Quick answers
- Does Joanna W. Zid accept Medicare assignment?
- Yes. Medicare's clinician data says Joanna W. Zid 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 Joanna W. Zid see?
- In 2024, CMS data shows 513 Original Medicare patients and 11,321 services for Joanna W. Zid. This counts Original Medicare only and measures volume, not quality.
- What is Joanna W. Zid's NPI number?
- 1598773061. 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 Joanna W. Zid, 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 | 513 |
|---|---|
| Services billed to Medicare | 11,321 |
| Different services or procedures | 116 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Injection, denosumab, 1 mg (J0897)3,780 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,212 services
- Insertion of needle into vein for collection of blood sample (36415)963 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test (85027)692 services
- Blood test, lipids (cholesterol and triglycerides) (80061)611 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 blood pressure75%
- High cholesterol75%
- Arthritis49%
- Diabetes29%
- Anxiety29%
- Ischemic heart disease28%
Hospitals where Joanna W. Zid works
Medicare's Facility Affiliation Data lists Joanna W. Zid 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.
- Morris Hospital & Healthcare CentersMorris, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140101
- Saint Joseph Medical CenterJoliet, IL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 140007
- Silver Cross Hospital and Medical CentersNew Lenox, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140213
Practice locations
Addresses where Joanna W. Zid is enrolled with Medicare (CMS data updated October 2, 2026).
- 330 Madison St, Suite 103Joliet, IL 60435 (815) 725‑2121
Group practices
Medicare enrollment lists Joanna W. Zid as a member of this group (CMS data updated October 2, 2026).
- Dupage Medical Group Ltd1,322 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Joliet
Clinicians with the same Medicare primary specialty in Joliet, IL — not a recommendation.
Other clinicians in Dupage Medical Group Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1994 (32 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1598773061 |
| 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