Erinn L. Fellner, MD

Medicare activity in 2024

Official CMS public-use data for Erinn L. Fellner, 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.

Most frequent services

1. Psychotherapy with evaluation and management visit, 30 minutes (90833)279 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)278 services
3. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)241 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)85 services
5. Psychotherapy with evaluation and management visit, 45 minutes (90836)39 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).

• Anxiety71%
• High cholesterol56%
• Depression47%
• Arthritis38%
• High blood pressure31%
• Diabetes29%

Hospitals where Erinn L. Fellner works

Medicare's Facility Affiliation Data lists Erinn L. Fellner 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.

• Speare Memorial HospitalPlymouth, NH · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 301311
• Weeks Medical CenterLancaster, NH · Critical Access Hospital · Emergency services: listed by Medicare · CCN 301303

Practice locations

Addresses where Erinn L. Fellner is enrolled with Medicare (CMS data updated October 2, 2026).

• 173 Middle StLancaster, NH 03584 (603) 788‑4911
• 461 Main St, 6cFranconia, NH 03580
• PO Box, Suite 250Franconia, NH 03580

Group practices

Medicare enrollment lists Erinn L. Fellner as a member of this group (CMS data updated October 2, 2026).

• Weeks Medical Center75 clinicians in the group

Specialties

• Psychiatryprimary

Find other Psychiatry doctors in New Hampshire →

Other psychiatrists in New Hampshire

Clinicians with the same Medicare primary specialty in New Hampshire — not a recommendation.

• Rose S. Ehret, MD
• Teresa M. Cadorette, MD
• Daniel Patterson, MD
• Stephen P. Bettwieser, MD
• Diane M. Roston, MD
• Karina Tamir
• Patrick A. Ho, MD
• Kenneth M. Brown, MD

All psychiatrists in New Hampshire →

Other clinicians in Weeks Medical Center

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Peggy M. Simon, MD
• Deborah Dicastro-Schaffer
• John W. Logsdon
• Shawna M. Delworth
• Timothy J. McGarry
• James E. Buckmaster, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians