Charlotte Y. Kim, MD

Medicare activity in 2024

Official CMS public-use data for Charlotte Y. Kim, 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. Intra-fraction localization and tracking of target or patient motion during delivery of radiation therapy (eg,3d positional tracking, gating, 3d surface tracking), each fraction of treatment (G6017)987 services
2. Ct guidance for insertion of radiation therapy fields (77014)920 services
3. Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)570 services
4. Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev (G6012)558 services
5. Calculation of radiation therapy dose (77300)363 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).

• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
• High cholesterol64%
• High blood pressure62%
• Arthritis35%
• Anxiety22%
• Diabetes19%

Hospitals where Charlotte Y. Kim works

Medicare's Facility Affiliation Data lists Charlotte Y. Kim 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 Charlotte Y. Kim is enrolled with Medicare (CMS data updated October 2, 2026).

• 1575 Soquel DrSanta Cruz, CA 95065
• 550 S Green Valley RdWatsonville, CA 95076 (831) 458‑5865
• 795 El Camino RealPalo Alto, CA 94301 (415) 600‑1020

Group practices

Medicare enrollment lists Charlotte Y. Kim as a member of this group (CMS data updated October 2, 2026).

• Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

• Radiation Oncologyprimary

Find other Radiation Oncology doctors in California →

Other radiation oncologists in California

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

• Jay A. Meisel, MD
• Michael L. Dworkin, MD
• May L. Tao, MD
• Clara Y. Choi, MD
• Horatio R. Thomas, MD
• Lilia N. Loredo, MD
• Steven N. Seyedin, MD
• David C. Khan, MD

All radiation oncologists in California →

Other clinicians in Sutter Bay Medical Foundation

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

• Robert G. Amburgey, MD
• Kiran Gupta, MD
• Lynn McAlister, DO
• Yao Yao G. Pollock, MD
• Iva L. Esparza, NP
• Nicole Sata, CNM

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