Wonil Tae, MD
Endocrinology, Diabetes & Metabolism Physician · Alton, IL
Wonil Tae, MD is an endocrinology, diabetes & metabolism physician with a practice address in Alton, Illinois, and NPI 1336301779, issued on Jun 26, 2008. Check the license (Illinois 036121542, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Wonil Tae
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- 036121542 IL
30927 AL
Self-reported in NPPES; status is on the state search - Practice location
- 2 Saint Anthonys Way, Alton, IL 62002
- Phone
- (618) 642-2222
- Enumerated
- Jun 26, 2008
- Record last updated
- Apr 23, 2025
- Medicare enrollment
- Enrolled (PECOS I20160520001695); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 436 in Illinois → Look up another NPI →
Also registered at 2 Saint Anthonys Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lisa Fritcher, PA-CPhysician Assistant1700112521
Verify Wonil Tae 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 036121542Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
5,175 Medicare Part D claims for 632 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 59% of claims.
Most prescribed
- Ozempic440 claims
- Lantus Solostar393 claims
- Mounjaro356 claims
- Metformin Hcl323 claims
- Levothyroxine Sodium305 claims
- Jardiance262 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
- Osf Multi-Specialty GroupAlton, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wonil Tae among 436 endocrinology, diabetes & metabolism physician records in Illinois
Wonil Tae, MD is one of 436 endocrinology, diabetes & metabolism physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 43% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1997 · median 2006 among the 295 with a school on file
- Record last updated2025 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Illinois
There are 436 endocrinology, diabetes & metabolism physician records in Illinois.
All 436 in Illinois → Every provider in Alton → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Wael Girgis, M.D.Alton, IL 620021508053802
- Parishi Patel, DOGodfrey, IL 620351649733353
- Anita Sandhu, MDMaryville, IL 620621831162288
- Sujata Sitaula, MDMaryville, IL 620621548678261
- Sathya Subbiah, M.D.Mattoon, IL 619381033128764
- William Marshall, MDDanville, IL 618321205943784
- Toufic Abdo, MDChampaign, IL 618221962497032
- Shruti Dave, M.D.Champaign, IL 618221558387217
Common questions
What is Wonil Tae, MD's NPI number?
Wonil Tae, MD's National Provider Identifier (NPI) is 1336301779, issued on Jun 26, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Wonil Tae, MD located?
The NPPES record lists a practice address at 2 Saint Anthonys Way, Alton, IL, 62002. Phone: (618) 642-2222. Providers update this record themselves, so call before visiting.
How can I verify Wonil Tae, MD's license?
NPPES lists Illinois license number 036121542, 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 Wonil Tae, MD prescribe under Medicare Part D?
In 2024, Wonil Tae, MD had 5,175 Medicare Part D claims for 632 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.