Amber L. Hertz-Tang, MD
NPI 1750700076ActiveIndividual· Internal Medicine, Nephrology· Portland, OR
Internal Medicine, Nephrology (MD) in Portland, Oregon, trained at University of Wisconsin School of Medicine (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $264,318 for 1,563 claims, against $129,867 paid for services in 2024.
Overview
| NPI | 1750700076 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 15, 2014 |
| Last updated in NPPES | Sep 25, 2025 |
| Certified by provider | Sep 25, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD201408 | OR |
| Internal Medicine, Nephrology | 207RN0300X | MD61053860 | WA |
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 (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 366 |
|---|---|
| Services billed | 1,972 across 27 procedure codes |
| Paid by Medicare | $129,867 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,563 · 3,794 30-day fills |
|---|---|
| Patients | 398 |
| Total drug cost | $264,318 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Northwest Renal Clinic IncPortland, OR · 40 clinicians
Hospital affiliations
- Columbia Memorial HospitalAstoria, OR
- Hillsboro Medical CenterHillsboro, OR
- Ocean Beach HospitalIlwaco, WA
- Ohsu Hospital and ClinicsPortland, OR
- Providence St Vincent Medical CenterPortland, OR
Other facilities
- Fmc Scholls FerryDialysis facility · Portland, OR
- Pnrs BeavertonDialysis facility · Beaverton, OR
- Pnrs Columbia River the DallesDialysis facility · The Dalles, OR
- Pnrs Raines DialysisDialysis facility · Forest Grove, OR
- Pnrs-North Coast Dialysis ClinicDialysis facility · Astoria, OR
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 83 nephrologists in Portland · All nephrologists in Oregon