Cathy C. Alexander, OD
Optometrist · Rockford, IL
Cathy C. Alexander, OD is an optometrist with a practice address in Rockford, Illinois, and NPI 1134289754, issued on Dec 12, 2006. Check the license (Illinois 046009137, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cathy C. Alexander
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 046009137 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2300 N Rockton Ave, Rockford, IL 61103
- Phone
- (815) 971-2000
- Enumerated
- Dec 12, 2006
- Record last updated
- Jan 26, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 46009137 IL
- Medicare enrollment
- Enrolled (PECOS I20050121000622); accepts Medicare assignment
- Medical or professional school
- Pennsylvania College Of Optometry, 1997
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,697 in Illinois → Look up another NPI →
Also registered at 2300 N Rockton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Walid Abdallah, MDOphthalmology Physician1871912717
- Neelum Ahmed, MDFamily Medicine Physician1346448867
- John Alexander, ODOptometrist1669532289
- Samuel Appavu, M.D.Surgery Physician1346243169
- Jessica Barr, APRN,BCFamily Nurse Practitioner1124181664
- Cynthia Bear, PASurgical Physician Assistant1548266620
Verify Cathy C. Alexander in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 046009137Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average optometrist in 2024
698 Medicare Part D claims for 171 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Latanoprost201 claims
- Timolol Maleate78 claims
- Brimonidine Tartrate46 claims
- Dorzolamide-Timolol42 claims
- Prednisolone Acetate39 claims
- Travoprost39 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Rockford Health PhysiciansRockford, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cathy C. Alexander among 2,697 optometrist records in Illinois
Cathy C. Alexander, OD is one of 2,697 optometrist records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 63% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1997 · median 2008 among the 1,513 with a school on file
- Record last updated2010 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
54 optometrist records list a practice address in Rockford
They are 54 of the 3,893 NPPES records with a practice address in Rockford, and 2,697 optometrist records in Illinois.
All 2,697 in Illinois → Every provider in Rockford → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- John Alexander, ODRockford, IL 611031669532289
- Gary Koteles, ODRockford, IL 611031932269552
- Amie Gandhi, ODRockford, IL 611021780317453
- Constance Copeland, OD, PHDRockford, IL 611071508857202
- Paul Hahn, ODRockford, IL 611071649260449
- William Hillmann, ODRockford, IL 611071629039789
- Jaime King, O.D.Rockford, IL 611071225131428
- Young Hee LeeRockford, IL 611071851846422
Common questions
What is Cathy C. Alexander, OD's NPI number?
Cathy C. Alexander, OD's National Provider Identifier (NPI) is 1134289754, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cathy C. Alexander, OD located?
The NPPES record lists a practice address at 2300 N Rockton Ave, Rockford, IL, 61103. Phone: (815) 971-2000. Providers update this record themselves, so call before visiting.
How can I verify Cathy C. Alexander, OD's license?
NPPES lists Illinois license number 046009137, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Cathy C. Alexander, OD prescribe under Medicare Part D?
In 2024, Cathy C. Alexander, OD had 698 Medicare Part D claims for 171 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.