Mark Samuel Eichenbaum, M.D.
NPI 1871764977ActiveIndividual· Internal Medicine, Geriatric Medicine· Saint Petersburg, FL
Internal Medicine, Geriatric Medicine (M.D.) in Saint Petersburg, Florida, trained at New York University School of Medicine (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $1,312,404 for 14,179 claims, against $420,117 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 10 companies reporting payments in 2025, $342.85 in all, mostly food and beverage.
Overview
| NPI | 1871764977 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Mar 17, 2008 |
| Last updated in NPPES | Feb 29, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Geriatric Medicine Primary | 207RG0300X | ME 100677 | FL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 863 |
|---|---|
| Services billed | 6,400 across 38 procedure codes |
| Paid by Medicare | $420,117 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14,179 · 29,638 30-day fills |
|---|---|
| Patients | 989 |
| Total drug cost | $1,312,404 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Geriatric Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- HCA Florida St Petersburg HospitalSaint Petersburg, FL
- Morton Plant HospitalClearwater, FL
- Orlando Health Bayfront HospitalSaint Petersburg, FL
- St Anthonys HospitalSaint Petersburg, FL
- St Josephs HospitalTampa, FL
Other facilities
- Baycare Home Care IncHome health agency · Largo, FL
- Gulfside Home Health LLCHome health agency · Land O Lakes, FL
- Instruments for Hope LLCHome health agency · Largo, FL
- Medical Services of America Home HealthHome health agency · Clearwater, FL
- Prohealth Home Health Services IncHome health agency · Saint Petersburg, FL
- Suncoast HospiceHospice · Palm Harbor, FL
- Encompass Health Rehabilitation Hospital of St PetInpatient rehabilitation facility · Saint Petersburg, FL
- Marion and Bernard L Samson Nursing CenterNursing home · Saint Petersburg, FL
- Springs at Boca Ciega BayNursing home · South Pasadena, FL
Industry payments (Open Payments)
- 2025$342.85 · 16 payments from 10 companies
- 2024$419.18 · 18 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $69.76 | 4 |
| Glaxosmithkline, LLC. | $56.05 | 2 |
| Novartis Pharmaceuticals Corporation | $54.36 | 2 |
| Novo Nordisk Inc | $44.32 | 2 |
| Insmed, Inc. | $27.36 | 1 |
What the 2025 payments were for
- Food and Beverage$342.85 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Geriatric Medicine providers in Saint Petersburg
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All Internal Medicine, Geriatric Medicine providers in Florida →