Jonathan Chao, M.D.
NPI 1154611416ActiveIndividual· Internal Medicine· Palo Alto, CA
Internal Medicine (M.D.) in Palo Alto, California, trained at Jefferson Medical College of Thomas Jefferson University (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $169,582 for 2,444 claims, against $98,869 paid for services in 2024. Shockwave Medical, Inc reported $338.02 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1154611416 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 7, 2011 |
| Last updated in NPPES | May 28, 2020 |
| Certified by provider | May 28, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A128476 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 | 394 |
|---|---|
| Services billed | 942 across 32 procedure codes |
| Paid by Medicare | $98,869 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,444 · 6,312 30-day fills |
|---|---|
| Patients | 291 |
| Total drug cost | $169,582 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Hospital affiliation
- Peninsula Medical CenterBurlingame, CA
Other facilities
- Centerwell Asian American Home HealthHome health agency · Alameda, CA
- Sutter Care at HomeHome health agency · San Mateo, CA
- Sutter Care at HomeHome health agency · Saratoga, CA
Industry payments (Open Payments)
- 2025$338.02 · 3 payments from 1 company
- 2024$109.57 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Shockwave Medical, Inc | $338.02 | 3 |
What the 2025 payments were for
- Food and Beverage$338.02 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 196 internal medicine physicians in Palo Alto · All internal medicine physicians in California