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

Dr. Keith Reynolds Warren, MD

Individual provider Internal Medicine Physician · NPI 1164493854

Dr. Keith Reynolds Warren, MD is an Internal Medicine Physician in Winfield, Illinois. Licensed in Illinois, New Hampshire and Vermont. Registered with an NPI since 2006.

Licensed in
IL, NH, VT
In the registry since
2006
Specialties on file
4
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

25 N Winfield Rd
Winfield, IL 60007-3361
Phone: (630) 690-4993
Fax: (630) 690-2293
Show map & directions

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

Specialties & licences

Sleep Medicine (Internal Medicine) Physician (primary) Taxonomy 207RS0012X · Licence 036125979 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 42-0010962 (VT)
Psychiatry Physician Taxonomy 2084P0800X · Licence 13059 (NH)
Psychiatry Physician Taxonomy 2084P0800X · Licence 036125979 (IL)

Record details

NPI number1164493854
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 30, 2006
Last updated in NPPESApril 15, 2015

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