Quick answers
- Where does Kenneth Portnoy see patients?
- Medicare's clinician data lists 2 practice locations, including Lake Zurich, IL and Wheeling, IL. Call before your visit to confirm the address.
- What is Kenneth Portnoy's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Kenneth Portnoy accept Medicare assignment?
- Medicare's clinician data says Kenneth Portnoy may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Kenneth Portnoy?
- (847) 540-7737, as listed in official Medicare / NPI Registry data.
- What is Kenneth Portnoy's NPI number?
- 1487645412. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Kenneth Portnoy is enrolled with Medicare (CMS data updated 2026-10-02).
- 664 S Rand RdLake Zurich, IL 60047 (847) 540‑7737
- 727 W Dundee RdWheeling, IL 60090 (847) 459‑4477
Group practices
Medicare enrollment lists Kenneth Portnoy as a member of these groups (CMS data updated 2026-10-02).
- Wheeling Optical Care LLC4 clinicians in the group
- Lake Zurich Optical Care LLC3 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Lake Zurich
Clinicians with the same Medicare primary specialty in Lake Zurich, IL — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | Illinois College Of Optometry At Chicago |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1487645412 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians