NPPES file of Aug 9, 2026

Timothy J. Fahy, O.D.

Optometrist · Chicago, IL

Timothy J. Fahy, O.D. is an optometrist with a practice address in Chicago, Illinois, and NPI 1952423139, issued on Apr 6, 2007. Check the license (Illinois 046-007793, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952423139
Name
Timothy J. Fahy
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License numbers
046-007793 IL
046007793 IL
Self-reported in NPPES; status is on the state search
Practice location
5943 W Montrose Ave, Chicago, IL 60634
Phone
(773) 685-0363
Enumerated
Apr 6, 2007
Record last updated
Apr 30, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(773) 685-0944
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest optometrist records → All 2,697 in Illinois → Look up another NPI →

Also registered at 5943 W Montrose Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Robert Anselmo, R.PH.Pharmacotherapy Pharmacist1295788396

Verify Timothy J. Fahy in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 046-007793    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

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68% fewer Medicare Part D claims than the average optometrist in 2024

88 Medicare Part D claims for 25 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.

  1. Timothy Fahy88
  2. Specialty average277

Most prescribed

  1. Latanoprost29 claims
  2. Lumigan11 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.

Timothy J. Fahy among 2,697 optometrist records in Illinois

Timothy J. Fahy, O.D. 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 2007, is newer than 37% of them.

  • NPI issued2007 · 37% of these records are older, 48% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 56% of these records are
  • Record last updated2012 · 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).

Optometrist providers in Illinois

There are 2,697 optometrist records in Illinois.

All 2,697 in Illinois → Every provider in Chicago → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Mary Fazelian, O.D.Chicago, IL 606341801914007
  2. Sumaya Gen, ODChicago, IL 606341801679089
  3. Caroline Kaczowka, ODChicago, IL 606341669362935
  4. Donghyun Kim, ODChicago, IL 606341285281816
  5. Mateusz KozlowskiChicago, IL 606341316728413
  6. Kathleen Morley, DOCTOR OF OPTOMETRYChicago, IL 606341407086663
  7. Deepa Patel, O.D.Chicago, IL 606341356435507
  8. Mary Elaine Silvestre, ODChicago, IL 606341588799852

Common questions

What is Timothy J. Fahy, O.D.'s NPI number?

Timothy J. Fahy, O.D.'s National Provider Identifier (NPI) is 1952423139, issued on Apr 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Timothy J. Fahy, O.D. located?

The NPPES record lists a practice address at 5943 W Montrose Ave, Chicago, IL, 60634. Phone: (773) 685-0363. Providers update this record themselves, so call before visiting.

How can I verify Timothy J. Fahy, O.D.'s license?

NPPES lists Illinois license number 046-007793, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Timothy J. Fahy, O.D. prescribe under Medicare Part D?

In 2024, Timothy J. Fahy, O.D. had 88 Medicare Part D claims for 25 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.