Rena Ruiyu Xian, MD
NPI 1750525325ActiveIndividual· Pathology, Anatomic Pathology & Clinical Pathology· Baltimore, MD
Pathology, Anatomic Pathology & Clinical Pathology (MD) with Johns Hopkins University and 1 other group, practicing in Baltimore, Maryland. Medicare paid $27,100 for services to 352 patients in 2024. Roche Diagnostics International Ltd was the largest of 2 companies reporting payments in 2025, $120.55 in all, mostly food and beverage. Lists Johns Hopkins Bayview Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1750525325 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 28, 2009 |
| Last updated in NPPES | Mar 30, 2023 |
| Certified by provider | Mar 30, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pathology, Anatomic Pathology & Clinical Pathology Primary | 207ZP0102X | D84801 | MD |
| Pathology, Clinical Pathology/Laboratory Medicine | 207ZP0105X | MT194780 | 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 - Pathology (DC); Practitioner - Pathology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 352 |
|---|---|
| Services billed | 966 across 14 procedure codes |
| Paid by Medicare | $27,100 |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Pathology |
Medical groups
- Johns Hopkins UniversityBaltimore, MD · 2,909 clinicians
- Johns Hopkins UniversityBaltimore, MD · 713 clinicians
Hospital affiliations
- Johns Hopkins Bayview Medical CenterBaltimore, MD
- Johns Hopkins Hospital, theBaltimore, MD
- Sibley Memorial HospitalWashington, DC
- Suburban HospitalBethesda, MD
Industry payments (Open Payments)
- 2025$120.55 · 2 payments from 2 companies
- 2024$1,660 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Roche Diagnostics International Ltd | $100.91 | 1 |
| Ani Pharmaceuticals, Inc. | $19.64 | 1 |
What the 2025 payments were for
- Food and Beverage$120.55 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 177 pathologists in Baltimore · All pathologists in Maryland