Mary E. Alexander, M.D.
NPI 1538177845ActiveIndividual· Internal Medicine· La Mesa, CA
Internal Medicine (M.D.) in La Mesa, California, trained at Creighton University School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $641,953 for 7,621 claims, against $45,968 paid for services in 2024.
Overview
| NPI | 1538177845 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 3, 2006 |
| Last updated in NPPES | Jun 14, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G66922 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 226 |
|---|---|
| Services billed | 1,303 across 22 procedure codes |
| Paid by Medicare | $45,968 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,621 · 17,190 30-day fills |
|---|---|
| Patients | 727 |
| Total drug cost | $641,953 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Creighton University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Sharp Rees-Stealy Medical Group IncSan Diego, CA · 884 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 91 internal medicine physicians in La Mesa · All internal medicine physicians in California