Active NPI
Ladue Internal Medicine, LLC
- Internal Medicine Physician
- Saint Louis, MO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- Legal business name
- LADUE INTERNAL MEDICINE, LLC
- Practice address
- 8857B Ladue Rd
Saint Louis, MO 63124-2058 - Phone
- (314) 682-3626
- Fax
- (314) 590-5954
- NPI assigned
- Dec 11, 2014
- Organization subpart
- Yes
- Parent organization
- ST. LUKES MEDICAL GROUP
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Darren R. Haskell, MD.
- Title
- Chief Medical Officer
- Phone
- (314) 205-6444
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | Primary | ||
| Pediatrics Physician | 208000000X |
Addresses
Primary practice location
8857B Ladue Rd
Saint Louis, MO 63124-2058
Mailing address
8857 Ladue Rd Ste B
Saint Louis, MO 63124-2045
Phone (314) 682-3626
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MO
Enrollment records 1
Laboratory certificates & supplier records
Derived by NPIMapThese CMS records do not include an NPI. They are shown because their name and street address match this provider’s.
CLIA laboratory certificates
| CLIA number | Laboratory | Certificate | Expires |
|---|---|---|---|
| 26D2024636 | Ladue Internal Medicine | Certificate of waiver | May 19, 2027 |
National Provider Directory
National Provider Directory- Part of
- St Lukes Medical Group
Locations
8857B Ladue Rd
Saint Louis, MO 63124
Phone (314) 682-3626
8857 Ladue Rd
#A
Saint Louis, MO 63124
Phone (314) 576-8189
Ownership & related parties
Parent organization (reported in NPPES) 1
This organization reports itself as a subpart in NPPES; the parent’s legal name matches this organization in the same state.
-
- Family Medicine Physician
- Chesterfield, MO
- NPI 1215308945
Practitioners & affiliated clinicians
Practitioners 6
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.
-
- Internal Medicine Physician
- Saint Louis, MO
- NPI 1881636439
-
- Family Medicine Physician
- Saint Louis, MO
- NPI 1801994926
-
- Internal Medicine Physician
- Saint Louis, MO
- NPI 1932675170
-
- Adult Health Nurse Practitioner
- Saint Louis, MO
- NPI 1851381206
-
- Family Nurse Practitioner
- Chesterfield, MO
- NPI 1275257966
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1418256000000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1772668800000",
"number": "1689072324",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "8857 LADUE RD STE B",
"city": "SAINT LOUIS",
"state": "MO",
"postal_code": "631242045",
"telephone_number": "314-682-3626",
"fax_number": "314-590-5954"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "8857B LADUE RD",
"city": "SAINT LOUIS",
"state": "MO",
"postal_code": "631242058",
"telephone_number": "314-682-3626",
"fax_number": "314-590-5954"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "LADUE INTERNAL MEDICINE, LLC",
"organizational_subpart": "YES",
"parent_organization_legal_business_name": "ST. LUKES MEDICAL GROUP",
"enumeration_date": "2014-12-11",
"last_updated": "2026-03-05",
"certification_date": "2026-03-05",
"status": "A",
"authorized_official_last_name": "HASKELL",
"authorized_official_first_name": "DARREN",
"authorized_official_middle_name": "R.",
"authorized_official_title_or_position": "CHIEF MEDICAL OFFICER",
"authorized_official_telephone_number": "314-205-6444",
"authorized_official_credential": "MD."
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Internal Medicine",
"state": null,
"license": null,
"primary": true
},
{
"code": "208000000X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Pediatrics",
"state": null,
"license": null,
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Saint Louis, MO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 5, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.