Ying Guo
NPI 1871054338ActiveIndividual· Family Medicine· Sunnyvale, CA
Family Medicine with Sutter Bay Medical Foundation, practicing in Sunnyvale, California. Their prescriptions cost Medicare Part D more than their services did: $67,583 for 1,285 claims, against $42,181 paid for services in 2024. Ars Pharmaceuticals Operations, Inc. was the largest of 4 companies reporting payments in 2025, $384.44 in all, mostly food and beverage.
Overview
| NPI | 1871054338 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 27, 2019 |
| Last updated in NPPES | Nov 3, 2022 |
| Certified by provider | Nov 3, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 20A19933 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 134 |
|---|---|
| Services billed | 498 across 27 procedure codes |
| Paid by Medicare | $42,181 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,285 · 3,214 30-day fills |
|---|---|
| Patients | 147 |
| Total drug cost | $67,583 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Other facilities
- Sutter Care at HomeHome health agency · Saratoga, CA
Industry payments (Open Payments)
- 2025$384.44 · 4 payments from 4 companies
- 2024$273.85 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ars Pharmaceuticals Operations, Inc. | $125.00 | 1 |
| Viiv Healthcare Company | $124.99 | 1 |
| Lilly USA, LLC | $116.65 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $17.80 | 1 |
What the 2025 payments were for
- Food and Beverage$384.44 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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