Tiffany N. Castillo, MD

Medicare activity in 2024

Official CMS public-use data for Tiffany N. Castillo, 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)46 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)38 services
3. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)26 services
4. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)22 services
5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)19 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%
• Arthritis69%
• High cholesterol66%
• Diabetes38%
• Depression23%
• Chronic kidney disease21%

Hospitals where Tiffany N. Castillo works

Medicare's Facility Affiliation Data lists Tiffany N. Castillo 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.

• Santa Clara Valley Medical CenterSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050038

Practice locations

Addresses where Tiffany N. Castillo is enrolled with Medicare (CMS data updated October 2, 2026).

• 750 S Bascom Ave, Vly Hlth Cen BascomSan Jose, CA 95128 (408) 885‑5000
• 751 S Bascom Ave, Santa Clara Vly MedSan Jose, CA 95128 (408) 885‑5000

Group practices

Medicare enrollment lists Tiffany N. Castillo as a member of this group (CMS data updated October 2, 2026).

• County of Santa Clara1,022 clinicians in the group

Specialties

• Orthopedic Surgeryprimary

Find other Orthopedic Surgery doctors in California →

Other orthopedic surgeons in San Jose

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

• Nicholas C. Danford, MD
• Hannah Elsevier, MD
• Anthony J. Abene, MD
• George Partal, MD
• Amanda L. Walker, MD
• Morteza Farr, DO
• Jessica S. McBeth, MD
• Sohrab Pahlavan, MD

All orthopedic surgeons in San Jose →

Other clinicians in County of Santa Clara

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

• Phalgun Nori, MD
• Kathryn Joy, MD
• Minh-Quan Do, DO
• Mohd Jibreel, MD
• James B. Bronk, MD
• Jyoti Gupta, 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