Wenchiang Han, MD

Medicare activity in 2024

Official CMS public-use data for Wenchiang Han, 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. Injection, onabotulinumtoxina, 1 unit (J0585)8,020 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)773 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)145 services
4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)144 services
5. Needle measurement of electrical activity in arm or leg muscles, complete study (95886)134 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%
• Diabetes35%
• Ischemic heart disease32%
• Chronic kidney disease29%

Hospitals where Wenchiang Han works

Medicare's Facility Affiliation Data lists Wenchiang Han 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.

• Adventist Health and RideoutMarysville, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050133
• Oroville HospitalOroville, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050030
• Sierra Nevada Memorial HospitalGrass Valley, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050150

Practice locations

Addresses where Wenchiang Han is enrolled with Medicare (CMS data updated October 2, 2026).

• 870 Shasta St, Suite 400Yuba City, CA 95991 (530) 749‑8801

Specialties

• Neurologyprimary

Find other Neurology doctors in California →

Other neurologists in California

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

• Natalie M. Guido-Estrada, MD
• Caroline A. Perry, MD
• Toni Q. Cao, MD
• Alexander L. Carlin, DO
• Michael L. Kiekhaefer, MD
• Jina L. Janavs, MD
• Brian J. Scott, MD
• Suzanne M. Bourque, MD

All neurologists in California →

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