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

Dr. William C Hillmann, OD

Individual provider Optometrist · NPI 1629039789

Dr. William C Hillmann, OD is an Optometrist in Rockford, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2006
Specialties on file
2
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

1603 N Alpine Rd Ste 121
Rockford, IL 61107-1439
Phone: (815) 209-9420
Fax: (815) 425-5244
Show map & directions

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

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 046-009168 (IL)
Corneal and Contact Management Optometrist Taxonomy 152WC0802X · Licence 046009168 (IL)

Record details

NPI number1629039789
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorYes
NPI enumeratedMarch 29, 2006
Last updated in NPPESAugust 11, 2021
Certification dateAugust 11, 2021
Mailing address1603 N Alpine Rd, Ste 121, Rockford, IL 61107-1439

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