Basic Information
Provider Information
NPI: 1780662528
EntityType: 2
ReplacementNPI:  
OrganizationName: JOHN D MAST MD INC
LastName:  
FirstName:  
MiddleName:  
NamePrefix:  
NameSuffix:  
Credential:  
OtherOrganizationName:  
OtherOrganizationType:  
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Mailing Information
Address1: PO BOX 986
Address2:  
City: WOODBRIDGE
State: CA
PostalCode: 952580986
CountryCode: US
TelephoneNumber: 2093399036
FaxNumber: 2093391901
Practice Location
Address1: 473 W EATON AVE
Address2:  
City: TRACY
State: CA
PostalCode: 95376
CountryCode: US
TelephoneNumber: 2098333320
FaxNumber: 2098355929
Other Information
ProviderEnumerationDate: 01/03/2006
LastUpdateDate: 01/06/2010
NPIDeactivationReasonCode:  
NPIDeactivationDate:  
NPIReactivationDate:  
ProviderGenderCode:  
AuthorizedOfficialLastName: MAST
AuthorizedOfficialFirstName: JOHN
AuthorizedOfficialMiddleName: D
AuthorizedOfficialTitleorPosition: MD
AuthorizedOfficialTelephone: 2098333320
IsSoleProprietor:  
IsOrganizationSubpart: N
ParentOrganizationLBN:  
AuthorizedOfficialNamePrefix: MR.
AuthorizedOfficialNameSuffix:  
AuthorizedOfficialCredential:  
NPICertificationDate:  

Taxonomy Information
TaxonomyLicenseStateSwitchTaxonomyGroupTaxonomyTypeTaxonomyClassSubSpecialty
208600000XG34146CAY193400000X SINGLE SPECIALTY GROUPAllopathic & Osteopathic PhysiciansSurgery 

ID Information
IDTypeStateIssuerDescription
00G34146105CA MEDICAID


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