JOHN F. GREHAN MD PHD – NPI #1275549784
Thoracic Surgery (Cardiothoracic Vascular Surgery)

A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.

Health Care Provider Taxonomy Code for Thoracic Surgery (Cardiothoracic Vascular Surgery)

JOHN GREHAN is a thoracic surgeon located in SIOUX FALLS, SD. NPPES has assigned the NPI number 1275549784 to JOHN GREHAN on August 01, 2006. It is a Type-1 NPI, indicating this NPI number is associated with an individual. The primary taxonomy selected by this provider is 208G00000X from the Health Care Provider Taxonomy code set, which is classified as Thoracic Surgery (Cardiothoracic Vascular Surgery).

The NPI profile was previously updated about 4 years ago on Apr 09, 2022. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for JOHN GREHAN below.

NPI Profile for
JOHN F. GREHAN

NPI Number
1275549784
Enumeration Date

(about 20 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
JOHN F. GREHAN
Credentials
MD PHD
Primary location
1301 W 18TH ST
SIOUX FALLS, SD 57105-0401
Phone: (605) 312-2100 Fax:
1 Other location(s):
225 N Smith Ave
#100A
St Paul, MN 55102
Phone: (651) 241-7176
Fax: (651) 241-5100
Mailing address
PO BOX 5074
SIOUX FALLS, SD 57117-5074
Phone: Fax:
Sole Proprietor
No
Updated
Certification Date
Apr 09, 2022

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
208G00000X
- Thoracic Surgery (Cardiothoracic Vascular Surgery) (Primary)		 OH 35.088377

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
UNIVERSITY OF MINNESOTA MEDICAL SCHOOL - Graduated 1995
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
JOHN GREHAN is affiliated with the following medical group(s):
  • HOSPITAL
    • SANFORD USD MEDICAL CENTER
      1305 W 18TH ST POST OFFICE BOX 5039
      SIOUX FALLS, SD 57117

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