Kalleen S. Barham, MD
NPI 1649485053ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Newark, DE
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Christiana Care Health Services Inc, practicing in Newark, Delaware. Their prescriptions cost Medicare Part D more than their services did: $2,200,345 for 4,419 claims, against $81,266 paid for services in 2024. Sequel Med Tech, LLC was the largest of 3 companies reporting payments in 2025, $85.59 in all, mostly food and beverage. Lists Bayhealth Hospital, Sussex Campus and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1649485053 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 11, 2007 |
| Last updated in NPPES | Jun 4, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | C10005133 | DE |
| Student in an Organized Health Care Education/Training Program | 390200000X | MT182516 | PA |
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 - Endocrinology (DE) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 723 |
|---|---|
| Services billed | 1,294 across 14 procedure codes |
| Paid by Medicare | $81,266 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,419 · 11,427 30-day fills |
|---|---|
| Patients | 732 |
| Total drug cost | $2,200,345 |
| Generic share | 44% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine, Pediatric Medicine |
| Telehealth | Offers telehealth |
Medical group
- Christiana Care Health Services IncNewark, DE · 1,483 clinicians
Hospital affiliations
- Bayhealth Hospital, Sussex CampusMilford, DE
- Bayhealth Medical Center, Kent CampusDover, DE
- Beebe Medical CenterLewes, DE
- Christiana HospitalNewark, DE
- Union Hospital of Cecil CountyElkton, MD
Industry payments (Open Payments)
- 2025$85.59 · 4 payments from 3 companies
- 2024$39.74 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sequel Med Tech, LLC | $46.66 | 2 |
| Medtronic, Inc. | $19.78 | 1 |
| Abbott Laboratories | $19.15 | 1 |
What the 2025 payments were for
- Food and Beverage$85.59 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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