ProvidersNurse Anesthetist, Certified Registered 

ID Information
IDTypeStateIssuerDescription
55507180005MD MEDICAID


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