Christina Yen, M.D.
NPI 1154718922ActiveIndividual· Internal Medicine, Infectious Disease· Portland, ME
Internal Medicine, Infectious Disease (M.D.) with Mainehealth and 1 other group, practicing in Portland, Maine. Their prescriptions cost Medicare Part D more than their services did: $43,206 for 178 claims, against $15,951 paid for services in 2024. Biomerieux Inc was the largest of 3 companies reporting payments in 2025, $8,728 in all, mostly speaking and faculty fees. Lists Mainehealth Maine Medical Center as a hospital affiliation.
Overview
| NPI | 1154718922 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 20, 2015 |
| Last updated in NPPES | Nov 6, 2023 |
| Certified by provider | Nov 6, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | MD27458 | ME |
| Internal Medicine, Infectious Disease | 207RI0200X | T3220 | TX |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | MA |
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 (ME); Practitioner - Infectious Disease (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 96 |
|---|---|
| Services billed | 169 across 14 procedure codes |
| Paid by Medicare | $15,951 |
Part D prescriptions in 2024
| Prescriptions (claims) | 178 · 212 30-day fills |
|---|---|
| Patients | 66 |
| Total drug cost | $43,206 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Infectious Disease |
| Telehealth | Offers telehealth |
Medical groups
- MainehealthPortland, ME · 2,633 clinicians
- Mercy HospitalPortland, ME · 301 clinicians
Hospital affiliation
- Mainehealth Maine Medical CenterPortland, ME
Industry payments (Open Payments)
- 2025$8,728 · 5 payments from 3 companies
- 2024$1,134 · 7 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biomerieux Inc | $8,554 | 3 |
| Bone Support Inc. | $144.05 | 1 |
| Theratechnologies Inc. | $30.38 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$7,154 · 2 payments
- Travel and Lodging$1,400 · 1 payment
- Food and Beverage$174.43 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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