Quick answers
- Does Andrew Johnson Cowley accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew Johnson Cowley 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 Johnson Cowley see?
- In 2024, CMS data shows 160 Original Medicare patients and 162 services for Andrew Johnson Cowley. This counts Original Medicare only and measures volume, not quality.
- What is Andrew Johnson Cowley's NPI number?
- 1255388377. 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 Johnson Cowley, 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 | 160 |
|---|---|
| Services billed to Medicare | 162 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Anesthesia for lens surgery (00142)84 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 pressure73%
- High cholesterol66%
- Arthritis42%
- Depression30%
- Anxiety27%
- Ischemic heart disease26%
Hospitals where Andrew Johnson Cowley works
Medicare's Facility Affiliation Data lists Andrew Johnson Cowley 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.
- Ridgeview Medical CenterWaconia, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 240056
- Spring Valley Hospital Medical CenterLas Vegas, NV · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 290046
- Valley Hospital Medical CenterLas Vegas, NV · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 290021
Practice locations
Addresses where Andrew Johnson Cowley is enrolled with Medicare (CMS data updated October 2, 2026).
- 3000 Hundertmark Rd, Suite 200Chaska, MN 55318 (952) 479‑6304
- 5400 S Rainbow BlvdLas Vegas, NV 89118 (702) 325‑4651
Group practices
Medicare enrollment lists Andrew Johnson Cowley as a member of these groups (CMS data updated October 2, 2026).
- Metropolitan Anesthesia Network LLP515 clinicians in the group
- Red Rock Anesthesia Consultants LLC108 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Minnesota →
Other nurse anesthetists in Chaska
Clinicians with the same Medicare primary specialty in Chaska, MN — not a recommendation.
Other clinicians in Metropolitan Anesthesia Network LLP
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255388377 |
| 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