Quick answers
- Does Arthur H. Katz accept Medicare assignment?
- Yes. Medicare's clinician data says Arthur H. Katz 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 Arthur H. Katz see?
- In 2024, CMS data shows 429 Original Medicare patients and 8,872 services for Arthur H. Katz. This counts Original Medicare only and measures volume, not quality.
- What is Arthur H. Katz's NPI number?
- 1417944109. 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 Arthur H. Katz, 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 | 429 |
|---|---|
| Services billed to Medicare | 8,872 |
| Different services or procedures | 34 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Test for allergy using allergenic extract (95004)5,054 services
- Diagnostic exam of nasal passages using an endoscope (31231)893 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)801 services
- Professional service for preparation and provision of 1 or more antigens (95165)645 services
- Professional service for multiple injections of allergen (95117)262 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%
- Arthritis50%
- Diabetes39%
- Ischemic heart disease30%
- Chronic kidney disease26%
Hospitals where Arthur H. Katz works
Medicare's Facility Affiliation Data lists Arthur H. Katz 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.
- Advocate Trinity HospitalChicago, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140048
- Franciscan Health Olympia & Chicago HeightsOlympia Fields, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140172
Practice locations
Addresses where Arthur H. Katz is enrolled with Medicare (CMS data updated October 2, 2026).
- 1950 45th St, Suite 205Munster, IN 46321 (219) 934‑9396
- 3235 Vollmer Rd, Suite 120Flossmoor, IL 60422 (708) 747‑6900
Group practices
Medicare enrollment lists Arthur H. Katz as a member of this group (CMS data updated October 2, 2026).
- Arthur H. Katz, M.D., S.C.3 clinicians in the group
Specialties
- Otolaryngologyprimary
- Allergy/Immunologyalso
Other ENT doctors in Munster
Clinicians with the same Medicare primary specialty in Munster, IN — not a recommendation.
Other clinicians in Arthur H. Katz, M.D., S.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Chicago College Of Medicine And Surgery |
| Graduation year | 1976 (50 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417944109 |
| 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