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Obstetrics/Gynecology

Thalia R. Pachiyannakis, MD

Sees patients in Mooresville, IN · Elkhart, IN · Indiana

Summary

Dr. Thalia R. Pachiyannakis, MD is an OB-GYN at 1205 Hadley Rd, Suite 120, Mooresville, IN 46158. Phone: (317) 834-8950. Accepts Medicare assignment. NPI 1275860314. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 1205 Hadley Rd, Suite 120, Mooresville, IN 46158 · Directions (1 more location)
  • Phone: (317) 834‑8950
  • Medicare: Accepts Medicare assignment
  • Group practice: Franciscan Physician Network (+1 more)
  • Medical school: graduated 2005 (21 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Thalia R. Pachiyannakis, 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 Thalia R. Pachiyannakis accept Medicare assignment?
Yes. Medicare's clinician data says Thalia R. Pachiyannakis 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.
What is Thalia R. Pachiyannakis's NPI number?
1275860314. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

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

Group practices

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

  • Franciscan Physician Network1,170 clinicians in the group
  • Heart City Health Center Inc15 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Indiana →

Other OB-GYNs in Mooresville

Clinicians with the same Medicare primary specialty in Mooresville, IN — not a recommendation.

All OB-GYNs in Mooresville →

Other clinicians in Franciscan Physician Network

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

Clinician information

CredentialMD
Graduation year2005 (21 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1275860314
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians