Diane Lynn Armstrong, M.D.
NPI 1104913508ActiveIndividual· Family Medicine· Fairfield, OH
Family Medicine (M.D.) in Fairfield, Ohio, trained at University of Toledo College of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $997,675 for 11,697 claims, against $100,521 paid for services in 2024. Imperative Care, Inc was the largest of 3 companies reporting payments in 2025, $177.23 in all, mostly food and beverage.
Overview
| NPI | 1104913508 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 6, 2006 |
| Last updated in NPPES | Apr 29, 2022 |
| Certified by provider | Apr 29, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 35056729 | OH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 243 |
|---|---|
| Services billed | 2,159 across 43 procedure codes |
| Paid by Medicare | $100,521 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,697 · 24,926 30-day fills |
|---|---|
| Patients | 571 |
| Total drug cost | $997,675 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Toledo College of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Mercy Health Physicians Cincinnati LLCLiberty Township, OH · 190 clinicians
Hospital affiliations
- Christ HospitalCincinnati, OH
- Good Samaritan HospitalCincinnati, OH
- Mercy Health - Fairfield HospitalFairfield, OH
- Mercy Health - West HospitalCincinnati, OH
- The Jewish Hospital-Mercy HealthCincinnati, OH
Other facilities
- American Mercy Home Care, LLCHome health agency · Cincinnati, OH
Industry payments (Open Payments)
- 2025$177.23 · 7 payments from 3 companies
- 2024$33.45 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Imperative Care, Inc | $142.43 | 5 |
| Inspire Medical Systems, Inc. | $19.29 | 1 |
| Heartflow, Inc. | $15.51 | 1 |
What the 2025 payments were for
- Food and Beverage$177.23 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 23 family medicine physicians in Fairfield · All family medicine physicians in Ohio