Lin Chen, MD, PHD
NPI 1841394921 · Ophthalmology Physician · Kenosha, WI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lin Chen, MD, PHD is a Ophthalmology Physician provider in Kenosha, WI (NPI 1841394921).
Provider details
- NPI number
- 1841394921
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 45826 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
724 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 140 | $115 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 70 | $155 |
| Imaging of Retina92134 | 61 | $37 |
| Imaging of Optic Nerve92133 | 60 | $32 |
| Exam of Visual Field With Extended Testing92083 | 55 | $59 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 53 | $35 |
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 | 140 | 57 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 68 | 56 |
| Ketorolac Tromethamine | 64 | 40 |
| Prednisolone Acetate | 48 | 41 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 46 | 22 |
| Brimonidine Tartrate | 25 | 12 |
| Dorzolamide Hcl | 22 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-11
- Last updated
- 2023-08-16
- Certified
- 2023-08-16
Frequently asked questions
- What is Lin Chen's NPI number?
- Lin Chen's National Provider Identifier (NPI) is 1841394921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lin Chen's specialty?
- Lin Chen is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Lin Chen located?
- Lin Chen's practice location on file with NPPES is 6815 118th Ave, Kenosha, WI 53142-8420.
- What is Lin Chen's phone number?
- The practice phone number listed in the NPPES registry for Lin Chen is (262) 857-5600.
- Does Lin Chen accept Medicare?
- Lin Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lin Chen's NPI active?
- Yes — Lin Chen's NPI (1841394921) is active in the NPPES registry as of the last update on 2023-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.