Timothy Corgan, O.D.
NPI 1790731743 · Optometrist · Marinette, WI
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Corgan, O.D. is a Optometrist provider in Marinette, WI (NPI 1790731743).
Provider details
- NPI number
- 1790731743
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 2655-035 (WI)
Specialties & taxonomies
Eye and Vision Services Providers
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,786 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 1,622 | $1 |
| Removal of Recurring Cataract in Lens Capsule Using a Laser66821 | 1,620 | $1 |
| Established Patient Complete Exam of Visual System92014 | 179 | $111 |
| Imaging of Optic Nerve92133 | 68 | $33 |
| Photography of the Retina92250 | 66 | $34 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 66 | $120 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 241 | 70 |
| Timolol Maleate | 130 | 48 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 41 | — |
| Fluorometholone | 21 | 16 |
| Brimonidine Tartrate/Timololbrand: Combigan | 20 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 17 | — |
| Dorzolamide Hcl | 17 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-25
- Last updated
- 2023-03-07
Frequently asked questions
- What is Timothy Corgan's NPI number?
- Timothy Corgan's National Provider Identifier (NPI) is 1790731743, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Corgan's specialty?
- Timothy Corgan is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Timothy Corgan located?
- Timothy Corgan's practice location on file with NPPES is 1400 University Dr, Marinette, WI 54143-5105.
- What is Timothy Corgan's phone number?
- The practice phone number listed in the NPPES registry for Timothy Corgan is (715) 732-4181.
- Does Timothy Corgan accept Medicare?
- Timothy Corgan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Corgan's NPI active?
- Yes — Timothy Corgan's NPI (1790731743) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.