Anastasia Brierton, DO
Obstetrics & Gynecology Physician · Libertyville, IL
Anastasia Brierton, DO is an obstetrics & gynecology physician with a practice address in Libertyville, Illinois, and NPI 1992385520, issued on Apr 8, 2021. Check the license (Illinois 036.175110, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Anastasia Brierton
- Credential
- DO
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 036.175110 IL
Self-reported in NPPES; status is on the state search - Practice location
- 801 S Milwaukee Ave Ste 100, Libertyville, IL 60048
- Phone
- (847) 680-3400
- Enumerated
- Apr 8, 2021
- Record last updated
- Jul 24, 2025
- Medicare enrollment
- Enrolled (PECOS I20260520002271); accepts Medicare assignment
- Medical or professional school
- Kansas City University Of Med & Biosciences, College Of Osteo Med, 2021
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 801 S Milwaukee Ave Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Megan Davis, MDObstetrics & Gynecology Physician1790364412
- Rannveig Middleton, M.D.Obstetrics & Gynecology Physician1912292822
Verify Anastasia Brierton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.175110Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
89 Medicare Part D claims for 42 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Ibuprofen29 claims
- Hydrocodone-Acetaminophen12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- OB-Gyne Associates OF Libertyville SCLibertyville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anastasia Brierton among 2,062 obstetrics & gynecology physician records in Illinois
Anastasia Brierton, DO is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 88% of them.
- NPI issued2021 · 88% of these records are older, 10% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2021 · median 2006 among the 1,168 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Illinois
There are 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Libertyville → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Megan Davis, MDLibertyville, IL 600481790364412
- Michael Hu, MDLibertyville, IL 600481114909942
- Yasir Mekki, MDLibertyville, IL 600481902947575
- Rannveig Middleton, M.D.Libertyville, IL 600481912292822
- Eileen Morrison, MDLibertyville, IL 600481770575797
- Akemi Nakanishi, M.D.Libertyville, IL 600481366436388
- Vincenzo Padovano, MDLibertyville, IL 600481851376032
- Jennifer Schaefer, M.D.Libertyville, IL 600481669468484
Common questions
What is Anastasia Brierton, DO's NPI number?
Anastasia Brierton, DO's National Provider Identifier (NPI) is 1992385520, issued on Apr 8, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Anastasia Brierton, DO located?
The NPPES record lists a practice address at 801 S Milwaukee Ave Ste 100, Libertyville, IL, 60048. Phone: (847) 680-3400. Providers update this record themselves, so call before visiting.
How can I verify Anastasia Brierton, DO's license?
NPPES lists Illinois license number 036.175110, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Anastasia Brierton, DO prescribe under Medicare Part D?
In 2024, Anastasia Brierton, DO had 89 Medicare Part D claims for 42 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions 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.