Lauren Osias
Physician Assistant · Chesterfield, MO
Lauren Osias is a physician assistant with a practice address in Chesterfield, Missouri, and NPI 1275345951, issued on Jan 21, 2025. Check the license with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lauren Osias
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 226 S Woods Mill RD Ste 58W, Chesterfield, MO 63017
- Phone
- (314) 878-2888
- Enumerated
- Jan 21, 2025
- Record last updated
- May 1, 2025
- Fax
- (314) 576-8187
- Medicare enrollment
- Enrolled (PECOS I20250509002635); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 1,790 in Missouri → Look up another NPI →
Also registered at 226 S Woods Mill RD Ste 58W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cathy Schroy, AUDAudiologist1053517698
- Jennifer Summers, PA-C, RDSurgical Physician Assistant1497997126
Verify Lauren Osias in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Neurosurgery And Neurology LLCChesterfield, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lauren Osias among 1,790 physician assistant records in Missouri
Lauren Osias is one of 1,790 physician assistant records with a practice address in Missouri. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 90% of them.
- NPI issued2025 · 90% of these records are older, 4% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2024 · median 2019 among the 1,250 with a school on file
- Record last updated2025 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
43 physician assistant records list a practice address in Chesterfield
They are 43 of the 2,132 NPPES records with a practice address in Chesterfield, and 1,790 physician assistant records in Missouri.
All 1,790 in Missouri → Every provider in Chesterfield → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Lizel Alvarado, PAChesterfield, MO 630171588835953
- Amy Bloomfield, PAChesterfield, MO 630171790976173
- Andrew Clark, PAChesterfield, MO 630171497008254
- Kelli Dean Riegel, PA-CChesterfield, MO 630171811295710
- Jeremy Dunbarr, PA-CChesterfield, MO 630171831191014
- Kymberly Gomez, PAChesterfield, MO 630171225068851
- Megan Hudson, PAChesterfield, MO 630171467767087
- Michael Raethka, PAChesterfield, MO 630171033109392
Common questions
What is Lauren Osias's NPI number?
Lauren Osias's National Provider Identifier (NPI) is 1275345951, issued on Jan 21, 2025. An NPI identifies a provider in billing; it is not a license.
Where is Lauren Osias located?
The NPPES record lists a practice address at 226 S Woods Mill RD Ste 58W, Chesterfield, MO, 63017. Phone: (314) 878-2888. Providers update this record themselves, so call before visiting.
How can I verify Lauren Osias's license?
Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.