ST. LOUIS ELECTROPHYSIOLOGY SPECIALISTS, LLC
NPI 1629439187
Internal Medicine - Clinical Cardiac Electrophysiology in Chesterfield, MO

Q: What is St. Louis Electrophysiology Specialists, LLC's specialty?

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

Active since March 11, 2016

121 SAINT LUKES CENTER DR STE 501, CHESTERFIELD, MO 63017(636) 685-7738(314) 590-5927 Get Directions Write a Review

NPPES record last updated: March 5, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 5, 2026, Dec 12, 2025, May 5, 2022 and 3 more (6 updates tracked since 2020).

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About St. Louis Electrophysiology Specialists, Llc NPPES

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

ST. LOUIS ELECTROPHYSIOLOGY SPECIALISTS, LLC (NPI 1629439187) is a healthcare organization registered as a clinical cardiac electrophysiology in Chesterfield, Missouri and active in the NPI registry since March 2016. The organization lists Darren R. Haskell, Chief Medical Officer, as its authorized official.

NPPES Registry Identity

NPI1629439187

Entity TypeOrganization

Primary Taxonomy207RC0001X

Legal Business NameST. LOUIS ELECTROPHYSIOLOGY SPECIALISTS, LLC

Location Address121 SAINT LUKES CENTER DR STE 501Chesterfield, MO 63017-3519

Mailing Address121 Saint Lukes Center Dr Ste 501Chesterfield, MO 63017-3519 · (636) 685-7738 · Fax (314) 590-5927

Phone(636) 685-7738

Fax(314) 590-5927

Organization SubpartYesParent: St. Lukes Medical Group

Authorized OfficialDarren R. HaskellChief Medical Officer · (314) 205-6444

Enumeration DateMarch 11, 2016

Last NPPES UpdateMarch 5, 20266 updates tracked since enumeration

NPPES CertifiedMarch 5, 2026

✔ NPI 1629439187 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Clinical Cardiac ElectrophysiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RC0001X

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.

121 SAINT LUKES CENTER DR STE 501, Chesterfield, MO 63017

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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 Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

St. Louis Electrophysiology Specialists, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 6 clinicians reassign Medicare billing to St. Louis Electrophysiology Specialists, LLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (6)

Jonas Cooper, MD

Cardiac Electrophysiology

NPI 1154499499

121 SAINT LUKES CENTER DR STE 404
Chesterfield, MO 63017

(636) 685-7738

✔ PECOS✔ Accepts MedicareSame address

Amanda Hopen

Nurse Practitioner

NPI 1780541144

121 SAINT LUKES CENTER DR STE 501
Chesterfield, MO 63017

(636) 685-7738

✔ PECOS✔ Accepts MedicareSame address

Heather Uelhof

Nurse Practitioner

NPI 1881296788

1260 OLD STONE DR
O Fallon, MO 63368

(619) 251-3543

✔ PECOS✔ Accepts Medicare11 mi

Michael Shapiro, M.D.

Cardiac Electrophysiology

NPI 1306845326

10012 KENNERLY RD SUITE 202
Saint Louis, MO 63128

(314) 692-2807

✔ PECOS✔ Accepts Medicare12 mi

Tracy Novak, ACNP

Nurse Practitioner

NPI 1295335966

1 BARNES JEWISH HOSPITAL PLZ DIV IM NEPHROLOGY
Saint Louis, MO 63110

(314) 362-7603

✔ PECOS✔ Accepts Medicare13 mi

Andrew Berdy, MD

Cardiovascular Disease (Cardiology)

NPI 1821425067

4600 MEMORIAL DR STE W1
Belleville, IL 62226

(618) 233-3066

✔ PECOS✔ Accepts Medicare27 mi

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

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 St. Louis Electrophysiology Specialists, LLC's NPI number?

The NPI number for St. Louis Electrophysiology Specialists, LLC is 1629439187. It was assigned to this organization in the NPPES registry on March 11, 2016.

Where is St. Louis Electrophysiology Specialists, LLC located?

St. Louis Electrophysiology Specialists, LLC is located at 121 Saint Lukes Center Dr Ste 501, Chesterfield, MO 63017. The listed phone number is (636) 685-7738.

What is St. Louis Electrophysiology Specialists, LLC's specialty?

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

Is St. Louis Electrophysiology Specialists, LLC enrolled in Medicare?

Yes. St. Louis Electrophysiology Specialists, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through St. Louis Electrophysiology Specialists, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 3 Medicare specialties reassign their Medicare billing to St. Louis Electrophysiology Specialists, LLC. A 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 the clinician's services. The largest specialties are Nurse Practitioner (3), Cardiac Electrophysiology (2) and Cardiovascular Disease (Cardiology) (1). Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does St. Louis Electrophysiology Specialists, LLC accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list St. Louis Electrophysiology Specialists, LLC 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.

When was this NPI record last updated?

The NPPES record for St. Louis Electrophysiology Specialists, LLC was last updated on March 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.