Update this page – If you believe information in your NPPES record is inaccurate, or if you wish to update or deactivate your NPI, you can do so directly with CMS.
Individual
MARK IRWIN
Active
Individual
MARK IRWIN
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
M.D.
Taxonomy
Speciality
Code
Description
License number
State
207R00000X
Internal Medicine Physician
Primary
336-023425
IL
Other
Other identifiers
Code
Description
Identifier
Issuer
State
01
—
000000010019
ESSENCE
IL
05
—
036058840
—
IL
01
—
0450347
UHC
IL
01
—
113626
HEALTHLINK
IL
01
—
127443
GHP
IL
01
—
129537
BCBS TRI ST
IL
01
—
5561291
AETNA
IL
01
—
8221955
BCBS IL
IL
01
—
D14440
MERCY
IL
Enumeration date
11/04/2005
Last updated
09/21/2012
About Stedi
Stedi is the only programmable healthcare clearinghouse. You can use Stedi's APIs to process eligibility checks, claims, remits, and more.
Sign up