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Dermatology

Mary Ann D. Bentz, MD

Works at hospitals in New London, CT · Watertown, NY · Connecticut, New York

Summary

Dr. Mary Ann D. Bentz, MD is a dermatologist at 425 Montauk Ave, New London, CT 06320. May accept Medicare assignment. In 2024, Mary Ann D. Bentz had 968 Original Medicare patients and 2,921 services. NPI 1295720910. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Dermatologist (Medicare lists Dermatology)
  • Address: 425 Montauk Ave, New London, CT 06320 · Directions (1 more location)
  • Medicare: May accept Medicare assignment
  • Hospitals: Lawrence & Memorial Hospital, Samaritan Medical Center
  • Medical school: Boston University School Of Medicine · graduated 1992 (34 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Mary Ann D. Bentz, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Mary Ann D. Bentz accept Medicare assignment?
Medicare's clinician data says Mary Ann D. Bentz may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Mary Ann D. Bentz see?
In 2024, CMS data shows 968 Original Medicare patients and 2,921 services for Mary Ann D. Bentz. This counts Original Medicare only and measures volume, not quality.
What is Mary Ann D. Bentz's NPI number?
1295720910. 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 Mary Ann D. Bentz, 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 patients968
Services billed to Medicare2,921
Different services or procedures28
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)872 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)709 services
  3. Destruction of precancer skin growth, 1 growth (17000)310 services
  4. Destruction of precancer skin growth, 2-14 growths (17003)294 services
  5. Biopsy of related skin growth, first growth (11102)199 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 cholesterol75%
  • High blood pressure73%
  • Arthritis48%
  • Anxiety26%
  • Osteoporosis20%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)20%

Hospitals where Mary Ann D. Bentz works

Medicare's Facility Affiliation Data lists Mary Ann D. Bentz 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.

  • Lawrence & Memorial HospitalNew London, CT · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 070007
  • Samaritan Medical CenterWatertown, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330157

Practice locations

Addresses where Mary Ann D. Bentz is enrolled with Medicare (CMS data updated October 2, 2026).

  • 425 Montauk AveNew London, CT 06320
  • 425 Montauk Ave, Suite 2New London, CT 06320

Specialties

Find other Dermatology doctors in Connecticut →

Other dermatologists in Connecticut

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

All dermatologists in Connecticut →

Clinician information

CredentialMD
Medical schoolBoston University School Of Medicine
Graduation year1992 (34 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
TelehealthOffers telehealth services
NPI (National Provider Identifier)1295720910
CorrectionsReport 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

  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