Lee Yong, M.D.
NPI 1952538522 · Infectious Disease Physician · Saint Charles, MO
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lee Yong, M.D. is a Infectious Disease Physician provider in Saint Charles, MO (NPI 1952538522).
Provider details
- NPI number
- 1952538522
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2011001240 (MO)
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
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
1,083 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 510 | $75 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 290 | $113 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 147 | $163 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 136 | $124 |
Typical Medicare-allowed amounts for these services range $75–$163 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ceftriaxone Sodiumbrand: Ceftriaxone | 64 | 17 |
| Cefazolin Sodium | 63 | 14 |
| Daptomycin | 49 | — |
| Cefadroxil | 38 | 18 |
| Doxycycline Hyclate | 37 | 11 |
| Vancomycin Hcl | 29 | — |
| Amoxicillin | 27 | — |
| Piperacillin Sodium/Tazobactambrand: Piperacillin-Tazobactam |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-06-22
- Last updated
- 2021-07-19
- Certified
- 2021-04-01
Frequently asked questions
- What is Lee Yong's NPI number?
- Lee Yong's National Provider Identifier (NPI) is 1952538522, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lee Yong's specialty?
- Lee Yong is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Lee Yong located?
- Lee Yong's practice location on file with NPPES is 330 1st Capitol Dr Ste 260, Saint Charles, MO 63301-2888.
- What is Lee Yong's phone number?
- The practice phone number listed in the NPPES registry for Lee Yong is (636) 925-0900.
- Does Lee Yong accept Medicare?
- Lee Yong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lee Yong's NPI active?
- Yes — Lee Yong's NPI (1952538522) is active in the NPPES registry as of the last update on 2021-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.