Donaldo M. Hernandez, MD

Medicare activity in 2024

Official CMS public-use data for Donaldo M. Hernandez, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)459 services
2. Hospital discharge day management, more than 30 minutes (99239)102 services
3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)60 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)39 services
5. Critical care, first 30-74 minutes (99291)23 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%
• Arthritis50%
• Chronic kidney disease50%
• Atrial fibrillation48%
• Heart failure44%

Hospitals where Donaldo M. Hernandez works

Medicare's Facility Affiliation Data lists Donaldo M. Hernandez 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.

• Dominican HospitalSanta Cruz, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050242

Practice locations

Addresses where Donaldo M. Hernandez is enrolled with Medicare (CMS data updated October 2, 2026).

• 1661 Soquel Dr, Suite DSanta Cruz, CA 95065 (831) 460‑6041

Group practices

Medicare enrollment lists Donaldo M. Hernandez as a member of this group (CMS data updated October 2, 2026).

• Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

• Hospitalistprimary

Find other Hospitalist doctors in California →

Other hospitalists in Santa Cruz

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

• Sabrina A. Struve, MD
• Glenn P. Shields, MD
• Elisa E. Washburn, DO
• Eugene Senda, MD
• Sarah M. Albert, DO
• Wendi A. Knapp, MD
• Scott Drew, DO
• Richard T. Hamner, MD

All hospitalists in Santa Cruz →

Other clinicians in Sutter Bay Medical Foundation

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

• Grace S. Zhang, MD
• Anh Q. Phung, PA
• Robert B. Chu, PT
• Bianca E. Hebert, PA
• Tuan Duong, PA
• Nicole J. Hong, 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