Quick answers
- Does Gary L. Hagen accept Medicare assignment?
- Yes. Medicare's clinician data says Gary L. Hagen 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 Gary L. Hagen see?
- In 2024, CMS data shows 318 Original Medicare patients and 346 services for Gary L. Hagen. This counts Original Medicare only and measures volume, not quality.
- What is Gary L. Hagen's NPI number?
- 1699765545. 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 Gary L. Hagen, 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 | 318 |
|---|---|
| Services billed to Medicare | 346 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Anesthesia for lens surgery (00142)223 services
- Anesthesia for procedure on eyelid (00103)62 services
- Anesthesia for other procedure on eye (00140)38 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 cholesterol67%
- High blood pressure64%
- Arthritis37%
- Anxiety29%
- Depression23%
- Diabetes19%
Practice locations
Addresses where Gary L. Hagen is enrolled with Medicare (CMS data updated October 2, 2026).
- 10709 Wayzata Blvd, Suite 100Minnetonka, MN 55305 (763) 553‑1142
Group practices
Medicare enrollment lists Gary L. Hagen as a member of this group (CMS data updated October 2, 2026).
- Certified Anesthesia Care Co27 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Minnesota →
Other nurse anesthetists in Minnetonka
Clinicians with the same Medicare primary specialty in Minnetonka, MN — not a recommendation.
Other clinicians in Certified Anesthesia Care Co
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 1976 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699765545 |
| 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
- 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