WILLIAM A. WALKER MD – NPI #1144209446
Pediatrics
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.
WILLIAM WALKER is a physician located in BOSTON, MA. NPPES has assigned the NPI number 1144209446 to WILLIAM WALKER on January 13, 2006. It is a Type-1 NPI, indicating this NPI number is associated with an individual. The primary taxonomy selected by this provider is 2080P0206X from the Health Care Provider Taxonomy code set, which is classified as Pediatrics, specializing in Pediatric Gastroenterology
The NPI profile was previously updated about 19 years ago on Jul 08, 2007. 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 WILLIAM WALKER below.
NPI Profile for
WILLIAM A. WALKER
(more than 20 years ago)
MASSACHUSETTS GENERAL HOSPITAL
BOSTON, MA 02114 Phone: (617) 726-7988 Fax: (617) 724-1731
MASS GENERAL PHYSICIAN ORGANIZATION
CHARLESTOWN, MA 02129-9142 Phone: (617) 724-0287 Fax: (917) 726-2894
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 |
|---|---|---|
| 2080P0206X - Pediatrics / Pediatric Gastroenterology (Primary) |
MA | 31989 |
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.