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Urology

Gary K. Tan, DO

Works at hospitals in Cadiz, OH · Steubenville, OH · Weirton, WV · Ohio, West Virginia

Summary

Gary K. Tan, DO (Urology) is listed by Medicare at 3 hospitals in Cadiz, OH, Steubenville, OH and Weirton, WV. NPI 1366734717. 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 Gary K. Tan, 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

UrologyPrimary specialty
YesAccepts Medicare assignment
15Years since medical school (graduated 2011)
Midwestern University, Chicago College Of Osteopathic MedMedical school
MaleGender (as listed)
Trinity WestGroup practice

Quick answers

Which hospitals does Gary K. Tan work at?
Medicare's official clinician data lists Gary K. Tan at 3 hospitals: Harrison Community Hospital, Trinity Medical Ctr East &Trinity Medical Ctr West and Weirton Medical Center, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Gary K. Tan see patients?
Medicare's clinician data lists 1 practice location in Steubenville, OH. Call before your visit to confirm the address.
What is Gary K. Tan's specialty?
Medicare lists Urology as the primary specialty.
Does Gary K. Tan accept Medicare assignment?
Yes. Medicare's clinician data says Gary K. Tan 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.
What is the phone number for Gary K. Tan?
(740) 266-5969, as listed in official Medicare / NPI Registry data.
What is Gary K. Tan's NPI number?
1366734717. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Gary K. Tan works

Medicare's Facility Affiliation Data lists Gary K. Tan 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 Gary K. Tan is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Gary K. Tan as a member of this group (CMS data updated 2026-10-02).

  • Trinity West148 clinicians in the group

Specialties

Find other Urology doctors in Ohio →

Other urologists in Ohio

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

All urologists in Ohio →

Clinician information

CredentialDO
Medical schoolMidwestern University, Chicago College Of Osteopathic Med
Graduation year2011
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1366734717
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