Individual
DR. DOUGLAS A SHUMAKER
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
MD
Contact information
Practice address
9701 SW BARNES RD, STE 300, PORTLAND, OR 97225-6689
(503) 297-8081
(503) 292-6601
Mailing address
541 NE 20TH AVE STE 225, PORTLAND, OR 97232-2895
(503) 963-2801
(503) 963-2825
Taxonomy
Speciality
Code
Description
License number
State
207KA0200X
Allergy Physician
MD19573
OR
207RG0100X
Gastroenterology Physician
Primary
MD19573
OR
Other
Other identifiers
Code
Description
Identifier
Issuer
State
05
—
287462
—
OR
05
—
8502510
—
WA
Enumeration date
06/27/2005
Last updated
12/04/2025
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