Quick answers
- Does Andrew J. Kamien accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew J. Kamien 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 Andrew J. Kamien see?
- In 2024, CMS data shows 149 Original Medicare patients and 270 services for Andrew J. Kamien. This counts Original Medicare only and measures volume, not quality.
- What is Andrew J. Kamien's NPI number?
- 1285980441. 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 Andrew J. Kamien, 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 | 149 |
|---|---|
| Services billed to Medicare | 270 |
| Different services or procedures | 41 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)60 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)42 services
- Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)35 services
- Critical care, first 30-74 minutes (99291)27 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)23 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 cholesterol73%
- Arthritis61%
- Atrial fibrillation44%
- Ischemic heart disease41%
- Depression40%
Hospitals where Andrew J. Kamien works
Medicare's Facility Affiliation Data lists Andrew J. Kamien 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.
- Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520051
- Ascension SE Wisconsin HospitalMilwaukee, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520136
Practice locations
Addresses where Andrew J. Kamien is enrolled with Medicare (CMS data updated October 2, 2026).
- 2311 N Prospect AveMilwaukee, WI 53211 (414) 319‑3000
- 3801 Spring StMount Pleasant, WI 53405 (262) 687‑4011
- 801 S 70th StWest Allis, WI 53214 (414) 773‑6600
Group practices
Medicare enrollment lists Andrew J. Kamien as a member of these groups (CMS data updated October 2, 2026).
- Ascension Medical Group-Southeast Wisconsin Inc545 clinicians in the group
- Columbia St Marys Hospital Milwaukee Inc306 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Milwaukee
Clinicians with the same Medicare primary specialty in Milwaukee, WI — not a recommendation.
Other clinicians in Ascension Medical Group-Southeast Wisconsin Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Creighton University School Of Medicine |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285980441 |
| 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