SLMG LONG TERM GROUP LLC
NPI 1265042535
Clinic/Center in Chesterfield, MO

Q: What is Slmg Long Term Group LLC's NPI number?

The NPI number for Slmg Long Term Group LLC is 1265042535. It was assigned to this organization in the NPPES registry on August 3, 2020.

Q: What is Slmg Long Term Group LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center with taxonomy code 261Q00000X.

Active since August 03, 2020

224 S WOODS MILL RD STE 570, CHESTERFIELD, MO 63017(314) 205-6898(314) 590-5911 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, Oct 21, 2020 and 2 more (5 updates tracked since 2020).

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About Slmg Long Term Group Llc NPPES

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

SLMG LONG TERM GROUP LLC (NPI 1265042535) is a healthcare organization registered as a clinic/center in Chesterfield, Missouri and active in the NPI registry since August 2020. The organization lists Darren R. Haskell, Chief Medical Officer, as its authorized official.

NPPES Registry Identity

NPI1265042535

Entity TypeOrganization

Primary Taxonomy261Q00000X

Legal Business NameSLMG LONG TERM GROUP LLC

Location Address224 S WOODS MILL RD STE 570Chesterfield, MO 63017-3513

Mailing Address232 S Woods Mill RdChesterfield, MO 63017-3406 · (636) 685-7804 · Fax (314) 576-2344

Phone(314) 205-6898

Fax(314) 590-5911

Organization SubpartYesParent: St. Lukes Medical Group

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

Enumeration DateAugust 3, 2020

Last NPPES UpdateMarch 5, 20265 updates tracked since enumeration

NPPES CertifiedMarch 5, 2026

✔ NPI 1265042535 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/CenterAmbulatory Health Care Facilities

Taxonomy Code261Q00000X

Definition

A facility or distinct part of one used for the diagnosis and treatment of outpatients. Clinic/Center is irregularly defined, sometimes being limited to organizations serving specialized treatment requirements or distinct patient/client groups (e.g., radiology, poor, and public health).

224 S WOODS MILL RD STE 570, Chesterfield, MO 63017

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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)

Slmg Long Term Group Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Slmg Long Term Group LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Sabiha Siddiqui, M.D.

Family Practice

NPI 1386669760

224 S WOODS MILL RD STE 570
Chesterfield, MO 63017

(314) 205-6898

✔ PECOS✔ Accepts Medicare0.7 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 Slmg Long Term Group LLC's NPI number?

The NPI number for Slmg Long Term Group LLC is 1265042535. It was assigned to this organization in the NPPES registry on August 3, 2020.

Where is Slmg Long Term Group LLC located?

Slmg Long Term Group LLC is located at 224 S Woods Mill Rd Ste 570, Chesterfield, MO 63017. The listed phone number is (314) 205-6898.

What is Slmg Long Term Group LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center with taxonomy code 261Q00000X.

Is Slmg Long Term Group LLC enrolled in Medicare?

Yes. Slmg Long Term Group LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Slmg Long Term Group LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Slmg Long Term Group 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Slmg Long Term Group 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 2 other insurers list Slmg Long Term Group 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 Slmg Long Term Group 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.