Quick answers
- Does Worawan Rattanasamphan accept Medicare assignment?
- Yes. Medicare's clinician data says Worawan Rattanasamphan 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 Worawan Rattanasamphan see?
- In 2024, CMS data shows 563 Original Medicare patients and 2,129 services for Worawan Rattanasamphan. This counts Original Medicare only and measures volume, not quality.
- What is Worawan Rattanasamphan's NPI number?
- 1073574471. 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 Worawan Rattanasamphan, 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 | 563 |
|---|---|
| Services billed to Medicare | 2,129 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 83 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)983 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)308 services
- Insertion of needle into vein for collection of blood sample (36415)274 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)191 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)100 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%
- Arthritis54%
- Osteoporosis32%
- Ischemic heart disease29%
- Atrial fibrillation25%
Hospitals where Worawan Rattanasamphan works
Medicare's Facility Affiliation Data lists Worawan Rattanasamphan 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.
- Evergreenhealth Medical CenterKirkland, WA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 500124
- 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
Practice locations
Addresses where Worawan Rattanasamphan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1135 116th Ave NE, Suite 600Bellevue, WA 98004 (425) 454‑2656
- 1750 112th Ave NE, Suite B102Bellevue, WA 98004 (425) 688‑5460
- 2600 Compass RdGlenview, IL 60026
Group practices
Medicare enrollment lists Worawan Rattanasamphan as a member of these groups (CMS data updated October 2, 2026).
- Select Rehabilitation, LLC2,046 clinicians in the group
- Select Outpatient Services Inc805 clinicians in the group
- Overlake Medical Clinics LLC425 clinicians in the group
Specialties
- Geriatric Medicineprimary
- Internal Medicinealso
Other geriatricians in Bellevue
Clinicians with the same Medicare primary specialty in Bellevue, WA — not a recommendation.
Other clinicians in Select Rehabilitation, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1073574471 |
| 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