Anson Joseph, M.D.,
NPI 1376579391ActiveIndividual· Internal Medicine, Nephrology· Prince Frederick, MD
Internal Medicine, Nephrology (M.D.,) with Medstar Medical Group - Southern Maryland LLC, practicing in Prince Frederick, Maryland. Their prescriptions cost Medicare Part D more than their services did: $245,165 for 1,406 claims, against $148,853 paid for services in 2024. Abbott Laboratories was the largest of 5 companies reporting payments in 2025, $186.60 in all, mostly food and beverage. Lists Calverthealth Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1376579391 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., |
| Sole proprietor | Yes |
| NPI issued | Jun 23, 2006 |
| Last updated in NPPES | Aug 18, 2026 |
| Certified by provider | Aug 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | D56161 | MD |
| Internal Medicine | 207R00000X | D56161 | 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 - Nephrology (DC); Practitioner - Nephrology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 361 |
|---|---|
| Services billed | 2,295 across 30 procedure codes |
| Paid by Medicare | $148,853 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,406 · 3,637 30-day fills |
|---|---|
| Patients | 207 |
| Total drug cost | $245,165 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Medstar Medical Group - Southern Maryland LLCHollywood, MD · 245 clinicians
Hospital affiliations
- Calverthealth Medical CenterPrince Frederick, MD
- Medstar Saint Mary's HospitalLeonardtown, MD
Other facilities
- Bma - LeonardtownDialysis facility · Leonardtown, MD
- Fmc - Lexington Park DialysisDialysis facility · California, MD
- Fresenius Kidney Care Southern Maryland HomeDialysis facility · Mechanicsville, MD
- Usrc Prince FrederickDialysis facility · Prince Frederick, MD
Industry payments (Open Payments)
- 2025$186.60 · 5 payments from 5 companies
- 2024$47.44 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $127.29 | 1 |
| Astrazeneca Pharmaceuticals LP | $21.74 | 1 |
| Corcept Therapeutics | $20.60 | 1 |
| Exact Sciences Corporation | $15.31 | 1 |
| Travere Therapeutics, Inc. | $1.66 | 1 |
What the 2025 payments were for
- Food and Beverage$184.94 · 4 payments
- Education$1.66 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Nephrology providers in Prince Frederick
- 1326069238
- 1649469784
- 1972429751
- 1467436022