Gregory Maness Allen, M.D.
NPI 1376986331ActiveIndividual· Internal Medicine· Baltimore, MD
Internal Medicine (M.D.) with University of California San Francisco and 1 other group, practicing in Baltimore, Maryland. Their prescriptions cost Medicare Part D more than their services did: $847,238 for 103 claims, against $16,169 paid for services in 2024. Lists Marinhealth Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1376986331 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 9, 2013 |
| Last updated in NPPES | Apr 24, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 0276 | MD |
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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 222 across 5 procedure codes |
| Paid by Medicare | $16,169 |
Part D prescriptions in 2024
| Prescriptions (claims) | 103 · 133 30-day fills |
|---|---|
| Patients | 18 |
| Total drug cost | $847,238 |
| Generic share | 46% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- University of California San FranciscoSan Francisco, CA · 1,839 clinicians
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
Hospital affiliations
- Marinhealth Medical CenterGreenbrae, CA
- UCSF Medical CenterSan Francisco, CA
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 1,555 internal medicine physicians in Baltimore · All internal medicine physicians in Maryland