Mary A. Santiago, MD

Medicare activity in 2024

Official CMS public-use data for Mary A. Santiago, 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)520 services
2. Injection, dexamethasone sodium phosphate, 1 mg (J1100)266 services
3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)168 services
4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)123 services
5. Detection test by immunoassay with direct visual observation for influenza virus (87804)100 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%
• Diabetes31%
• Ischemic heart disease30%
• Anxiety27%

Hospitals where Mary A. Santiago works

Medicare's Facility Affiliation Data lists Mary A. Santiago 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.

• Houston Methodist West HospitalHouston, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 670077
• Memorial Hermann Katy HospitalKaty, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · CCN 450847
• Memorial Hermann Memorial City HospitalHouston, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · CCN 450610

Practice locations

Addresses where Mary A. Santiago is enrolled with Medicare (CMS data updated October 2, 2026).

• 1450 W Grand Pkwy S, Suite MKaty, TX 77494 (832) 437‑8467
• 7629 Tiki DrFulshear, TX 77441 (281) 346‑0018

Group practices

Medicare enrollment lists Mary A. Santiago as a member of this group (CMS data updated October 2, 2026).

• Heidi Schultz, M.D., P.A.7 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Texas →

Other family doctors in Katy

Clinicians with the same Medicare primary specialty in Katy, TX — not a recommendation.

• Chuan-Li Fan, DO
• Jaime Cazares, MD
• Noor Alzarka, MD
• Yasir Anzar, MD
• Ngoc Khanh T. Phan, DO
• Silvia G. Los, MD
• Zainab H. Soumahoro, MD
• Ramya Bhattaru, DO

All family doctors in Katy →

Other clinicians in Heidi Schultz, M.D., P.A.

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

• Sulbha M. Shelare, PA
• Prativa N. Bhandari, NP
• Mary K. Armitage
• Adeel Z. Qureshi, MD
• Patrick B. Coate, MD
• Jyoti Aryal

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