Quick answers
- Does Howard S. Lewis accept Medicare assignment?
- Yes. Medicare's clinician data says Howard S. Lewis 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 Howard S. Lewis see?
- In 2024, CMS data shows 1,741 Original Medicare patients and 3,899 services for Howard S. Lewis. This counts Original Medicare only and measures volume, not quality.
- What is Howard S. Lewis's NPI number?
- 1518041235. 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 Howard S. Lewis, 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 | 1,741 |
|---|---|
| Services billed to Medicare | 3,899 |
| Different services or procedures | 64 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,036 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)794 services
- Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)388 services
- Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days (93296)388 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)164 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%
- Arthritis47%
- Ischemic heart disease39%
- Atrial fibrillation35%
- Chronic kidney disease27%
Hospitals where Howard S. Lewis works
Medicare's Facility Affiliation Data lists Howard S. Lewis 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
- Swedish Edmonds HospitalEdmonds, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500026
- Swedish IssaquahIssaquah, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500152
- Swedish Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500027
- Swedish Medical Center / Cherry HillSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500025
Practice locations
Addresses where Howard S. Lewis is enrolled with Medicare (CMS data updated October 2, 2026).
- 751 NE Blakely Dr, Suite 3020Issaquah, WA 98029 (206) 861‑8550
Group practices
Medicare enrollment lists Howard S. Lewis as a member of this group (CMS data updated October 2, 2026).
- Swedish Health Services79 clinicians in the group
Specialties
Find other Interventional Cardiology doctors in Washington →
Other interventional cardiologists in Issaquah
Clinicians with the same Medicare primary specialty in Issaquah, WA — not a recommendation.
Other clinicians in Swedish Health Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 1983 (43 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) | 1518041235 |
| 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