Christine Shieh, MD
NPI 1013414465ActiveIndividual· Internal Medicine, Gastroenterology· Walnut Creek, CA
Internal Medicine, Gastroenterology (MD) in Walnut Creek, California, trained at University of California, Geffen School of Medicine (class of 2018). Part D covered 224 prescriptions written in 2024, 90% of them generic. Conmed Corporation was the largest of 4 companies reporting payments in 2025, $304.96 in all, mostly food and beverage.
Overview
| NPI | 1013414465 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 11, 2018 |
| Last updated in NPPES | Jun 24, 2026 |
| Certified by provider | Jun 24, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A174339 | 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 - Gastroenterology (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 224 · 273 30-day fills |
|---|---|
| Patients | 171 |
| Total drug cost | $36,823 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- John Muir Physician NetworkPleasant Hill, CA · 494 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$304.96 · 6 payments from 4 companies
- 2024$306.59 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Conmed Corporation | $179.99 | 3 |
| Boston Scientific Corporation | $92.22 | 1 |
| Micro-Tech Endoscopy USA, Inc. | $19.08 | 1 |
| Olympus Corporation of the Americas | $13.67 | 1 |
What the 2025 payments were for
- Food and Beverage$304.96 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 41 gastroenterologists in Walnut Creek · All gastroenterologists in California