Yu Chen, M.D.
NPI 1740501014 · Radiation Oncology Physician · Lake St Louis, MO
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yu Chen, M.D. is a Radiation Oncology Physician provider in Lake St Louis, MO (NPI 1740501014).
Provider details
- NPI number
- 1740501014
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 125058393 (IL)
Specialties & taxonomies
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
16 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
989 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) |
|---|---|---|
| Stereoscopic X-Ray Guidance for Localization of Target Volume for the Delivery of Radiation TherapyG6002 | 240 | $20 |
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 120 | $43 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 115 | $183 |
| Design and Construction of Complex Radiation Treatment Device77334 | 108 | $58 |
| Calculation of Radiation Therapy Dose77300 | 97 | $31 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 72 | $63 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 36 | — |
| Memantine Hcl | 19 | — |
| Omeprazole | 15 | — |
| Silver Sulfadiazinebrand: Ssd | 15 | 13 |
| Triamcinolone Acetonide | 15 | 11 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 12 | — |
| Silver Sulfadiazine | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-21
- Last updated
- 2020-12-23
- Certified
- 2020-12-23
Frequently asked questions
- What is Yu Chen's NPI number?
- Yu Chen's National Provider Identifier (NPI) is 1740501014, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yu Chen's specialty?
- Yu Chen is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Yu Chen located?
- Yu Chen's practice location on file with NPPES is 400 Medical Plz Ste 100, Lake St Louis, MO 63367-1493.
- What is Yu Chen's phone number?
- The practice phone number listed in the NPPES registry for Yu Chen is (636) 638-8600.
- Does Yu Chen accept Medicare?
- Yu Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yu Chen's NPI active?
- Yes — Yu Chen's NPI (1740501014) is active in the NPPES registry as of the last update on 2020-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.