Sarah Johanna Carstens, M.D.
NPI 1952506867ActiveIndividual· Internal Medicine· Phoenix, AZ
Internal Medicine (M.D.) in Phoenix, Arizona, trained at University of Arizona College of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $14,239 for 182 claims, against $1,442 paid for services in 2024. Zoll Services LLC (A/K/A Zoll Lifecor Corp) reported $19.20 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1952506867 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 19, 2007 |
| Last updated in NPPES | Aug 20, 2026 |
| Certified by provider | Aug 20, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 43273 | AZ |
| Hospitalist | 208M00000X | 43273 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 15 |
|---|---|
| Services billed | 15 across 1 procedure code |
| Paid by Medicare | $1,442 |
Part D prescriptions in 2024
| Prescriptions (claims) | 182 · 182 30-day fills |
|---|---|
| Patients | 29 |
| Total drug cost | $14,239 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Arizona College of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Internal Medicine |
Medical group
- Circle the CityPhoenix, AZ · 64 clinicians
Industry payments (Open Payments)
- 2024$19.20 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $19.20 | 1 |
What the 2024 payments were for
- Food and Beverage$19.20 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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