Individual provider · Type 1 NPI
William Alian Walker, MD
Pediatric Gastroenterology Physician · Boston, MA
Practice location
55 Fruit Street B114 3501, Massachusetts General Hospital
Boston, MA 02114
Fax (617) 724-1731
Mailing address
PO Box 9142, Mass General Physician Organization
Charlestown, MA 02129-9142
Specialties and licenses
| Taxonomy | Code | License |
|---|---|---|
| Pediatric Gastroenterology Physician Primary | 2080P0206X | 31989 (MA) |
Pediatric Gastroenterology Physician: A pediatrician who specializes in the diagnosis and treatment of diseases of the digestive systems of infants, children and adolescents. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using lighted scopes to see internal organs.
Other pediatric gastroenterology physician providers in Boston
- Meenakshi Rao, MD, PhDPediatric Gastroenterology Physician Boston, MA NPI 1043493273
- Jay R. Thiagarajah, MBBS, PhDPediatric Gastroenterology Physician Boston, MA NPI 1043539794
- Laurie E. Fishman, MDPediatric Gastroenterology Physician Boston, MA NPI 1053324400
- Stephen Clayton Hardy, MDPediatric Gastroenterology Physician Boston, MA NPI 1053389395
- Victor L. Fox, MDPediatric Gastroenterology Physician Boston, MA NPI 1063529220
- Alexandra N. Carey, MDPediatric Gastroenterology Physician Boston, MA NPI 1063674414
- Katherine F. Sweeny, MDPediatric Gastroenterology Physician Boston, MA NPI 1063855658
- Danielle Galler Rabinowitz, MDPediatric Gastroenterology Physician Boston, MA NPI 1063971042
About NPI 1144209446
William Alian Walker, MD's National Provider Identifier is 1144209446, issued on Jan 13, 2006. The primary taxonomy on file is Pediatric Gastroenterology Physician (2080P0206X), and the practice location is in Boston, MA. The record was last updated on Jul 13, 2026.