Jiangnan Wang, MD
NPI 1689680548ActiveIndividual· Internal Medicine, Cardiovascular Disease· Chino, CA
Internal Medicine, Cardiovascular Disease (MD) with Totalcare Walk in Clinic Inc, practicing in Chino, California. Their prescriptions cost Medicare Part D more than their services did: $821,968 for 6,271 claims, against $312,639 paid for services in 2024. Exact Sciences Corporation was the largest of 3 companies reporting payments in 2025, $84.97 in all, mostly food and beverage. Lists Pomona Valley Hospital Medical Center as a hospital affiliation.
Overview
| NPI | 1689680548 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 31, 2006 |
| Last updated in NPPES | Apr 18, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | A73460 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,061 |
|---|---|
| Services billed | 5,302 across 56 procedure codes |
| Paid by Medicare | $312,639 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,271 · 14,601 30-day fills |
|---|---|
| Patients | 612 |
| Total drug cost | $821,968 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Family Practice |
Medical group
- Totalcare Walk in Clinic IncColton, CA · 9 clinicians
Hospital affiliation
- Pomona Valley Hospital Medical CenterPomona, CA
Other facilities
- Cardinal Home Health CareHome health agency · Ontario, CA
- Solismed Home Health Care, Inc.Home health agency · Northridge, CA
Industry payments (Open Payments)
- 2025$84.97 · 5 payments from 3 companies
- 2024$197.10 · 6 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $51.99 | 3 |
| Bayer Healthcare Pharmaceuticals Inc. | $16.71 | 1 |
| Novo Nordisk Inc | $16.27 | 1 |
What the 2025 payments were for
- Food and Beverage$68.70 · 4 payments
- Education$16.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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