Karen G. Sokolov, MD

Medicare activity in 2024

Official CMS public-use data for Karen G. Sokolov, 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. Ct guidance for insertion of radiation therapy fields (77014)544 services
2. Calculation of radiation therapy dose (77300)108 services
3. Radiation treatment management, 5 treatment sessions (77427)107 services
4. Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved (77290)59 services
5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)56 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%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
• High cholesterol74%
• Arthritis59%
• Diabetes44%
• Ischemic heart disease41%

Hospitals where Karen G. Sokolov works

Medicare's Facility Affiliation Data lists Karen G. Sokolov 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.

• Providence Saint Joseph Medical CenterBurbank, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050235

Practice locations

Addresses where Karen G. Sokolov is enrolled with Medicare (CMS data updated October 2, 2026).

• 209 Fair Oaks AveSouth Pasadena, CA 91030 (626) 396‑2900

Group practices

Medicare enrollment lists Karen G. Sokolov as a member of this group (CMS data updated October 2, 2026).

• City of Hope Medical Foundation982 clinicians in the group

Specialties

• Radiation Oncologyprimary

Find other Radiation Oncology doctors in California →

Other radiation oncologists in South Pasadena

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

• Helen K. Chen, MD
• Nayana Vora, MD
• Tanuja A. Bhandari, MD
• Leslie E. Botnick, MD
• Boryana M. Eastman, MD
• Venita Williams, MD
• Garth A. Green, MD
• Jason Liu, MD

All radiation oncologists in South Pasadena →

Other clinicians in City of Hope Medical Foundation

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

• Yen Hui M. Soong, MD
• Wesley Yip, MD
• Linas J. Kazlauskas, MD
• Chandana Lall, MD
• Yuthana Kong
• Jonathan R. Young, 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