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Family Practice

Trinidad D. Osselyn

Sees patients in McDonough, GA · Georgia

Summary

Trinidad D. Osselyn is a family doctor at 1125 Town Ctr Village Dr, McDonough, GA 30253. Phone: (678) 583-6610. Accepts Medicare assignment. In 2024, Trinidad D. Osselyn had 22 Original Medicare patients and 43 services. NPI 1588976351. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 1125 Town Ctr Village Dr, McDonough, GA 30253 · Directions
  • Phone: (678) 583‑6610
  • Medicare: Accepts Medicare assignment
  • Group practice: The Southeast Permanente Medical Group
  • Medical school: graduated 2013 (13 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Trinidad D. Osselyn, 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 Trinidad D. Osselyn accept Medicare assignment?
Yes. Medicare's clinician data says Trinidad D. Osselyn 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 Trinidad D. Osselyn see?
In 2024, CMS data shows 22 Original Medicare patients and 43 services for Trinidad D. Osselyn. This counts Original Medicare only and measures volume, not quality.
What is Trinidad D. Osselyn's NPI number?
1588976351. 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 Trinidad D. Osselyn, 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 patients22
Services billed to Medicare43
Different services or procedures16
Participating Medicare providerYes
Average age of these patients67

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 blood pressure64%

Practice locations

Addresses where Trinidad D. Osselyn is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Trinidad D. Osselyn as a member of this group (CMS data updated October 2, 2026).

  • The Southeast Permanente Medical Group812 clinicians in the group

Specialties

Find other Family Practice doctors in Georgia →

Other family doctors in McDonough

Clinicians with the same Medicare primary specialty in McDonough, GA — not a recommendation.

All family doctors in McDonough →

Other clinicians in The Southeast Permanente Medical Group

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

Clinician information

Graduation year2013 (13 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1588976351
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  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