Zakwan Quwatli, MD
NPI 1154468023ActiveIndividual· Internal Medicine, Pulmonary Disease· Sacramento, CA
Internal Medicine, Pulmonary Disease (MD) with Northbay Physicians Surgery Center, LLC and 1 other group, practicing in Sacramento, California. Their prescriptions cost Medicare Part D more than their services did: $1,182,585 for 2,381 claims, against $112,288 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 13 companies reporting payments in 2025, $944.92 in all, mostly food and beverage. Lists Northbay Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1154468023 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 31, 2007 |
| Last updated in NPPES | Oct 21, 2020 |
| Certified by provider | Oct 21, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | A121261 | CA |
| Internal Medicine, Critical Care Medicine | 207RC0200X | A121261 | 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 - Pulmonary Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 589 |
|---|---|
| Services billed | 1,262 across 25 procedure codes |
| Paid by Medicare | $112,288 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,381 · 3,947 30-day fills |
|---|---|
| Patients | 383 |
| Total drug cost | $1,182,585 |
| Generic share | 38% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Allergy/Immunology |
| Telehealth | Offers telehealth |
Medical groups
- Northbay Physicians Surgery Center, LLCFairfield, CA · 324 clinicians
- Northbay Health Medical FoundationFairfield, CA · 213 clinicians
Hospital affiliations
- Northbay Medical CenterFairfield, CA
- Providence Queen of the Valley Medical CenterNapa, CA
Industry payments (Open Payments)
- 2025$944.92 · 47 payments from 13 companies
- 2024$551.15 · 30 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $204.65 | 12 |
| Verona Pharma, Inc. | $176.37 | 4 |
| Astrazeneca Pharmaceuticals LP | $149.12 | 9 |
| United Therapeutics Corporation | $82.58 | 3 |
| Genzyme Corporation | $78.98 | 3 |
What the 2025 payments were for
- Food and Beverage$944.92 · 47 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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