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

John A. Alexander, OD

Individual provider Optometrist · NPI 1669532289

John A. Alexander, OD is an Optometry in Rockford, Illinois. Graduated from Illinois College of Optometry at Chicago in 1999, 27 years ago. Practices with Rockford Health Physicians, a 521-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
27
Trained at
Illinois College of Optometry at Chicago
Licensed in
IL
In the registry since
2006
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

2300 N Rockton Ave
Rockford, IL 61103-3619
Phone: (815) 971-2000
Show map & directions

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

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 046009167 (IL)

Record details

NPI number1669532289
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedDecember 12, 2006
Last updated in NPPESJanuary 26, 2010
Mailing address2300 N Rockton Ave, Rockford, IL 61103-3619

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Graduated 1999 (27 years in practice)
Group practice Rockford Health Physicians — 521 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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