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DR. KATHERINE YAN LI MD
NPI 1538904255
Internal Medicine in Saint Louis, MO

Active since June 25, 2024PECOS Enrolled
660 S EUCLID AVE, SAINT LOUIS, MO 63110(314) 362-8065 Get Directions Write a Review

NPPES record last updated: June 13, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 13, 2025, Jun 25, 2024 (2 updates tracked since 2024).

About Dr. Katherine Yan Li Md NPPES

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

DR. KATHERINE YAN LI MD (NPI 1538904255) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (2025021823) and active in the NPI registry since June 2024. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1538904255
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. KATHERINE YAN LICredential: MD
Location Address660 S EUCLID AVESaint Louis, MO 63110-1010
Mailing Address660 S Euclid AveSaint Louis, MO 63110-1010 · (314) 362-8065
Phone(314) 362-8065
Sole ProprietorNo
Enumeration DateJune 25, 2024
Last NPPES UpdateJune 13, 20252 updates tracked since enumeration
NPPES CertifiedJune 13, 2025
✔ NPI 1538904255 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · 2025021823
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
660 S EUCLID AVE, Saint Louis, MO 63110
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Katherine Yan Li Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 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 20

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

WUSM BJC ACO PROVIDERS
Clinic/Center (Multi-Specialty)
660 S EUCLID AVE, CAMPUS BOX 8081
SAINT LOUIS, MO 63110
St. Louis City (314) 273-0770
ANDREA YUE-EN SUN MD
Student in an Organized Health Care Education/Training Program
660 S EUCLID AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 362-8065
MEGAN CLAIRE KERNS MD
Student in an Organized Health Care Education/Training Program
660 S EUCLID AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 362-8065
WASHINGTON UNIVERSITY
Clinic/Center (Multi-Specialty)
660 S EUCLID AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 362-5184
SARAH B. ASCHKENASI MD
Pediatrics
660 S EUCLID AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 286-1264
DR. BENJAMIN HARRIS TIMMINS M.D.
Plastic Surgery
660 S EUCLID AVE
SAINT LOUIS, MO 63110
St. Louis City (435) 764-4932
ANDREA NAES NP
Nurse Practitioner
660 S EUCLID AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 362-3706
DR. JONATHAN M GREEN MD
Internal Medicine (Pulmonary Disease)
660 S EUCLID AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 454-8917

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 Katherine Li's NPI number?

The NPI number for Katherine Li is 1538904255. It was assigned to this individual provider in the NPPES registry on June 25, 2024.

Where is Katherine Li located?

Katherine Li practices at 660 S Euclid Ave, Saint Louis, MO 63110. The listed phone number is (314) 362-8065.

What is Katherine Li's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Katherine Li enrolled in Medicare?

Yes. Katherine Li is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Katherine Li was last updated on June 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.