Wonil Tae, MD
NPI 1336301779 · Endocrinology, Diabetes & Metabolism Physician · Alton, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wonil Tae, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Alton, IL (NPI 1336301779).
Provider details
- NPI number
- 1336301779
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 30927 (AL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,185 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 462 | $123 |
| Hemoglobin A1c Level83036 | 385 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 179 | $88 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 80 | $34 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 55 | $165 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 57 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 440 | 120 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 393 | 122 |
| Tirzepatidebrand: Mounjaro | 356 | 77 |
| Metformin Hcl | 323 | 90 |
| Levothyroxine Sodium | 305 | 77 |
| Empagliflozinbrand: Jardiance | 262 | 67 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-26
- Last updated
- 2025-04-23
- Certified
- 2025-04-23
Frequently asked questions
- What is Wonil Tae's NPI number?
- Wonil Tae's National Provider Identifier (NPI) is 1336301779, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wonil Tae's specialty?
- Wonil Tae is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Wonil Tae located?
- Wonil Tae's practice location on file with NPPES is 2 Saint Anthonys Way, Alton, IL 62002-4569.
- What is Wonil Tae's phone number?
- The practice phone number listed in the NPPES registry for Wonil Tae is (618) 642-2222.
- Does Wonil Tae accept Medicare?
- Wonil Tae is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wonil Tae's NPI active?
- Yes — Wonil Tae's NPI (1336301779) is active in the NPPES registry as of the last update on 2025-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.