Colleen Christmas, M.D.
NPI 1013968114ActiveIndividual· Internal Medicine, Geriatric Medicine· Baltimore, MD
Internal Medicine, Geriatric Medicine (M.D.) in Baltimore, Maryland, trained at University of Connecticut School of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $156,447 for 1,448 claims, against $37,971 paid for services in 2024.
Overview
| NPI | 1013968114 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 13, 2006 |
| Last updated in NPPES | Jan 31, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Geriatric Medicine Primary | 207RG0300X | D51185 | 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 - Internal Medicine (AZ); Practitioner - Internal Medicine (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 287 |
|---|---|
| Services billed | 691 across 26 procedure codes |
| Paid by Medicare | $37,971 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,448 · 3,487 30-day fills |
|---|---|
| Patients | 148 |
| Total drug cost | $156,447 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Connecticut School of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Geriatric Medicine |
Medical group
- Johns Hopkins UniversityBaltimore, MD · 2,909 clinicians
Hospital affiliations
- Johns Hopkins Bayview Medical CenterBaltimore, MD
- Johns Hopkins Hospital, theBaltimore, MD
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 87 geriatricians in Baltimore · All geriatricians in Maryland