Quick answers
- Does Erin R. Griffin accept Medicare assignment?
- Medicare's clinician data says Erin R. Griffin may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Erin R. Griffin see?
- In 2024, CMS data shows 298 Original Medicare patients and 350 services for Erin R. Griffin. This counts Original Medicare only and measures volume, not quality.
- What is Erin R. Griffin's NPI number?
- 1104438944. 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 R. Griffin, 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 | 298 |
|---|---|
| Services billed to Medicare | 350 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Emergency department visit with high level of medical decision making (99285)157 services
- Emergency department visit with moderate level of medical decision making (99284)105 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)28 services
- Emergency department visit with low level of medical decision making (99283)15 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%
- Arthritis55%
- Ischemic heart disease43%
- Anxiety41%
- Chronic kidney disease36%
Hospitals where Erin R. Griffin works
Medicare's Facility Affiliation Data lists Erin R. Griffin 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.
- Houlton Regional HospitalHoulton, ME · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 201308
- Northern Light Eastern Maine Medical CenterBangor, ME · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 200033
- Northern Light Sebasticook Valley HospitalPittsfield, ME · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 201313
- York HospitalYork, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200020
Practice locations
Addresses where Erin R. Griffin is enrolled with Medicare (CMS data updated October 2, 2026).
- 114 Sanford Rd, Myhealth WellsWells, ME 04090 (207) 646‑5211
- 15 Hospital DrYork, ME 03909 (207) 363‑4321
- 300 Main StLewiston, ME 04240 (207) 795‑5646
- 447 N Main StPittsfield, ME 04967 (207) 487‑4000
Group practices
Medicare enrollment lists Erin R. Griffin as a member of these groups (CMS data updated October 2, 2026).
- York Hospital198 clinicians in the group
- Bluewater Emergency Partners of Brunswick, LLC154 clinicians in the group
- Sebasticook Valley Health36 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Wells
Clinicians with the same Medicare primary specialty in Wells, ME — not a recommendation.
Other clinicians in York Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2020 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1104438944 |
| 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