Timothy Siegel, MD

Medicare activity in 2024

Official CMS public-use data for Timothy Siegel, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)101 services
2. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)65 services
3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)22 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 pressure70%
• High cholesterol57%
• Anxiety52%
• Depression48%
• Chronic kidney disease43%
• Diabetes30%

Hospitals where Timothy Siegel works

Medicare's Facility Affiliation Data lists Timothy Siegel 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.

• Alice Peck Day Memorial HospitalLebanon, NH · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 301305
• Mary Hitchcock Memorial HospitalLebanon, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300003

Practice locations

Addresses where Timothy Siegel is enrolled with Medicare (CMS data updated October 2, 2026).

• 1 Medical Ctr DrLebanon, NH 03756 (603) 650‑5000
• 10 Alice Peck Day DrLebanon, NH 03766 (603) 448‑3121

Group practices

Medicare enrollment lists Timothy Siegel as a member of these groups (CMS data updated October 2, 2026).

• Dartmouth-Hitchcock Clinic1,472 clinicians in the group
• Alice Peck Day Memorial Hospital132 clinicians in the group

Specialties

• General Surgeryprimary
• Hospice/Palliative Carealso

Find other General Surgery doctors in New Hampshire →

Other general surgeons in Lebanon

Clinicians with the same Medicare primary specialty in Lebanon, NH — not a recommendation.

• James C. Cooros, MD
• Richard J. Barth Jr., MD
• Bruce Chung, MD
• Lucinda C. Guerra, MD
• Asha M. Zimmerman, MD
• Emily S. Ruckdeschel, MD
• Boris Bronfine, MD
• David J. Mancini, MD

All general surgeons in Lebanon →

Other clinicians in Dartmouth-Hitchcock Clinic

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

• Marilena Caldarusa, MD
• Isabella I. Jobse, PA
• Srikrishna Nagri, MD
• Priscilla Slanetz, MD
• Ann M. Branen
• Perry A. Ball, 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