JUSTIN A. PIEPER MD
NPI 1528597846
Internal Medicine - Clinical Cardiac Electrophysiology in Saint Louis, MO

Q: What is Justin Pieper's NPI number?

The NPI number for Justin Pieper is 1528597846. It was assigned to this individual provider in the NPPES registry on June 8, 2017.

Q: What is Justin Pieper's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.

Q: When was this NPI record last updated?

The NPPES record for Justin Pieper was last updated on August 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since June 08, 2017PECOS EnrolledAccepts Medicare Assignment

625 S NEW BALLAS RD STE 2015, SAINT LOUIS, MO 63141(314) 251-1700 Get Directions Write a Review

NPPES record last updated: August 25, 2025. Verified against the NPPES registry weekly; last sync: October 04, 2026.

On this page

About Justin A. Pieper Md NPPES

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

JUSTIN A. PIEPER MD (NPI 1528597846) is an individual clinical cardiac electrophysiology provider in Saint Louis, Missouri, licensed in Missouri (2025031646) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1528597846

Entity TypeIndividualMale

Primary Taxonomy207RC0001X

Provider Legal NameJUSTIN A. PIEPERCredential: MD

Location Address625 S NEW BALLAS RD STE 2015Saint Louis, MO 63141-8253

Mailing Address625 S New Ballas Rd Ste 2015Saint Louis, MO 63141-8253 · (314) 251-1700

Phone(314) 251-1700

Sole ProprietorNo

Medical School CMSOtherGraduated 2017

Enumeration DateJune 8, 2017

Last NPPES UpdateAugust 25, 2025

NPPES CertifiedAugust 25, 2025

✔ NPI 1528597846 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Clinical Cardiac ElectrophysiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RC0001X

License✔ Licensed in MO · 2025031646

Definition

A field of special interest within the subspecialty of cardiovascular disease, specialty of Internal Medicine, which involves intricate technical procedures to evaluate heart rhythms and determine appropriate treatment for them.

625 S NEW BALLAS RD STE 2015, Saint Louis, MO 63141

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Secondary Practice Locations 2

Location 1625 S New Ballas Rd Ste 2030Saint Louis, MO 63141-8253 · Phone (314) 251-1700

Location 21000 E Cherry St Fl 3Troy, MO 63379-1513 · Phone (314) 251-1700

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

Justin A. Pieper Md 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 ID2365711553

PECOS Enrollment IDI20250903004256

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 2

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

Mercy Hospital South

Acute Care Hospitals · Saint Louis, MO

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260077

Location10010 Kennerly RoadSaint Louis, MO 63128 · St. Louis County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63141 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 16

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

LAUREN ELIZABETH HUFF FNP

Nurse Practitioner (Family)