Andrew Richard Zaager, M.D.
NPI 1770519977ActiveIndividual· Internal Medicine· Plainview, NY
Internal Medicine (M.D.) with Doctor on Demand Professionals P C, practicing in Plainview, New York. In 2024 Medicare paid $10,819 for 218 patients, and Part D covered 406 of their prescriptions, 85% of them generic.
Overview
| NPI | 1770519977 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 23, 2006 |
| Last updated in NPPES | Dec 12, 2019 |
| Certified by provider | Dec 12, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 155654 | NY |
| Internal Medicine | 207R00000X | 2019-00955 | NC |
| Internal Medicine | 207R00000X | 83125 | SC |
| Internal Medicine | 207R00000X | S4251 | TX |
| Internal Medicine | 207R00000X | E-12049 | AR |
| Internal Medicine | 207R00000X | 82305 | GA |
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 - Internal Medicine (AR); Practitioner - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 218 |
|---|---|
| Services billed | 239 across 5 procedure codes |
| Paid by Medicare | $10,819 |
Part D prescriptions in 2024
| Prescriptions (claims) | 406 · 502 30-day fills |
|---|---|
| Patients | 246 |
| Total drug cost | $15,026 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Doctor on Demand Professionals P CBaltimore, MD · 66 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 51 internal medicine physicians in Plainview · All internal medicine physicians in New York