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Internal Medicine

Cynthia I. Gentes, MD

Works at hospitals in Bridgeport, CT · Greenwich, CT · Derby, CT … · Connecticut

Summary

Dr. Cynthia I. Gentes, MD is an internal medicine doctor at 1931 Black Rock Tpke, Fairfield, CT 06825. Phone: (203) 384-8681. Accepts Medicare assignment. In 2024, Cynthia I. Gentes had 271 Original Medicare patients and 1,305 services. NPI 1164434668. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1931 Black Rock Tpke, Fairfield, CT 06825 · Directions (4 more locations)
  • Phone: (203) 384‑8681
  • Medicare: Accepts Medicare assignment
  • Hospitals: Bridgeport Hospital, Greenwich Hospital Association -, Griffin Hospital and 1 more
  • Group practice: Northeast Medical Group Inc (+1 more)
  • Medical school: Columbia University College Of Physicians And Surgeons · graduated 1988 (38 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 Cynthia I. Gentes, 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 Cynthia I. Gentes accept Medicare assignment?
Yes. Medicare's clinician data says Cynthia I. Gentes accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Cynthia I. Gentes see?
In 2024, CMS data shows 271 Original Medicare patients and 1,305 services for Cynthia I. Gentes. This counts Original Medicare only and measures volume, not quality.
What is Cynthia I. Gentes's NPI number?
1164434668. 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 Cynthia I. Gentes, 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 patients271
Services billed to Medicare1,305
Different services or procedures40
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)239 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)198 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)131 services
  4. Administration of influenza virus vaccine (G0008)71 services
  5. Influenza vaccine, inactivated (90653)64 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 pressure72%
  • Arthritis45%
  • Osteoporosis41%
  • Depression25%
  • Anxiety25%

Hospitals where Cynthia I. Gentes works

Medicare's Facility Affiliation Data lists Cynthia I. Gentes 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.

  • Bridgeport HospitalBridgeport, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070010
  • Greenwich Hospital Association -Greenwich, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070018
  • Griffin HospitalDerby, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070031
  • Yale-New Haven HospitalNew Haven, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070022

Practice locations

Addresses where Cynthia I. Gentes is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Cynthia I. Gentes as a member of these groups (CMS data updated October 2, 2026).

  • Northeast Medical Group Inc1,360 clinicians in the group
  • Rehabilitation Associates Inc529 clinicians in the group

Specialties

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in Fairfield

Clinicians with the same Medicare primary specialty in Fairfield, CT — not a recommendation.

All internal medicine doctors in Fairfield →

Other clinicians in Northeast Medical Group Inc

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

Clinician information

CredentialMD
Medical schoolColumbia University College Of Physicians And Surgeons
Graduation year1988 (38 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1164434668
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