Stewart W. Mason, MD

Medicare activity in 2024

Official CMS public-use data for Stewart W. Mason, 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 low level od decision making, if using time, 20 minutes or more (99213)144 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)86 services
3. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)81 services
4. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)48 services
5. Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina (76830)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 cholesterol75%
• High blood pressure73%
• Arthritis44%
• Osteoporosis29%
• Ischemic heart disease26%
• Diabetes22%

Hospitals where Stewart W. Mason works

Medicare's Facility Affiliation Data lists Stewart W. Mason 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.

• Clovis Community Medical CenterClovis, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050492

Practice locations

Addresses where Stewart W. Mason is enrolled with Medicare (CMS data updated October 2, 2026).

• 1374 E Alluvial AveFresno, CA 93720 (559) 981‑2600
• 1865 E Alluvial Ave, Suite 102Fresno, CA 93720 (559) 981‑2600
• 2335 E Kashian LnFresno, CA 93701
• 2755 Herndon AveClovis, CA 93611 (559) 228‑4327

Group practices

Medicare enrollment lists Stewart W. Mason as a member of this group (CMS data updated October 2, 2026).

• Community Foundation Medical Group283 clinicians in the group

Specialties

• Obstetrics/Gynecologyprimary

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Fresno

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

• Fatimah Z. Fahimuddin, MD
• Monica E. Raible, MD
• Rebecca L. Evangelista, DO
• Helen S. Uong, MD
• Sandra J. Greco, MD
• Lura J. Reddington, MD
• Brian L. Morgan, MD
• Lisa A. Golik, MD

All OB-GYNs in Fresno →

Other clinicians in Community Foundation Medical Group

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

• Gloria I. Brough Stevenson, MD
• John C. Monteleone, MD
• Roger Talob, PA
• Amitasha Mann, MD
• Richard C. Holden, DO
• Jessica Stendel, NP

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