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Allergy/Immunology

Terri M. McMillan, MD

Works at hospitals in Dayton, OH · Ohio

Summary

Dr. Terri M. McMillan, MD is an allergist and immunologist at 8039 Washington Village Dr, Suite 100, Centerville, OH 45458. Phone: (937) 435-8999. Accepts Medicare assignment. In 2024, Terri M. McMillan had 350 Original Medicare patients and 13,616 services. NPI 1104036813. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Allergist and immunologist (Medicare lists Allergy/Immunology)
  • Address: 8039 Washington Village Dr, Suite 100, Centerville, OH 45458 · Directions (1 more location)
  • Phone: (937) 435‑8999
  • Medicare: Accepts Medicare assignment
  • Hospitals: Kettering Health Dayton, Miami Valley Hospital
  • Group practice: Ohio Allergy Associates, Inc.
  • Medical school: Washington College Of Physicians And Surgeons · graduated 2006 (20 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Terri M. McMillan, 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 Terri M. McMillan accept Medicare assignment?
Yes. Medicare's clinician data says Terri M. McMillan 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 Terri M. McMillan see?
In 2024, CMS data shows 350 Original Medicare patients and 13,616 services for Terri M. McMillan. This counts Original Medicare only and measures volume, not quality.
What is Terri M. McMillan's NPI number?
1104036813. 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 Terri M. McMillan, 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 patients350
Services billed to Medicare13,616
Different services or procedures37
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Test for allergy using allergenic extract (95004)3,235 services
  2. Professional service for multiple injections of allergen (95117)1,734 services
  3. Professional service for preparation and provision of 1 or more antigens (95165)1,436 services
  4. Professional service for single injection of allergen (95115)446 services
  5. Test for allergy using allergenic extract injected into skin (95024)316 services

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 cholesterol75%
  • High blood pressure64%
  • Arthritis51%
  • Asthma41%
  • Anxiety23%
  • Diabetes21%

Hospitals where Terri M. McMillan works

Medicare's Facility Affiliation Data lists Terri M. McMillan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Kettering Health DaytonDayton, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 360133
  • Miami Valley HospitalDayton, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360051

Practice locations

Addresses where Terri M. McMillan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Terri M. McMillan as a member of this group (CMS data updated October 2, 2026).

  • Ohio Allergy Associates, Inc.4 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Ohio →

Other allergist and immunologists in Ohio

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

All allergist and immunologists in Ohio →

Other clinicians in Ohio Allergy Associates, Inc.

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

Clinician information

CredentialMD
Medical schoolWashington College Of Physicians And Surgeons
Graduation year2006 (20 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1104036813
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians