Individual
ZACHARY JOHNSTON
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
NP
Contact information
Practice address
1450 TREAT BLVD STE 120A, WALNUT CREEK, CA 94597-2168
(925) 296-7350
Mailing address
1450 TREAT BLVD STE 300, WALNUT CREEK, CA 94597-2168
(925) 952-2828
Taxonomy
Speciality
Code
Description
License number
State
363LA2200X
Adult Health Nurse Practitioner
Primary
95035553
CA
Other
Enumeration date
06/16/2025
Last updated
10/30/2025
About Stedi
Stedi is the only programmable healthcare clearinghouse. You can use Stedi's APIs to process eligibility checks, claims, remits, and more.
Contact us