Individual
DR. JOHN W ROARK JR.
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
MD
Contact information
Practice address
3741 LINWOOD AVE, OAKLAND, CA 94602-1711
(510) 589-8774
Mailing address
3741 LINWOOD AVE, OAKLAND, CA 94602-1711
(510) 589-8774
Taxonomy
Speciality
Code
Description
License number
State
207RG0100X
Gastroenterology Physician
Primary
G038581
CA
Other
Enumeration date
05/03/2006
Last updated
02/10/2026
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