Diefendorf, Dirk Ross

Diefendorf, Dirk Ross is an sole proprietor health care provider with primary practice located at 101 S Ellsworth Ave Suite 607, San Mateo CA 94401-3956. He recently has only one registered license in Allopathic & Osteopathic Physicians / Neuromusculoskeletal Medicine, Sports Medicine, which is considered as his primary health care specialty. Diefendorf, Dirk Ross can be contacted via phone (650) 347-0157.

Contact Information

Primary practice address
101 S Ellsworth Ave Suite 607 San Mateo CA 94401-3956
Fax: (650) 347-0566
Website:

Health care specialties

SpecialtyCodeLicense #State
Allopathic & Osteopathic Physicians / Neuromusculoskeletal Medicine, Sports Medicine 204C00000X G53558 California

Profile Details

NPI number 1467559443
LBN Legal business name Diefendorf, Dirk Ross
Credentials Doctor of Medicine (MD)
Entity Individual
Sole proprietor 1 Yes
Enumeration date Sep 20th, 2006
Last updated Aug 30th, 2010 - about 14 years ago

1 A sole proprietor/sole proprietorship is an individual, and in that capacity, is qualified for a solitary NPI number. The sole proprietor have to apply for the NPI number using his or her own particular Social Security Number (SSN), instead of Employer Identification Number (EIN) regardless of whether he/she has an EIN.

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