Zakwan Quwatli, MD

Medicare activity in 2024

Official CMS public-use data for Zakwan Quwatli, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)488 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)299 services
3. Test to measure expiratory airflow and volume (94010)124 services
4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)110 services
5. Critical care, first 30-74 minutes (99291)45 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• COPD62%
• Arthritis53%
• Asthma38%
• Diabetes34%

Hospitals where Zakwan Quwatli works

Medicare's Facility Affiliation Data lists Zakwan Quwatli at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• NorthBay Medical CenterFairfield, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050367
• Providence Queen of the Valley Medical CenterNapa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050009

Practice locations

Addresses where Zakwan Quwatli is enrolled with Medicare (CMS data updated October 2, 2026).

• 1000 Nut Tree RdVacaville, CA 95687 (707) 624‑7000
• 1200 B Gale Wilson BlvdFairfield, CA 94533 (707) 429‑3600
• 1860 Pennsylvania AveFairfield, CA 94533 (707) 646‑4114

Group practices

Medicare enrollment lists Zakwan Quwatli as a member of these groups (CMS data updated October 2, 2026).

• NorthBay Physicians Surgery Center, LLC324 clinicians in the group
• NorthBay Health Medical Foundation213 clinicians in the group

Specialties

• Pulmonary Diseaseprimary
• Allergy/Immunologyalso

Find other Pulmonary Disease doctors in California →

Other pulmonologists in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

• Maqbool Ahmed, MD
• Shahram Khorrami, MD
• Craig K. Arakaki, MD
• Andrew Kelada, MD
• William B. Feldman, MD
• Hayley N. Barnes, MD
• John Kim, DO
• Steven C. Wong, MD

All pulmonologists in California →

Other clinicians in NorthBay Physicians Surgery Center, LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Steven M. Garcia, MD
• Rohit H. Godbole, MD
• Mark Anthony Rivera, PT
• William A. Ankney, MD
• Elizabeth Tapen, MD
• Saned Raouf, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians