Mason BiasM.D.
Mason Bias, M.D. is an Ophthalmology provider in Saint Louis, MO affiliated with 1 ambulatory surgery center in MO, as of July 2026.
- NPI1912982794
- Registered2005
- Centers1
- StateMO
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
Mason Bias at a glance
- Provider
- Mason Bias
- Credential
- M.D.
- Specialty
- Ophthalmology
- Procedures
- Ophthalmology CPT codes
- Location
- Saint Louis, MO
- NPI registered
- 2005
- NPI
- 1912982794
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Mason Bias practice?
Mason Bias, M.D. is based in Saint Louis, MO and is affiliated with 1 ambulatory surgery center: Midamerica Surgery Center LLC in Chesterfield, MO. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Mason Bias's NPI number?
Mason Bias's National Provider Identifier (NPI) is 1912982794, registered in 2005. Specialty on record: Ophthalmology; credential M.D.
How many Ophthalmology providers in Missouri work at ambulatory surgery centers?
110 Ophthalmology surgeons and proceduralists in Missouri are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Mason Bias among them. The Missouri Ophthalmology directory lists each one by city with credential, NPI, and center affiliations.
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