Basic Information
Provider Information
NPI: 1912927021
EntityType: 1
ReplacementNPI:  
OrganizationName:  
LastName: BUYYOUNOUSKI
FirstName: MARK
MiddleName: K
NamePrefix:  
NameSuffix:  
Credential: M.D.
OtherOrganizationName:  
OtherOrganizationType:  
OtherLastName:  
OtherFirstName:  
OtherMiddleName:  
OtherNamePrefix:  
OtherNameSuffix:  
OtherCredential:  
OtherLastNameType:  
Mailing Information
Address1: 1804 EMBARCADERO RD
Address2: SUITE 100
City: PALO ALTO
State: CA
PostalCode: 943033341
CountryCode: US
TelephoneNumber: 6507234000
FaxNumber:  
Practice Location
Address1: 300 PASTEUR DR
Address2:  
City: STANFORD
State: CA
PostalCode: 943052200
CountryCode: US
TelephoneNumber: 6507234000
FaxNumber:  
Other Information
ProviderEnumerationDate: 07/20/2006
LastUpdateDate: 04/01/2016
NPIDeactivationReasonCode:  
NPIDeactivationDate:  
NPIReactivationDate:  
ProviderGenderCode: M
AuthorizedOfficialLastName:  
AuthorizedOfficialFirstName:  
AuthorizedOfficialMiddleName:  
AuthorizedOfficialTitleorPosition:  
AuthorizedOfficialTelephone:  
IsSoleProprietor: N
IsOrganizationSubpart:  
ParentOrganizationLBN:  
AuthorizedOfficialNamePrefix:  
AuthorizedOfficialNameSuffix:  
AuthorizedOfficialCredential:  
NPICertificationDate:  

Taxonomy Information
TaxonomyLicenseStateSwitchTaxonomyGroupTaxonomyTypeTaxonomyClassSubSpecialty
174400000XMD4211507PAN Other Service ProvidersSpecialist 
2085R0001XMD421507PAN Allopathic & Osteopathic PhysiciansRadiologyRadiation Oncology
2085R0001XC55796CAY Allopathic & Osteopathic PhysiciansRadiologyRadiation Oncology

ID Information
IDTypeStateIssuerDescription
101329325000105PA MEDICAID


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