JUSTIN A. WILLIAMS MD – NPI #1063049823
Pediatrics
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
JUSTIN WILLIAMS is a physician located in SAN FRANCISCO, CA. NPPES has assigned the NPI number 1063049823 to JUSTIN WILLIAMS on March 23, 2020. It is a Type-1 NPI, indicating this NPI number is associated with an individual. The primary taxonomy selected by this provider is 208000000X from the Health Care Provider Taxonomy code set, which is classified as Pediatrics.
The NPI profile was last updated on Mar 13, 2026. 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 JUSTIN WILLIAMS below.
NPI Profile for
JUSTIN A. WILLIAMS
(more than 6 years ago)
SAN FRANCISCO, CA 94143-2549 Phone: (415) 476-5001 Fax:
OAKLAND, CA 94618-1032 Phone: (510) 428-3848 Fax:
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 |
|---|---|---|
| 208000000X - Pediatrics (Primary) |
CA | A186342 |
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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