Individual provider · Type 1 NPI
Katherine Madison Macmillan, MD
Gastroenterology Physician · Simpsonville, SC
Practice location
741 SE Main St
Simpsonville, SC 29681-3237
Fax (864) 522-8425
Mailing address
300 E Mcbee Ave Ste 300
Greenville, SC 29601-2899
Other practice locations
- 727 SE Main St Ste 340, Simpsonville, SC 29681-3249 · (864) 455-2888
- 13400 E Shea Blvd, Scottsdale, AZ 85259-5499 · (480) 301-8000
Specialties and licenses
| Taxonomy | Code | License |
|---|---|---|
| Internal Medicine Physician | 207R00000X | 85580 (SC) |
| Internal Medicine Physician | 207R00000X | 009641 (GA) |
| Gastroenterology Physician | 207RG0100X | 72379 (AZ) |
| Gastroenterology Physician Primary | 207RG0100X | 85580 (SC) |
Gastroenterology Physician: An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
2 other providers at this address
About NPI 1780117416
Katherine Madison Macmillan, MD's National Provider Identifier is 1780117416, issued on Apr 10, 2017. The primary taxonomy on file is Gastroenterology Physician (207RG0100X), and the practice location is in Simpsonville, SC. The record was last updated on Feb 23, 2026.