Gregory Wong Demeo, D.O.
NPI 1497712657ActiveIndividual· Obstetrics & Gynecology· Newark, DE
Obstetrics & Gynecology (D.O.) in Newark, Delaware, trained at Rowan University School of Osteopathic Medicine (class of 1987). Their prescriptions cost Medicare Part D more than their services did: $33,741 for 276 claims, against $13,524 paid for services in 2024. Amgen Inc. was the largest of 6 companies reporting payments in 2025, $243.88 in all, mostly food and beverage.
Overview
| NPI | 1497712657 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Apr 28, 2006 |
| Last updated in NPPES | Apr 2, 2021 |
| Certified by provider | Apr 2, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | C20003423 | DE |
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 - Obstetrics/Gynecology (DE) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 206 |
|---|---|
| Services billed | 459 across 17 procedure codes |
| Paid by Medicare | $13,524 |
Part D prescriptions in 2024
| Prescriptions (claims) | 276 · 694 30-day fills |
|---|---|
| Patients | 93 |
| Total drug cost | $33,741 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Rowan University School of Osteopathic Medicine |
|---|---|
| Graduation year | 1987 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Lifeline Medical Associates LLCMorristown, NJ · 157 clinicians
Hospital affiliations
- Beebe Medical CenterLewes, DE
- Christiana HospitalNewark, DE
Industry payments (Open Payments)
- 2025$243.88 · 13 payments from 6 companies
- 2024$295.48 · 16 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $95.35 | 5 |
| Millicent US Inc | $46.62 | 3 |
| Sumitomo Pharma America, Inc. | $40.07 | 2 |
| Sage Therapeutics, LLC | $24.49 | 1 |
| Coopersurgical, Inc. | $23.10 | 1 |
What the 2025 payments were for
- Food and Beverage$243.88 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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