Quick answers
- Does Erin H. Monahan accept Medicare assignment?
- Yes. Medicare's clinician data says Erin H. Monahan 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 Erin H. Monahan see?
- In 2024, CMS data shows 249 Original Medicare patients and 947 services for Erin H. Monahan. This counts Original Medicare only and measures volume, not quality.
- What is Erin H. Monahan's NPI number?
- 1639416522. 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 Erin H. Monahan, 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 | 249 |
|---|---|
| Services billed to Medicare | 947 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)416 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)142 services
- Destruction of precancer skin growth, 1 growth (17000)128 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)90 services
- Biopsy of related skin growth, first growth (11102)69 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 cholesterol66%
- High blood pressure65%
- Arthritis39%
- Diabetes22%
- Chronic kidney disease18%
- Ischemic heart disease16%
Hospitals where Erin H. Monahan works
Medicare's Facility Affiliation Data lists Erin H. Monahan 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.
- Essentia Health DuluthDuluth, MN · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 240019
- Spooner Health SystemSpooner, WI · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 521332
- St Marys Hospital SuperiorSuperior, WI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 521329
Practice locations
Addresses where Erin H. Monahan is enrolled with Medicare (CMS data updated October 2, 2026).
- 400 E 3rd StDuluth, MN 55805 (218) 786‑8364
Group practices
Medicare enrollment lists Erin H. Monahan as a member of this group (CMS data updated October 2, 2026).
- The Duluth Clinic Ltd1,144 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Duluth
Clinicians with the same Medicare primary specialty in Duluth, MN — not a recommendation.
Other clinicians in The Duluth Clinic Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2012 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639416522 |
| 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