Charles Shang, MD
NPI 1104805902ActiveIndividual· Internal Medicine· Grass Valley, CA
Internal Medicine (MD) in Grass Valley, California, trained at Boston University School of Medicine (class of 1998). In 2024 Medicare paid $746,893 for 1,214 patients, and Part D covered 9,175 of their prescriptions, 89% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 4 companies reporting payments in 2025, $243.97 in all, mostly food and beverage.
Overview
| NPI | 1104805902 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 11, 2006 |
| Last updated in NPPES | Jun 16, 2023 |
| Certified by provider | Oct 14, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | L4709 | TX |
| Hospitalist | 208M00000X | 225106 | MA |
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); Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,214 |
|---|---|
| Services billed | 10,488 across 74 procedure codes |
| Paid by Medicare | $746,893 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,175 · 17,287 30-day fills |
|---|---|
| Patients | 754 |
| Total drug cost | $762,739 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Grass Valley Extended Care IncGrass Valley, CA · 3 clinicians
- Kuldip Gill M D P CLoomis, CA · 3 clinicians
Hospital affiliations
- Oroville HospitalOroville, CA
- Sierra Nevada Memorial HospitalGrass Valley, CA
- Sutter Medical Center, SacramentoSacramento, CA
- Sutter Roseville Medical CenterRoseville, CA
Other facilities
- Vacaville Ranch Post AcuteNursing home · Vacaville, CA
Industry payments (Open Payments)
- 2025$243.97 · 8 payments from 4 companies
- 2024$131.97 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $170.89 | 5 |
| Corcept Therapeutics | $27.39 | 1 |
| Azurity Pharmaceuticals, Inc. | $24.86 | 1 |
| Exact Sciences Corporation | $20.83 | 1 |
What the 2025 payments were for
- Food and Beverage$243.97 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 29 internal medicine physicians in Grass Valley · All internal medicine physicians in California