OBSTETRICAL ASSOCIATES OF ST. LUKE'S, LLC
NPI 1447814181
Obstetrics & Gynecology in Chesterfield, MO

Q: What is Obstetrical Associates Of St. Luke's, LLC's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Active since April 29, 2019

224 S WOODS MILL RD STE 750S, CHESTERFIELD, MO 63017(314) 576-9797(314) 469-7517 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, Nov 2, 2020 and 2 more (5 updates tracked since 2019).

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About Obstetrical Associates Of St. Luke's, Llc NPPES

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

OBSTETRICAL ASSOCIATES OF ST. LUKE'S, LLC (NPI 1447814181) is a healthcare organization registered as an obstetrics & gynecology in Chesterfield, Missouri and active in the NPI registry since April 2019. The organization maintains 3 additional practice locations and lists Darren R. Haskell, Chief Medical Officer, as its authorized official.

NPPES Registry Identity

NPI1447814181

Entity TypeOrganization

Primary Taxonomy207V00000X

Legal Business NameOBSTETRICAL ASSOCIATES OF ST. LUKE'S, LLC

Location Address224 S WOODS MILL RD STE 750SChesterfield, MO 63017-3623

Mailing Address232 S Woods Mill RdChesterfield, MO 63017-3406 · (314) 576-2490

Phone(314) 576-9797

Fax(314) 469-7517

Organization SubpartYesParent: St. Lukes Medical Group

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

Enumeration DateApril 29, 2019

Last NPPES UpdateMarch 5, 20265 updates tracked since enumeration

NPPES CertifiedMarch 5, 2026

✔ NPI 1447814181 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

224 S WOODS MILL RD STE 750S, Chesterfield, MO 63017

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Secondary Practice Locations 3

Location 1226 S Woods Mill Rd Ste 55WChesterfield, MO 63017-3664 · Phone (314) 576-9797 · Fax (314) 590-5968

Location 2103 Hilltop Village Shopping CenterEureka, MO 63025 · Phone (314) 576-9797 · Fax (314) 469-7517

Location 35551 Winghaven Blvd Ste 170O Fallon, MO 63368-3630 · Phone (314) 576-9797 · Fax (314) 469-7517

Other Identifiers 1

Medicaid500072353MO

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)

Obstetrical Associates Of St. Luke's, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 9 clinicians reassign Medicare billing to Obstetrical Associates Of St. Luke's, LLC, which bills Medicare for the services they deliver. Of these, 5 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (9)

Jeffrey Thompson, M.D.

Obstetrics/Gynecology

NPI 1346337219

224 S WOODS MILL RD STE 750
Chesterfield, MO 63017

(314) 576-9797

✔ PECOS✔ Accepts Medicare0.7 mi

Daniel Wagner, M.D.

Obstetrics/Gynecology

NPI 1891880191

224 S WOODS MILL RD SUITE 750
Chesterfield, MO 63017

(314) 576-9797

✔ PECOS✔ Accepts Medicare0.7 mi

Erica Rudloff, WHNP

Nurse Practitioner

NPI 1194280388

11630 STUDT AVE
Saint Louis, MO 63141

(314) 991-2229

✔ PECOS✔ Accepts Medicare3.6 mi

Kent Branson, M.D.

Obstetrics/Gynecology

NPI 1427149038

11630 STUDT AVE
Creve Coeur, MO 63141

(314) 991-2229

✔ PECOS✔ Accepts Medicare3.6 mi

Heather Siebers, RNC WHNP

Nurse Practitioner

NPI 1528274594

16216 BAXTER RD SUITE 100
Chesterfield, MO 63017

(636) 449-4700

✔ PECOS✔ Accepts Medicare3.7 mi

Matthew Bialko, M.D., M.P.H.

Obstetrics/Gynecology

NPI 1124551403

6420 CLAYTON RD
Saint Louis, MO 63117

(314) 781-4772

✔ PECOS✔ Accepts Medicare10 mi

Jill Flores, WHNP-BC

Nurse Practitioner

NPI 1942747910

1000 EDGEWATER POINT #200
Lake St. Louis, MO 63367

(636) 561-8088

✔ PECOS✔ Accepts Medicare17 mi

Julie Abeln, WHNP

Nurse Practitioner

NPI 1932416187

4600 MEMORIAL DR SUITE 400
Belleville, IL 62226

(618) 234-2390

✔ PECOS✔ Accepts Medicare27 mi

Molly Magrath, MD

Obstetrics/Gynecology

NPI 1457093858

1520 N SENATE AVE
Indianapolis, IN 46202

(317) 963-4634

✔ PECOS246 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 Obstetrical Associates Of St. Luke's, LLC's NPI number?

The NPI number for Obstetrical Associates Of St. Luke's, LLC is 1447814181. It was assigned to this organization in the NPPES registry on April 29, 2019.

Where is Obstetrical Associates Of St. Luke's, LLC located?

Obstetrical Associates Of St. Luke's, LLC is located at 224 S Woods Mill Rd Ste 750S, Chesterfield, MO 63017. The listed phone number is (314) 576-9797.

What is Obstetrical Associates Of St. Luke's, LLC's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Obstetrical Associates Of St. Luke's, LLC enrolled in Medicare?

Yes. Obstetrical Associates Of St. Luke's, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Obstetrical Associates Of St. Luke's, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 9 clinicians in 2 Medicare specialties reassign their Medicare billing to Obstetrical Associates Of St. Luke's, 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 Obstetrics/Gynecology (5) and Nurse Practitioner (4). Of these, 5 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Obstetrical Associates Of St. Luke's, 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 4 other insurers list Obstetrical Associates Of St. Luke's, 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 Obstetrical Associates Of St. Luke's, 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 8 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.