Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Msa Alliance, LLC

Organization Sleep Medicine (Internal Medicine) Physician · NPI 1689097529

Msa Alliance, LLC is a Sleep Medicine (Internal Medicine) Physician in O Fallon, Illinois. Registered with an NPI since 2014.

In the registry since
2014
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

310 N Seven Hills Rd
O Fallon, IL 62269-4111
Phone: (618) 628-2502
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sleep Medicine (Internal Medicine) Physician (primary) Taxonomy 207RS0012X

Record details

NPI number1689097529
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official James Davis — Executive Director · (618) 257-4644
NPI enumeratedJanuary 29, 2014
Last updated in NPPESJanuary 29, 2014
Mailing address310 N Seven Hills Rd, O Fallon, IL 62269-4111