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LEE KIEN YONG M.D.
NPI 1952538522
Internal Medicine - Infectious Disease in Saint Charles, MO

Active since June 22, 2009PECOS EnrolledAccepts Medicare Assignment
330 1ST CAPITOL DR STE 260, SAINT CHARLES, MO 63301(636) 925-0900(636) 925-0960 Get Directions Write a Review

NPPES record last updated: July 19, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Lee Kien Yong M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LEE KIEN YONG M.D. (NPI 1952538522) is an individual infectious disease provider in Saint Charles, Missouri, licensed in Missouri (2011001240) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Ssm St Joseph Health Center, and is a graduate of Other (2003).

NPPES Registry Identity

NPI1952538522
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameLEE KIEN YONGCredential: M.D.
Location Address330 1ST CAPITOL DR STE 260Saint Charles, MO 63301-2888
Mailing Address335 Oak Stand CtChesterfield, MO 63005-1310 · (636) 751-2042
Phone(636) 925-0900
Fax(636) 925-0960
Sole ProprietorNo
Medical School CMSOtherGraduated 2003
Enumeration DateJune 22, 2009
Last NPPES UpdateJuly 19, 2021
NPPES CertifiedApril 1, 2021
✔ NPI 1952538522 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
Licenses✔ Licensed in MO · 2011001240✔ Licensed in IL · 036123437
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
330 1ST CAPITOL DR STE 260, Saint Charles, MO 63301
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Lee Kien Yong M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7214109354
PECOS Enrollment IDI20111013000300
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
510 services223 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
290 services128 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
147 services139 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
136 services127 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ssm St Joseph Health Center

Acute Care Hospitals · Saint Charles, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260005
Location300 1st Capitol DrSaint Charles, MO 63301 · St. Charles County
Emergency services

Ssm Health Depaul Hospital St Louis

Acute Care Hospitals · Bridgeton, MO
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260104
Location12303 Depaul DriveBridgeton, MO 63044 · St. Louis County
Emergency services Birthing friendly

Ssm St Joseph Hospital West

Acute Care Hospitals · Lake Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260200
Location100 Medical PlazaLake Saint Louis, MO 63367 · St. Charles County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63301 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SHEPHALI HIMANSHU WULFF D.O
Internal Medicine (Infectious Disease)
330 1ST CAPITOL DR STE 260
SAINT CHARLES, MO 63301
St. Charles County (636) 925-0900
DR. MANOKIRAN PATRI M.D.
Internal Medicine (Infectious Disease)
330 1ST CAPITOL DR STE 260
SAINT CHARLES, MO 63301
St. Charles County (636) 925-0900

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lee Yong's NPI number?

The NPI number for Lee Yong is 1952538522. It was assigned to this individual provider in the NPPES registry on June 22, 2009.

Where is Lee Yong located?

Lee Yong practices at 330 1st Capitol Dr Ste 260, Saint Charles, MO 63301. The listed phone number is (636) 925-0900.

What is Lee Yong's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Lee Yong enrolled in Medicare?

Yes. Lee Yong is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Lee Yong accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 4 other insurers list Lee Yong as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Lee Yong affiliated with any hospitals?

According to CMS data, Lee Yong is affiliated with Ssm St Joseph Health Center, Ssm Health Depaul Hospital St Louis and Ssm St Joseph Hospital West.

When was this NPI record last updated?

The NPPES record for Lee Yong was last updated on July 19, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.