Quick answers
- Does Holly R. Weis accept Medicare assignment?
- Yes. Medicare's clinician data says Holly R. Weis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Holly R. Weis see?
- In 2024, CMS data shows 1,089 Original Medicare patients and 3,496 services for Holly R. Weis. This counts Original Medicare only and measures volume, not quality.
- What is Holly R. Weis's NPI number?
- 1568751352. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Holly R. Weis, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,089 |
|---|---|
| Services billed to Medicare | 3,496 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Microfluid analysis of tears (83861)966 services
- Established patient complete exam of visual system (92014)902 services
- Established patient problem focused exam of visual system (92012)577 services
- Imaging of retina (92134)474 services
- Imaging of optic nerve (92133)205 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure66%
- Arthritis49%
- Osteoporosis28%
- Ischemic heart disease23%
- Diabetes22%
Hospitals where Holly R. Weis works
Medicare's Facility Affiliation Data lists Holly R. Weis at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Northshore University Healthsystem - Evanston HospitalEvanston, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140010
Practice locations
Addresses where Holly R. Weis is enrolled with Medicare (CMS data updated October 2, 2026).
- 2640 Patriot Blvd, Suite 100Glenview, IL 60026 (847) 510‑6000
Group practices
Medicare enrollment lists Holly R. Weis as a member of this group (CMS data updated October 2, 2026).
- Chicago Glaucoma Consultants Ltd4 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Glenview
Clinicians with the same Medicare primary specialty in Glenview, IL — not a recommendation.
Other clinicians in Chicago Glaucoma Consultants Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rush Medical College Of Rush University |
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568751352 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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