Maria C. Gonzalez - Mayda, MD

Medicare activity in 2024

Official CMS public-use data for Maria C. Gonzalez - Mayda, 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. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)66 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)42 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)21 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%
• Arthritis70%
• High cholesterol65%
• Anxiety34%
• Depression33%
• Diabetes31%

Hospitals where Maria C. Gonzalez - Mayda works

Medicare's Facility Affiliation Data lists Maria C. Gonzalez - Mayda 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.

• Barnes Jewish HospitalSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260032
• Memorial HospitalBelleville, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140185

Practice locations

Addresses where Maria C. Gonzalez - Mayda is enrolled with Medicare (CMS data updated October 2, 2026).

• 1 Village Square Shop CtrHazelwood, MO 63042 (314) 362‑3500
• 4921 Parkview PlSaint Louis, MO 63110

Group practices

Medicare enrollment lists Maria C. Gonzalez - Mayda as a member of this group (CMS data updated October 2, 2026).

• Washington University3,029 clinicians in the group

Specialties

• Rheumatologyprimary
• Internal Medicinealso

Find other Rheumatology doctors in Missouri →

Other rheumatologists in Missouri

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

• Amy S. Markey, MD
• Amjad Roumany, MD
• Norman J. Simon, DO
• Katherine K. Temprano, MD
• Amrita Bath, MD
• Robert W. Jackson, DO
• Christine T. Pham, MD
• Vijay Kannuthurai, MD

All rheumatologists in Missouri →

Other clinicians in Washington University

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

• David Callahan, MD
• Kyle B. Womack, MD
• Cheuk Ho Jeffrey Choi, MD
• Zhen Ren, MD
• Mary E. Flanagan, NP
• Eva M. Aagaard, 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