Quick answers
- Does Melissa Medina accept Medicare assignment?
- Yes. Medicare's clinician data says Melissa Medina 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 Melissa Medina see?
- In 2024, CMS data shows 302 Original Medicare patients and 1,863 services for Melissa Medina. This counts Original Medicare only and measures volume, not quality.
- What is Melissa Medina's NPI number?
- 1639587439. 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 Melissa Medina, 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 | 302 |
|---|---|
| Services billed to Medicare | 1,863 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)227 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)144 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)27 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)14 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)11 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%
- Diabetes43%
- Ischemic heart disease39%
- Chronic kidney disease35%
Hospitals where Melissa Medina works
Medicare's Facility Affiliation Data lists Melissa Medina 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.
- Grande Ronde HospitalLa Grande, OR · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 381321
- Providence St Mary Medical CenterWalla Walla, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500002
- St Anthony HospitalPendleton, OR · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 381319
- St Charles Medical Center - BendBend, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380047
- Tacoma General Allenmore HospitalTacoma, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500129
Practice locations
Addresses where Melissa Medina is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.
- 1017 S 2nd Ave, Suite 4Walla Walla, WA 99362 (509) 897‑8400
- 1315 NW 4th StRedmond, OR 97756 (541) 706‑4200
- 1400 E Kincaid StMount Vernon, WA 98274 (360) 428‑2500
- 17700 SE 272nd St, Suite 420Kent, WA 98042 (253) 639‑9660
- 211 S 13th StMount Vernon, WA 98274 (360) 814‑5900
Group practices
Medicare enrollment lists Melissa Medina as a member of these groups (CMS data updated October 2, 2026).
- St Charles Health System Inc377 clinicians in the group
- Public Hospital Dist No 1 Skagit323 clinicians in the group
- Providence Health and Services - Washington270 clinicians in the group
- Washington Gastroenterology PLLC143 clinicians in the group
- Assoc in Gastroenterology, PC27 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Walla Walla
Clinicians with the same Medicare primary specialty in Walla Walla, WA — not a recommendation.
Other clinicians in St Charles Health System Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1639587439 |
| 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