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Internal Medicine

Eva R. Zimmerman, MD

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

Summary

Dr. Eva R. Zimmerman, MD is an internal medicine doctor at 1931 Black Rock Tpke, Fairfield, CT 06825. Phone: (203) 384-8681. Accepts Medicare assignment. In 2024, Eva R. Zimmerman had 187 Original Medicare patients and 1,183 services. NPI 1366008740. 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 (1 more location)
  • Phone: (203) 384‑8681
  • Medicare: Accepts Medicare assignment
  • Hospitals: Bridgeport Hospital, Danbury Hospital, Greenwich Hospital Association - and 1 more
  • Group practice: Nuvance Health Medical Practice Ct Inc (+1 more)
  • Medical school: graduated 2019 (7 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 Eva R. Zimmerman, 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 Eva R. Zimmerman accept Medicare assignment?
Yes. Medicare's clinician data says Eva R. Zimmerman 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 Eva R. Zimmerman see?
In 2024, CMS data shows 187 Original Medicare patients and 1,183 services for Eva R. Zimmerman. This counts Original Medicare only and measures volume, not quality.
What is Eva R. Zimmerman's NPI number?
1366008740. 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 Eva R. Zimmerman, 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 patients187
Services billed to Medicare1,183
Different services or procedures30
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)353 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)341 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)207 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)73 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)47 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 pressure56%
  • Arthritis50%
  • Osteoporosis29%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)26%
  • Anxiety22%

Hospitals where Eva R. Zimmerman works

Medicare's Facility Affiliation Data lists Eva R. Zimmerman 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
  • Danbury HospitalDanbury, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070033
  • Greenwich Hospital Association -Greenwich, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070018
  • Norwalk HospitalNorwalk, CT · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 070034

Practice locations

Addresses where Eva R. Zimmerman is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Eva R. Zimmerman as a member of these groups (CMS data updated October 2, 2026).

  • Nuvance Health Medical Practice Ct Inc747 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 Nuvance Health Medical Practice Ct Inc

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

Clinician information

CredentialMD
Graduation year2019 (7 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1366008740
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