Quick answers
- Does Joshua B. Herz accept Medicare assignment?
- Yes. Medicare's clinician data says Joshua B. Herz 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 Joshua B. Herz see?
- In 2024, CMS data shows 2,102 Original Medicare patients and 4,368 services for Joshua B. Herz. This counts Original Medicare only and measures volume, not quality.
- What is Joshua B. Herz's NPI number?
- 1821004854. 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 Joshua B. Herz, 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 | 2,102 |
|---|---|
| Services billed to Medicare | 4,368 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,594 services
- Extended exam of the back part of the eye with optic nerve drawing (92202)588 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)446 services
- Exam of visual field with extended testing (92083)337 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)326 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%
- Arthritis47%
- Diabetes37%
- Ischemic heart disease25%
- Chronic kidney disease22%
Hospitals where Joshua B. Herz works
Medicare's Facility Affiliation Data lists Joshua B. Herz 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
- Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140252
- Swedish HospitalChicago, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140114
Practice locations
Addresses where Joshua B. Herz is enrolled with Medicare (CMS data updated October 2, 2026).
- 2050 Pfingsten RdGlenview, IL 60026
- 2100 Pfingsten RdGlenview, IL 60026
- 2650 Ridge AveEvanston, IL 60201
- 71 Waukegan Rd, Suite 700Lake Bluff, IL 60044 (224) 364‑2273
- 9600 Gross Point RdSkokie, IL 60076
Group practices
Medicare enrollment lists Joshua B. Herz as a member of this group (CMS data updated October 2, 2026).
- Endeavor Health Medical Group3,350 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 Endeavor Health Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821004854 |
| 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