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Contact Information

JOHN F GREHAN, MD PHD
1301 W 18TH ST
SIOUX FALLS, SD57105-0401
 Phone: 605-312-2100
 Fax:
 Website:
 

Specialty

Taxonomy Code Specialty Code Provider Type

Thoracic Surgery (Cardiothoracic Vascular Surgery)

208G00000X 02 Physician/General Surgery
Indicates primary specialty

NPI Profile & details for JOHN F GREHAN · (Male)

NPI # 1275549784
Status Active
Credentials MD PHD
Entity Individual
Enumeration date 08/01/2006
Last updated 04/09/2022 - About 4 years ago
Sole proprietor 1 No
Identifiers
  • OH License # 35.088377
  • SD License # 13118
Hospital affiliation(s)
  • SANFORD USD MEDICAL CENTER - (Acute Care)
    1305 W 18TH ST POST OFFICE BOX 5039
    SIOUX FALLS, SD 57117
  • SANFORD USD MEDICAL CENTER - (Acute Care)
    1305 W 18TH ST POST OFFICE BOX 5039
    SIOUX FALLS, SD 57117
  • UNITED HOSPITAL - (Acute Care)
    333 NORTH SMITH AVENUE
    SAINT PAUL, MN 55102
  • UNITED HOSPITAL - (Acute Care)
    333 NORTH SMITH AVENUE
    SAINT PAUL, MN 55102
1 A sole proprietor/sole proprietorship is an individual, and as such, is eligible for a single NPI number. The sole proprietor must apply for the NPI number using his or her own Social Security Number (SSN), not an Employer Identification Number (EIN) even if he/she has an EIN.

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