Manlio S. Hernandez-Castillo, MD

Medicare activity in 2024

Official CMS public-use data for Manlio S. Hernandez-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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)786 services
2. Hospital discharge day management, more than 30 minutes (99239)181 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)176 services
4. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)22 services
5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)18 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%
• Anxiety50%
• Diabetes48%
• Heart failure48%

Hospitals where Manlio S. Hernandez-Castillo works

Medicare's Facility Affiliation Data lists Manlio S. Hernandez-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.

• Jerold Phelps Community HospitalGarberville, CA · Critical Access Hospital · Emergency services: not listed by Medicare · CCN 051309
• Mad River Community HospitalArcata, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050028
• Providence St Joseph HospitalEureka, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050006

Practice locations

Addresses where Manlio S. Hernandez-Castillo is enrolled with Medicare (CMS data updated October 2, 2026).

• 2700 Dolbeer StEureka, CA 95501 (707) 445‑8121

Group practices

Medicare enrollment lists Manlio S. Hernandez-Castillo as a member of this group (CMS data updated October 2, 2026).

• Providence Medical Foundation1,466 clinicians in the group

Specialties

• Hospitalistprimary

Find other Hospitalist doctors in California →

Other hospitalists in Eureka

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

• Snehamayi Ramayanam, MD
• Selene G. Wheless, DO
• Sean E. Purtell, MD
• Lisa M. Crabtree, DO
• Mustafa F. Douglas, MD
• Manuel D. Lewis, DO
• Luiza Mnatsakanyan, DO
• Abdul S. Abdali, MD

All hospitalists in Eureka →

Other clinicians in Providence Medical Foundation

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

• Marisha E. Chilcott, MD
• Elizabeth S. Kozak, NP
• Arman Sheibanikia, MD
• Jessica M. Chan, MD
• Harikrishna J. Makani, MD
• Robin F. Fraser, PA

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