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WEST COUNTY ADULT MEDICINE, LLC
NPI 1497943393
Internal Medicine in Chesterfield, MO

Active since October 05, 2007
224 S WOODS MILL RD STE 510S, CHESTERFIELD, MO 63017(314) 205-6605(314) 590-5928 Get Directions Write a Review

NPPES record last updated: March 5, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 5, 2026, Dec 12, 2025, Apr 26, 2021 and 1 more (4 updates tracked since 2017).

About West County Adult Medicine, Llc NPPES

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

WEST COUNTY ADULT MEDICINE, LLC (NPI 1497943393) is a healthcare organization registered as an internal medicine in Chesterfield, Missouri and active in the NPI registry since October 2007. The organization lists Darren R. Haskell, Chief Medical Officer, as its authorized official.

NPPES Registry Identity

NPI1497943393
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameWEST COUNTY ADULT MEDICINE, LLC
Location Address224 S WOODS MILL RD STE 510SChesterfield, MO 63017-3611
Mailing Address232 S Woods Mill RdChesterfield, MO 63017-3406 · (636) 685-7804 · Fax (314) 576-2344
Phone(314) 205-6605
Fax(314) 590-5928
Organization SubpartYesParent: St. Lukes Medical Group
Authorized OfficialDarren R. HaskellChief Medical Officer · (314) 205-6444
Enumeration DateOctober 5, 2007
Last NPPES UpdateMarch 5, 20264 updates tracked since enumeration
NPPES CertifiedMarch 5, 2026
✔ NPI 1497943393 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X
224 S WOODS MILL RD STE 510S, Chesterfield, MO 63017
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

West County Adult Medicine, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to West County Adult Medicine, LLC, which bills Medicare for the services they deliver. Of these, 3 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (3)

Sarah Beckmann
Nurse Practitioner
NPI 1275257966
224 S WOODS MILL RD STE 510
Chesterfield, MO 63017
(314) 205-6605
✔ PECOS✔ Accepts Medicare0.7 mi
Joseph Fritz, M.D.
Internal Medicine
NPI 1619097763
224 S WOODS MILL RD STE 620
Chesterfield, MO 63017
(314) 205-6605
✔ PECOS✔ Accepts Medicare0.7 mi
David Mccrary, M.D.
Internal Medicine
NPI 1821034745
224 S WOODS MILL RD STE 510S
Chesterfield, MO 63017
(314) 205-6605
✔ 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 West County Adult Medicine, LLC's NPI number?

The NPI number for West County Adult Medicine, LLC is 1497943393. It was assigned to this organization in the NPPES registry on October 5, 2007.

Where is West County Adult Medicine, LLC located?

West County Adult Medicine, LLC is located at 224 S Woods Mill Rd Ste 510S, Chesterfield, MO 63017. The listed phone number is (314) 205-6605.

What is West County Adult Medicine, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is West County Adult Medicine, LLC enrolled in Medicare?

Yes. West County Adult Medicine, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through West County Adult Medicine, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to West County Adult Medicine, LLC, in Internal Medicine and Nurse Practitioner. 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. Of these, 3 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does West County Adult Medicine, 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 West County Adult Medicine, 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 West County Adult Medicine, 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.