Mohammed S. Qayyum, MD

Medicare activity in 2024

Official CMS public-use data for Mohammed S. Qayyum, 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. Infusion, normal saline solution, 250 cc (J7050)1,952 services
2. Injection, regadenoson, 0.1 mg (J2785)964 services
3. Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries (A9555)486 services
4. Evaluation of cardiac rhythm monitor system, remote up to 30 days (93298)463 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)454 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%
• Ischemic heart disease75%
• Arthritis43%
• Heart failure41%
• Diabetes38%

Hospitals where Mohammed S. Qayyum works

Medicare's Facility Affiliation Data lists Mohammed S. Qayyum 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.

• Good Samaritan HospitalSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050380
• Hazel Hawkins Memorial HospitalHollister, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051337
• Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441

Practice locations

Addresses where Mohammed S. Qayyum is enrolled with Medicare (CMS data updated October 2, 2026).

• 2550 Samaritan Dr, Suite DSan Jose, CA 95124 (408) 610‑2001

Group practices

Medicare enrollment lists Mohammed S. Qayyum as a member of this group (CMS data updated October 2, 2026).

• Mohammed S Qayyum MD Inc4 clinicians in the group

Specialties

• Cardiovascular Disease (Cardiology)primary
• Interventional Radiologyalso

Find other Cardiovascular Disease (Cardiology) doctors in California →

Other cardiologists in San Jose

Clinicians with the same Medicare primary specialty in San Jose, CA — not a recommendation.

• Ashok Krishnaswami, MD
• Alexander C. Perino, MD
• Ngai Nguyen, MD
• Aravind Swaminathan, MD
• Kenneth W. Mahaffey, MD
• Rajesh Dash, MD
• Shinie L. Kuo, MD
• John Lien, MD

All cardiologists in San Jose →

Other clinicians in Mohammed S Qayyum MD Inc

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

• Dana M. Weisshaar, MD
• Ethan Daniels, MD
• Bharat Ravishankar, 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