Jennifer Nayor, MD

Medicare activity in 2024

Official CMS public-use data for Jennifer Nayor, 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. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)104 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)95 services
3. Biopsy of large bowel using a flexible endoscope (45380)92 services
4. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)82 services
5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)77 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 cholesterol72%
• High blood pressure69%
• Arthritis47%
• Anxiety34%
• Osteoporosis28%
• Depression25%

Hospitals where Jennifer Nayor works

Medicare's Facility Affiliation Data lists Jennifer Nayor 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.

• Emerson Hospital -W Concord, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220084

Practice locations

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

• 131 Old Rd To 9 Acre CorConcord, MA 01742 (978) 287‑3835

Group practices

Medicare enrollment lists Jennifer Nayor as a member of this group (CMS data updated October 2, 2026).

• Emerson Practice Associates, Inc240 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in Massachusetts →

Other gastroenterologists in Concord

Clinicians with the same Medicare primary specialty in Concord, MA — not a recommendation.

• Julio C. Ayala, MD
• Christopher Thompson, MD
• Marvin Ryou, MD
• David Stockwell Iii, MD
• Andrea J. Fribush, MD
• Abhijeet Kashyap, MD

All gastroenterologists in Concord →

Other clinicians in Emerson Practice Associates, Inc

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

• Peter A. Hoenig, MD
• Kaleigh Hunt
• Jeffrey B. Velez, MD
• Benista Owusu Amo, MD
• Jeremy Garneau, DO
• Hannah M. Howard, NP

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