Lee Kien Yong, M.D.
Infectious Disease Physician · Saint Charles, MO
Lee Kien Yong, M.D. is an infectious disease physician with a practice address in Saint Charles, Missouri, and NPI 1952538522, issued on Jun 22, 2009. Check the license (Missouri 2011001240, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Lee Kien Yong
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License numbers
- 2011001240 MO
036123437 IL
Self-reported in NPPES; status is on the state search - Practice location
- 330 1St Capitol Dr Ste 260, Saint Charles, MO 63301
- Phone
- (636) 925-0900
- Enumerated
- Jun 22, 2009
- Record last updated
- Jul 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (636) 925-0960
- Medicare enrollment
- Enrolled (PECOS I20111013000300); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 212 in Missouri → Look up another NPI →
Also registered at 330 1St Capitol Dr Ste 260
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Manokiran Patri, M.D.Infectious Disease Physician1649204173
- Shephali Wulff, D.OInfectious Disease Physician1174789747
Verify Lee Kien Yong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2011001240Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average infectious disease physician in 2024
483 Medicare Part D claims for 120 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Ceftriaxone64 claims
- Cefazolin Sodium63 claims
- Daptomycin49 claims
- Cefadroxil38 claims
- Doxycycline Hyclate37 claims
- Vancomycin Hcl29 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
- Infectious Diseases PCSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lee Kien Yong among 212 infectious disease physician records in Missouri
Lee Kien Yong, M.D. is one of 212 infectious disease physician records with a practice address in Missouri. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 58% of them.
- NPI issued2009 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2003 · median 2004 among the 147 with a school on file
- Record last updated2021 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Missouri
There are 212 infectious disease physician records in Missouri.
All 212 in Missouri → Every provider in Saint Charles → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Manokiran Patri, M.D.Saint Charles, MO 633011649204173
- Shephali Wulff, D.OSaint Charles, MO 633011174789747
- David Janssen, M.D.O Fallon, MO 633681700995339
- Nicolo Cabrera, MDSaint Louis, MO 631411366858797
- Michael Hendrix, MDSaint Louis, MO 631411881076503
- Jad Khoury, M.D.Saint Louis, MO 631411144250028
- Frederick Kuhlmann, MDSaint Louis, MO 631411417981481
- Hamzah Mohd, M.D.,Saint Louis, MO 631411952559320
Common questions
What is Lee Kien Yong, M.D.'s NPI number?
Lee Kien Yong, M.D.'s National Provider Identifier (NPI) is 1952538522, issued on Jun 22, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Lee Kien Yong, M.D. located?
The NPPES record lists a practice address at 330 1St Capitol Dr Ste 260, Saint Charles, MO, 63301. Phone: (636) 925-0900. Providers update this record themselves, so call before visiting.
How can I verify Lee Kien Yong, M.D.'s license?
NPPES lists Missouri license number 2011001240, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lee Kien Yong, M.D. prescribe under Medicare Part D?
In 2024, Lee Kien Yong, M.D. had 483 Medicare Part D claims for 120 beneficiaries; the average among infectious disease physician prescribers was 689. 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.