RILEY S. GROGAN MD – NPI #1669935631
Surgery
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
RILEY GROGAN is a surgeon located in MISSOULA, MT. NPPES has assigned the NPI number 1669935631 to RILEY GROGAN on April 08, 2019. It is a Type-1 NPI, indicating this NPI number is associated with an individual. According to the NPI data, there are 2 additional location(s) assigned to this provider which are listed below. The primary taxonomy selected by this provider is 208600000X from the Health Care Provider Taxonomy code set, which is classified as Surgery.
The NPI profile was last updated on Nov 16, 2025. 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 RILEY GROGAN below.
NPI Profile for
RILEY S. GROGAN
(more than 7 years ago)
MISSOULA, MT 59802-4008 Phone: (406) 329-5828 Fax: (406) 329-5864
2 Other location(s):
Charleston, SC 29425-5429
Phone: (406) 871-3770
LA Crosse, WI 54601-5429
Phone: (608) 782-7300
PASADENA, CA 91110-4110 Phone: (406) 329-5828 Fax: (406) 329-5864
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.
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 |
|---|---|---|
| 208600000X - Surgery (Primary) |
WI | 74548-20 |
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
- Refer to Part B
- Order Durable Medical Equipment
- Refer to Home Health Agency
- Order Power Mobility Devices
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