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

Dr. William Douglas Havlik, DMD

Individual provider Dentist · NPI 1235241001

Dr. William Douglas Havlik, DMD is a Dentist in Sullivan, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
What do these letters mean?
DMD — Doctor of Dental Medicine
A dentist. Identical training and licensing to a DDS.

See every abbreviation used in this directory →

Practice location Address checks out

2 W Adams
Sullivan, IL 61951-1943
Phone: (217) 728-8711
Fax: (217) 728-2580
Show map & directions

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

Specialties & licences

Dentist (primary) Taxonomy 122300000X (IL)

Record details

NPI number1235241001
Entity typeIndividual (Type 1)
GenderMale
Credentials DMD
Sole proprietorNo
NPI enumeratedAugust 31, 2006
Last updated in NPPESJuly 8, 2007

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