Zhengjin Cao, M.D.
NPI 1861616039ActiveIndividual· Internal Medicine· Dubuque, IA
Internal Medicine (M.D.) with Iowa Physicians Clinic Medical Foundation and 1 other group, practicing in Dubuque, Iowa. Their prescriptions cost Medicare Part D more than their services did: $1,714,200 for 19,708 claims, against $177,243 paid for services in 2024. Eli Lilly and Company was the largest of 9 companies reporting payments in 2025, $786.66 in all, mostly travel and lodging. Lists Finley Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1861616039 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 12, 2007 |
| Last updated in NPPES | Apr 6, 2021 |
| Certified by provider | Apr 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 37147 | IA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 391 |
|---|---|
| Services billed | 9,424 across 122 procedure codes |
| Paid by Medicare | $177,243 |
Part D prescriptions in 2024
| Prescriptions (claims) | 19,708 · 38,924 30-day fills |
|---|---|
| Patients | 880 |
| Total drug cost | $1,714,200 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Iowa Physicians Clinic Medical FoundationDes Moines, IA · 1,246 clinicians
- Unified Therapy Services, IncDubuque, IA · 120 clinicians
Hospital affiliations
- Finley HospitalDubuque, IA
- Mercyone Dubuque Medical CenterDubuque, IA
- Midwest Medical CenterGalena, IL
Other facilities
- 24 Hour Care, LLCHome health agency · Galena, IL
- Above and Beyond Home HealthHome health agency · Monticello, IA
- In-Home Care Connection Home Health ServicesHome health agency · Moline, IL
- Unitypoint at HomeHome health agency · Dubuque, IA
- Hospice of DubuqueHospice · Dubuque, IA
- Bethany HomeNursing home · Dubuque, IA
- Hawkeye Care Center DubuqueNursing home · Asbury, IA
- Luther Manor at HillcrestNursing home · Dubuque, IA
- Stonehill Care CenterNursing home · Dubuque, IA
- Sunnycrest ManorNursing home · Dubuque, IA
Industry payments (Open Payments)
- 2025$786.66 · 12 payments from 9 companies
- 2024$147.51 · 9 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Eli Lilly and Company | $563.55 | 1 |
| Pfizer Inc. | $62.18 | 3 |
| Abbvie Inc. | $34.56 | 1 |
| Glaxosmithkline, LLC. | $34.31 | 2 |
| Astellas Pharma US Inc | $23.35 | 1 |
What the 2025 payments were for
- Travel and Lodging$563.55 · 1 payment
- Food and Beverage$223.11 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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