Calvin K. Kwong, M.D.
NPI 1720406119ActiveIndividual· Internal Medicine, Interventional Cardiology· San Francisco, CA
Internal Medicine, Interventional Cardiology (M.D.) with North East Medical Services and 1 other group, practicing in San Francisco, California. Their prescriptions cost Medicare Part D more than their services did: $408,098 for 1,414 claims, against $140,003 paid for services in 2024. Pfizer Inc. was the largest of 29 companies reporting payments in 2025, $3,459 in all, mostly food and beverage. Lists Ahmc Seton Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1720406119 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 2, 2014 |
| Last updated in NPPES | Sep 7, 2023 |
| Certified by provider | Sep 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | A139761 | CA |
| Internal Medicine | 207R00000X | A139761 | CA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | A139761 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 463 |
|---|---|
| Services billed | 1,664 across 47 procedure codes |
| Paid by Medicare | $140,003 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,414 · 3,652 30-day fills |
|---|---|
| Patients | 273 |
| Total drug cost | $408,098 |
| Generic share | 75% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Internal Medicine |
Medical groups
- North East Medical ServicesSouth San Francisco, CA · 143 clinicians
- Cardiovascular Medical GroupSan Francisco, CA · 8 clinicians
Hospital affiliations
- Ahmc Seton Medical CenterDaly City, CA
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA
- Peninsula Medical CenterBurlingame, CA
- UCSF Health Saint Francis HospitalSan Francisco, CA
- UCSF Health St. Mary's HospitalSan Francisco, CA
Industry payments (Open Payments)
- 2025$3,459 · 130 payments from 29 companies
- 2024$3,580 · 165 payments from 25 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $309.22 | 15 |
| Astrazeneca Pharmaceuticals LP | $276.58 | 8 |
| Shockwave Medical, Inc | $276.27 | 5 |
| Amgen Inc. | $206.84 | 9 |
| Novartis Pharmaceuticals Corporation | $203.40 | 8 |
What the 2025 payments were for
- Food and Beverage$3,459 · 130 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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