DR. PETER KONG-WOO YOON M.D.
NPI 1013917715
Specialist in Saint Louis, MO

Q: What is Peter Yoon's NPI number?

The NPI number for Peter Yoon is 1013917715. It was assigned to this individual provider in the NPPES registry on July 26, 2005. The provider is also known as Dr. Kong-Woo Peter Yoon M.D..

Q: What is Peter Yoon's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for Peter Yoon was last updated on June 28, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.

Active since July 26, 2005PECOS Enrolled

621 S NEW BALLAS RD, STE 297A, SAINT LOUIS, MO 63141(314) 251-6364(314) 251-7897 Get Directions Write a Review

NPPES record last updated: June 28, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Peter Kong-woo Yoon M.d. NPPES

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

DR. PETER KONG-WOO YOON M.D. (NPI 1013917715) is an individual specialist in Saint Louis, Missouri, licensed in Missouri (R3E52) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1013917715

Entity TypeIndividualMale

Primary Taxonomy174400000X

Provider Legal NameDR. PETER KONG-WOO YOONCredential: M.D.

Location Address621 S NEW BALLAS RD, STE 297ASaint Louis, MO 63141-8232

Mailing Address621 S New Ballas Rd, Suite 297aSaint Louis, MO 63141-8232 · (314) 251-6364 · Fax (314) 251-7897

Phone(314) 251-6364

Fax(314) 251-7897

Sole ProprietorNo

Enumeration DateJuly 26, 2005

Last NPPES UpdateJune 28, 2011

✔ NPI 1013917715 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in MO · R3E52

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

621 S NEW BALLAS RD, Saint Louis, MO 63141

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Other Names 1

Former Name (1)Dr. Kong-woo Peter Yoon M.d.

Other Identifiers 9

Other337533MO · Group Health Plan

Other261839808MO · Champus

Other119685MO · Blue Cross Blue Shield

Other06-01313MO · United Healthcare

OtherP00663995MO · Medicare Railroad

Medicare PIN331405638MO

Other261839808MO · Mercy Health Plans

Other261839808MO · Great West Health Care

Other102280MO · Healthlink Ppo

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Peter Kong-woo Yoon M.d. 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.

Medicare Billing Reassignment

Medicare enrollment records show Peter Yoon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mercy Hospitals East Communities

1.5 mi

Clinic/Center

615 S NEW BALLAS RD
Saint Louis, MO 63141

Reassigned Medicare billing, Missouri enrollment
435 clinicians in this Medicare group

NPI 1851431738 (314) 251-6382

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

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.

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

17 services17 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

15 services14 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Breast Cancer Screening

Percentage of women 50-74 years of age who had a mammogram to screen for breast cancer

88%241 patients4/55-star benchmark: 92%

Colorectal Cancer Screening

Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer

88%554 patients5/55-star benchmark: 85%

Diabetes: Eye Exam

Percentage of patients 18-75 years of age with diabetes who had a retinal or dilated eye exam by an eye care professional during the measurement period or a negative retinal exam (no evidence of retinopathy) in the 12 months prior to the measurement period

100%120 patients5/55-star benchmark: 100%

Pneumococcal Vaccination Status for Older Adults

Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine

87%330 patients4/55-star benchmark: 90%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

STEPHANIE LYNN SHOREY WHNP-BC

Nurse Practitioner (Women's Health)

621 S NEW BALLAS RD, SUITE 2007B
SAINT LOUIS, MO 63141

St. Louis County (314) 991-5000

DR. KATHRYN BOTNEY M.D.

Obstetrics & Gynecology

621 S NEW BALLAS RD, SUITE 4005
SAINT LOUIS, MO 63141

St. Louis County (314) 567-5016

HUILIN LI M.D.

Internal Medicine

621 S NEW BALLAS RD, SUITE 3016B
SAINT LOUIS, MO 63141

St. Louis County (314) 251-6339

LUIS A GIUFFRA LLC

Psychiatry & Neurology (Psychiatry)

621 S NEW BALLAS RD, SUITE 398A
SAINT LOUIS, MO 63141

St. Louis County (314) 251-7720

JOSEPH G HERRMANN MD LLC

Specialist

621 S NEW BALLAS RD, SUITE 419A
SAINT LOUIS, MO 63141

St. Louis County (314) 432-0056

KAREN KILO RN, CDE, RD

Nutritionist (Nutrition, Education)

621 S NEW BALLAS RD, SUITE 460A
SAINT LOUIS, MO 63141

St. Louis County (314) 251-4330

KATINA M CANDEE PA-C

Physician Assistant

621 S NEW BALLAS RD, SUITE 483A
SAINT LOUIS, MO 63141

St. Louis County (314) 251-2095

MUDDASANI BABITHA REDDY DO

Internal Medicine (Gastroenterology)

621 S NEW BALLAS RD, SUITE 437 A
SAINT LOUIS, MO 63141

St. Louis County (314) 251-3881

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 Peter Yoon's NPI number?

The NPI number for Peter Yoon is 1013917715. It was assigned to this individual provider in the NPPES registry on July 26, 2005. The provider is also known as Dr. Kong-Woo Peter Yoon M.D..

Where is Peter Yoon located?

Peter Yoon practices at 621 S New Ballas Rd Ste 297A, Saint Louis, MO 63141. The listed phone number is (314) 251-6364.

What is Peter Yoon's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Peter Yoon enrolled in Medicare?

Yes. Peter Yoon is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Peter Yoon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Yoon reassigns Medicare benefits to Mercy Hospitals East Communities (Saint Louis, MO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Peter Yoon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Peter Yoon was last updated on June 28, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.