Quick answers
- Does Alexander H. Arzeno accept Medicare assignment?
- Yes. Medicare's clinician data says Alexander H. Arzeno 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 Alexander H. Arzeno see?
- In 2024, CMS data shows 520 Original Medicare patients and 1,512 services for Alexander H. Arzeno. This counts Original Medicare only and measures volume, not quality.
- What is Alexander H. Arzeno's NPI number?
- 1891115085. 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 Alexander H. Arzeno, 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 | 520 |
|---|---|
| Services billed to Medicare | 1,512 |
| Different services or procedures | 86 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)312 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)294 services
- X-ray of lower and sacral spine, minimum of 4 views (72110)124 services
- X-ray of lower and sacral spine, 2-3 views (72100)116 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)71 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).
- Arthritis75%
- High cholesterol73%
- High blood pressure64%
- Ischemic heart disease23%
- Anxiety22%
- Osteoporosis21%
Hospitals where Alexander H. Arzeno works
Medicare's Facility Affiliation Data lists Alexander H. Arzeno 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.
- Kittitas Valley Community HospitalEllensburg, WA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 501333
- Overlake Hospital Medical Center & ClinicsBellevue, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500051
- Swedish IssaquahIssaquah, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500152
- Yakima Valley MemorialYakima, WA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: not listed by Medicare · CCN 500036
Practice locations
Addresses where Alexander H. Arzeno is enrolled with Medicare (CMS data updated October 2, 2026).
- 1231 116th Ave NE, Suite 750Bellevue, WA 98004 (425) 455‑3600
- 510 8th Ave NE, Suite 200Issaquah, WA 98029 (425) 392‑3030
Group practices
Medicare enrollment lists Alexander H. Arzeno as a member of this group (CMS data updated October 2, 2026).
- Proliance Surgeons Inc P S397 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Bellevue
Clinicians with the same Medicare primary specialty in Bellevue, WA — not a recommendation.
Other clinicians in Proliance Surgeons Inc P S
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Yale University School Of Medicine |
| Graduation year | 2014 (12 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1891115085 |
| 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