NPI Registry
Contact usSign up free
Individual

GARY MAASSEN

Active
Find providers by NPI
Individual

GARY MAASSEN

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
R7H60
MO

Other

Other identifiers
Code
Description
Identifier
Issuer
State
01
000000010024
ESSENCE
MO
01
0400519
UHC
MO
01
127466
GHP
MO
01
127490
GHP
MO
01
25688
BCBS
MO
01
260293
HEALTHLINK
MO
01
26093
BCBS
MO
01
4540903
AETNA
MO
01
F92833
MERCY
MO
Enumeration date
11/07/2005
Last updated
09/24/2012
Update your record

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 at https://nppes.cms.hhs.gov.

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
Product
  • Claims
  • Eligibility checks
  • EDI platform