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Internal Medicine

Catherine Reizun, DO

Works at hospitals in Oneonta, NY · Cooperstown, NY · Burlington, MA … · New York, Massachusetts

Summary

Catherine Reizun, DO (Internal Medicine) is listed by Medicare at 5 hospitals in Oneonta, NY, Cooperstown, NY and Burlington, MA and other places. NPI 1609337864. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Catherine Reizun, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
7Years since medical school (graduated 2019)
FemaleGender (as listed)
Mary Imogene Bassett HospitalGroup practice

Quick answers

Which hospitals does Catherine Reizun work at?
Medicare's official clinician data lists Catherine Reizun at 5 hospitals: Aurelia Osborn Fox Memorial Hospital, Bassett Healthcare, Lahey Hospital & Medical Center, Burlington, Massachusetts General Hospital and North Shore Medical Center -. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Catherine Reizun see patients?
Medicare's clinician data lists 1 practice location in Cooperstown, NY. Call before your visit to confirm the address.
What is Catherine Reizun's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Geriatric Medicine.
Does Catherine Reizun accept Medicare assignment?
Yes. Medicare's clinician data says Catherine Reizun accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Catherine Reizun offer telehealth?
Medicare's clinician data says Catherine Reizun offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Catherine Reizun?
(607) 547-3480, as listed in official Medicare / NPI Registry data.
What is Catherine Reizun's NPI number?
1609337864. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Catherine Reizun works

Medicare's Facility Affiliation Data lists Catherine Reizun at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Catherine Reizun is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Catherine Reizun as a member of this group (CMS data updated 2026-10-02).

  • Mary Imogene Bassett Hospital763 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Cooperstown

Clinicians with the same Medicare primary specialty in Cooperstown, NY — not a recommendation.

All internal medicine doctors in Cooperstown →

Clinician information

CredentialDO
Graduation year2019
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1609337864
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians