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Internal Medicine

Donald E. Gullickson Ii, DO

Works at hospitals in Buffalo, NY · Kenmore, NY · Lewiston, NY · New York

Summary

Donald E. Gullickson Ii, DO (Internal Medicine) is listed by Medicare at 4 hospitals in Buffalo, NY, Kenmore, NY and Lewiston, NY. NPI 1124080056. 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 Donald E. Gullickson Ii, 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
36Years since medical school (graduated 1990)
West Virginia School Of Osteopathic MedicineMedical school
MaleGender (as listed)
Northtowns Medical Group, P.C.Group practice

Quick answers

Which hospitals does Donald E. Gullickson Ii work at?
Medicare's official clinician data lists Donald E. Gullickson Ii at 4 hospitals: Kaleida Health, Kenmore Mercy Hospital, Mount St. Mary's Hospital & Health Center and Sisters of Charity Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Donald E. Gullickson Ii see patients?
Medicare's clinician data lists 1 practice location in Buffalo, NY. Call before your visit to confirm the address.
What is Donald E. Gullickson Ii's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Cardiovascular Disease (Cardiology).
Does Donald E. Gullickson Ii accept Medicare assignment?
Yes. Medicare's clinician data says Donald E. Gullickson Ii 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 Donald E. Gullickson Ii offer telehealth?
Medicare's clinician data says Donald E. Gullickson Ii offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Donald E. Gullickson Ii?
(716) 874-2150, as listed in official Medicare / NPI Registry data.
What is Donald E. Gullickson Ii's NPI number?
1124080056. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Donald E. Gullickson Ii works

Medicare's Facility Affiliation Data lists Donald E. Gullickson Ii 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 Donald E. Gullickson Ii is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Donald E. Gullickson Ii as a member of this group (CMS data updated 2026-10-02).

  • Northtowns Medical Group, P.C.5 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Buffalo

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

All internal medicine doctors in Buffalo →

Clinician information

CredentialDO
Medical schoolWest Virginia School Of Osteopathic Medicine
Graduation year1990
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1124080056
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