Quick answers
- Does Dana I. Vais accept Medicare assignment?
- Yes. Medicare's clinician data says Dana I. Vais 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 Dana I. Vais see?
- In 2024, CMS data shows 372 Original Medicare patients and 30,969 services for Dana I. Vais. This counts Original Medicare only and measures volume, not quality.
- What is Dana I. Vais's NPI number?
- 1891954905. 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 Dana I. Vais, 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 | 372 |
|---|---|
| Services billed to Medicare | 30,969 |
| Different services or procedures | 56 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)556 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)229 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)163 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)57 services
- Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle (96401)51 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%
- Diabetes66%
- Arthritis65%
- Chronic kidney disease57%
- Heart failure50%
Hospitals where Dana I. Vais works
Medicare's Facility Affiliation Data lists Dana I. Vais 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.
- Community First Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140251
- Presence Saints Mary and Elizabeth Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140180
Practice locations
Addresses where Dana I. Vais is enrolled with Medicare (CMS data updated October 2, 2026).
- 2923 N California Ave, Suite 220Chicago, IL 60618 (888) 220‑6432
Group practices
Medicare enrollment lists Dana I. Vais as a member of this group (CMS data updated October 2, 2026).
- Metro Infectious Disease Consultants LLC389 clinicians in the group
Specialties
- Infectious Diseaseprimary
Other infectious disease doctors in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Other clinicians in Metro Infectious Disease Consultants LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891954905 |
| 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