John Michael Ham-Ying, M.D.
NPI 1780683870ActiveIndividual· Family Medicine· Deltona, FL
Family Medicine (M.D.) in Deltona, Florida, trained at Meharry Medical College School of Medicine (class of 1981). Part D covered 3,151 prescriptions written in 2024, 82% of them generic. Janssen Scientific Affairs, LLC was the largest of 10 companies reporting payments in 2025, $1,220 in all, mostly food and beverage.
Overview
| NPI | 1780683870 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 20, 2005 |
| Last updated in NPPES | Jul 22, 2024 |
| Certified by provider | Jul 22, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | ME46938 | FL |
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 (FL) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 3,151 · 7,554 30-day fills |
|---|---|
| Patients | 338 |
| Total drug cost | $390,936 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Meharry Medical College School of Medicine |
|---|---|
| Graduation year | 1981 |
| Medicare specialty | Family Practice |
Medical group
- Northeast Florida Health Services, IncDeland, FL · 9 clinicians
Industry payments (Open Payments)
- 2025$1,220 · 27 payments from 10 companies
- 2024$586.38 · 26 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Scientific Affairs, LLC | $357.81 | 4 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $273.66 | 6 |
| Lilly USA, LLC | $121.85 | 1 |
| Glaxosmithkline, LLC. | $117.99 | 1 |
| Averitas Pharma Inc. | $89.41 | 3 |
What the 2025 payments were for
- Food and Beverage$1,220 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 28 family medicine physicians in Deltona · All family medicine physicians in Florida