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KEVIN TIANBER YIN
NPI 1689311011
Internal Medicine in O Fallon, MO

Active since May 17, 2022PECOS EnrolledAccepts Medicare Assignment
2223 TECHNOLOGY DR STE 35, O FALLON, MO 63368(636) 561-5999 Get Directions Write a Review

NPPES record last updated: August 6, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 6, 2025, Jul 1, 2025, Jul 5, 2022 and 1 more (4 updates tracked since 2022).

About Kevin Tianber Yin NPPES

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

KEVIN TIANBER YIN (NPI 1689311011) is an individual internal medicine provider in O Fallon, Missouri, licensed in Missouri (2025011705) and active in the NPI registry since May 2022. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Saint Louis University School Of Medicine (2022).

NPPES Registry Identity

NPI1689311011
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameKEVIN TIANBER YIN
Location Address2223 TECHNOLOGY DR STE 35O Fallon, MO 63368-7272
Mailing AddressPo Box 776084Chicago, IL 60677-6084 · (369) 787-9026
Phone(636) 561-5999
Sole ProprietorYes
Medical School CMSSaint Louis University School Of MedicineGraduated 2022
Enumeration DateMay 17, 2022
Last NPPES UpdateAugust 6, 20254 updates tracked since enumeration
NPPES CertifiedAugust 6, 2025
✔ NPI 1689311011 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · 2025011705
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.
2223 TECHNOLOGY DR STE 35, O Fallon, MO 63368
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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

Kevin Tianber Yin 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 ID8224418017
PECOS Enrollment IDI20251006000234
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.

Hospital Affiliations CMS Care Compare

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

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260020
Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63368 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

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

RACHEL LEIGH WELLS FNP
Nurse Practitioner (Family)
2223 TECHNOLOGY DR STE 35
O FALLON, MO 63368
St. Charles County (636) 561-5999

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 Kevin Yin's NPI number?

The NPI number for Kevin Yin is 1689311011. It was assigned to this individual provider in the NPPES registry on May 17, 2022.

Where is Kevin Yin located?

Kevin Yin practices at 2223 Technology Dr Ste 35, O Fallon, MO 63368. The listed phone number is (636) 561-5999.

What is Kevin Yin's specialty?

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

Is Kevin Yin enrolled in Medicare?

Yes. Kevin Yin 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 Kevin Yin 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 2 other insurers list Kevin Yin 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 Kevin Yin affiliated with any hospitals?

According to CMS data, Kevin Yin is affiliated with Mercy Hospital St Louis.

When was this NPI record last updated?

The NPPES record for Kevin Yin was last updated on August 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.