Quick answers
- Does Melissa T. Irwin accept Medicare assignment?
- Yes. Medicare's clinician data says Melissa T. Irwin 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 T. Irwin see?
- In 2024, CMS data shows 128 Original Medicare patients and 129 services for Melissa T. Irwin. This counts Original Medicare only and measures volume, not quality.
- What is Melissa T. Irwin's NPI number?
- 1467748376. 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 T. Irwin, 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 | 128 |
|---|---|
| Services billed to Medicare | 129 |
| Different services or procedures | 40 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Anesthesia for lens surgery (00142)37 services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)12 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 cholesterol71%
- High blood pressure70%
- Arthritis62%
- Depression30%
- Anxiety28%
- Chronic kidney disease27%
Hospitals where Melissa T. Irwin works
Medicare's Facility Affiliation Data lists Melissa T. Irwin 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.
- AdventHealth Castle RockCastle Rock, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060125
- Centura Health-St Anthony HospitalLakewood, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060015
- National Jewish HealthDenver, CO · Acute Care Hospital · Emergency services: listed by Medicare · CCN 060107
- Sky Ridge Medical CenterLone Tree, CO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 060112
- UCHealth Highlands Ranch HospitalHighlands Ranch, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060132
Practice locations
Addresses where Melissa T. Irwin is enrolled with Medicare (CMS data updated October 2, 2026).
- 11600 W 2nd Pl, Shhg Hospitalists SahLakewood, CO 80228 (720) 321‑0000
- 1400 Jackson StDenver, CO 80206 (303) 398‑1355
- 2525 S Downing St, Porter Adventist HospitalDenver, CO 80210 (303) 438‑3999
- 3455 Lutheran PkwyWheat Ridge, CO 80033 (303) 422‑9438
Group practices
Medicare enrollment lists Melissa T. Irwin as a member of these groups (CMS data updated October 2, 2026).
- Catholic Health Initiatives Colorado1,225 clinicians in the group
- US Anesthesia Partners of Colorado Inc461 clinicians in the group
- National Jewish Health247 clinicians in the group
- Physician Anesthesia Services PC113 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Colorado →
Other nurse anesthetists in Lakewood
Clinicians with the same Medicare primary specialty in Lakewood, CO — not a recommendation.
Other clinicians in Catholic Health Initiatives Colorado
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1467748376 |
| 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