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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM W BENEDICT M.D.
NPI 1902845076
Internal Medicine in Chesterfield, MO

Active since June 05, 2006
226 S WOODS MILL RD, SUITE 56W, CHESTERFIELD, MO 63017(314) 373-2501(314) 373-2508 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About William W Benedict M.d. NPPES

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

WILLIAM W BENEDICT M.D. (NPI 1902845076) is an individual internal medicine provider in Chesterfield, Missouri, licensed in Missouri (R6999) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1902845076
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAM W BENEDICTCredential: M.D.
Location Address226 S WOODS MILL RD, SUITE 56WChesterfield, MO 63017-3662
Mailing Address226 S Woods Mill Rd, Suite 56wChesterfield, MO 63017-3662 · (314) 373-2501 · Fax (314) 373-2508
Phone(314) 373-2501
Fax(314) 373-2508
Sole ProprietorNo
Enumeration DateJune 5, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1902845076 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · R6999
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.
226 S WOODS MILL RD, Chesterfield, MO 63017
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MORLEY & MAXSON, MDS, PC
Obstetrics & Gynecology
226 S WOODS MILL RD, 55W
CHESTERFIELD, MO 63017
St. Louis County (314) 469-0001
DR. KATHERINE L KOMENDOWSKI MD
Pediatrics
226 S WOODS MILL RD, STE 36W
CHESTERFIELD, MO 63017
St. Louis County (314) 453-9666
JOHN C. PERLMUTTER, INC.
Ophthalmology
226 S WOODS MILL RD, SUITE 51 WEST
CHESTERFIELD, MO 63017
St. Louis County (314) 434-0202
DAVID H CORT M.D.
Internal Medicine (Gastroenterology)
226 S WOODS MILL RD, SUITE 52 WEST
CHESTERFIELD, MO 63017
St. Louis County (314) 434-2399
WUCA - WOODSMILL LLC
Clinic/Center (Multi-Specialty)
226 S WOODS MILL RD, SUITE 36W
CHESTERFIELD, MO 63017
St. Louis County (314) 453-9666
DR. CAROLINE ANNE MORGAN M.D.
Obstetrics & Gynecology
226 S WOODS MILL RD, SUITE 68 WEST
CHESTERFIELD, MO 63017
St. Louis County (314) 576-0930
DR. CHRISTOPHER S. CRONIN M.D.
Surgery
226 S WOODS MILL RD, SUITE 49 W
CHESTERFIELD, MO 63017
St. Louis County (314) 434-1211
DR. STEPHEN C YIM MD
Obstetrics & Gynecology (Gynecology)
226 S WOODS MILL RD, SUITE 55 WEST
CHESTERFIELD, MO 63017
St. Louis County (314) 469-4440

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 William Benedict's NPI number?

The NPI number for William Benedict is 1902845076. It was assigned to this individual provider in the NPPES registry on June 5, 2006.

Where is William Benedict located?

William Benedict practices at 226 S Woods Mill Rd Suite 56W, Chesterfield, MO 63017. The listed phone number is (314) 373-2501.

What is William Benedict's specialty?

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

When was this NPI record last updated?

The NPPES record for William Benedict was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days 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.