Anna M. Royer, MD

Medicare activity in 2024

Official CMS public-use data for Anna M. Royer, 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. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)95 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)92 services
3. Biopsy of large bowel using a flexible endoscope (45380)60 services
4. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)44 services
5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)43 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 pressure73%
• High cholesterol63%
• Arthritis47%
• Anxiety37%
• Ischemic heart disease31%
• Depression31%

Hospitals where Anna M. Royer works

Medicare's Facility Affiliation Data lists Anna M. Royer 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.

• Northwestern Medical Center IncSaint Albans, VT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 470024

Practice locations

Addresses where Anna M. Royer is enrolled with Medicare (CMS data updated October 2, 2026).

• 133 Fairfield StSaint Albans, VT 05478

Group practices

Medicare enrollment lists Anna M. Royer as a member of this group (CMS data updated October 2, 2026).

• Northwestern Medical Center Inc108 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in Vermont →

Other general surgeons in Saint Albans

Clinicians with the same Medicare primary specialty in Saint Albans, VT — not a recommendation.

• Christopher J. Bartels, MD
• Jessica E. Tunis, DO
• Aaron M. Perme, MD
• Arturo M. Guzman, MD
• Edward Gray, MD
• Sarah Waterman, MD
• Michael T. Kennedy, MD

All general surgeons in Saint Albans →

Other clinicians in Northwestern Medical Center Inc

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

• Cy A. Cedar, MD
• Nathan S. Mauser, MD
• Susan D. Williams, NP
• Lucas J. Carter
• Kirsten J. Lanpher, PA
• Maryrose M. Zeviar, PA

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