INTERNAL MEDICINE OF ST. LUKE'S, LLC
NPI 1316189194
Internal Medicine in Chesterfield, MO
About Internal Medicine Of St. Luke's, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
INTERNAL MEDICINE OF ST. LUKE'S, LLC (NPI 1316189194) is a healthcare organization registered as an internal medicine in Chesterfield, Missouri and active in the NPI registry since March 2009. The organization holds a CLIA Waiver certificate valid through January 21, 2028, maintains a secondary practice location in Chesterfield, and lists Darren R. Haskell, Chief Medical Officer, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Group Practice 1
Accepted 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)
Internal Medicine Of St. Luke's, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
17Medicare enrollment records show 17 clinicians reassign Medicare billing to Internal Medicine Of St. Luke's, LLC, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 9 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 2
Clinicians, nearest first (17)
Chesterfield, MO 63017
Chesterfield, MO 63017
Chesterfield, MO 63017
Chesterfield, MO 63017
Saint Louis, MO 63110
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 26D2002666
Internal Medicine Of St Luke's LLC · Chesterfield, MOFrequently 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 Internal Medicine Of St. Luke's, LLC's NPI number?
The NPI number for Internal Medicine Of St. Luke's, LLC is 1316189194. It was assigned to this organization in the NPPES registry on March 25, 2009.
Where is Internal Medicine Of St. Luke's, LLC located?
Internal Medicine Of St. Luke's, LLC is located at 121 Saint Lukes Center Dr Ste 504, Chesterfield, MO 63017. The listed phone number is (314) 205-6399.
What is Internal Medicine Of St. Luke's, LLC's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Internal Medicine Of St. Luke's, LLC enrolled in Medicare?
Yes. Internal Medicine Of St. Luke's, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Internal Medicine Of St. Luke's, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 17 clinicians in 2 Medicare specialties reassign their Medicare billing to Internal Medicine 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 Nurse Practitioner (13) and Internal Medicine (4). Of these, 4 practice at this address and 9 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Internal Medicine Of St. Luke's, LLC hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 26D2002666) is associated with this NPI, valid through January 21, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Internal Medicine 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 3 other insurers list Internal Medicine 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 Internal Medicine 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 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.
# Internal Medicine Of St. Luke's, Llc · NPI 1316189194
Internal Medicine organization in Chesterfield, Missouri. Organization record, active in the CMS NPPES registry since March 25, 2009.
## Identity
- **NPI:** 1316189194 (Entity type: Organization)
- **Enumerated:** March 25, 2009
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** Yes (part of St. Lukes Medical Group)
- **Authorized official:** Darren Haskell, CHIEF MEDICAL OFFICER
## Practice location
- **Address:** 121 SAINT LUKES CENTER DR STE 504, Chesterfield, MO 63017-3519
- **Phone:** (314) 205-6399 · **Fax:** (314) 590-5909
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 17 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (13), Internal Medicine (4); 4 practice at this address and 9 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 5, 2026
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1316189194) · Data from the CMS NPPES public registry.