Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. James W McIlwaine, MD

Individual provider Otolaryngology Physician · NPI 1558352443

Dr. James W McIlwaine, MD is an Otolaryngology in Washington, Missouri. Graduated from University of Missouri, Columbia School of Medicine in 2000, 26 years ago. Practices with Mercy Clinic ENT LLC, a 12-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
26
Trained at
University of Missouri, Columbia School of Medicine
Licensed in
MO
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

901 Patients First Dr
Washington, MO 63090-4700
Phone: (636) 390-1570
Fax: (636) 390-1571
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 2002002082 (MO)

Record details

NPI number1558352443
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 31, 2005
Last updated in NPPESJanuary 23, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOTOLARYNGOLOGY
Medical schoolUNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice Mercy Clinic Ent Llc — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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