DR. KAREN G.M. SOKOLOV M.D.
NPI 1932439080
Radiology - Radiation Oncology in Burbank, CA

Q: What is Karen Sokolov's NPI number?

The NPI number for Karen Sokolov is 1932439080. It was assigned to this individual provider in the NPPES registry on January 12, 2010. The provider is also known as Dr. Karen Galia Muhtar M.D..

Q: What is Karen Sokolov's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Q: When was this NPI record last updated?

The NPPES record for Karen Sokolov was last updated on December 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 12, 2010PECOS EnrolledAccepts Medicare Assignment

99.12/100

CMS Quality Rating

181 S BUENA VISTA ST, BURBANK, CA 91505(818) 847-3444(818) 847-3499 Get Directions Write a Review

NPPES record last updated: December 14, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 14, 2025, Nov 12, 2020, Sep 4, 2018 (3 updates tracked since 2018).

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About Dr. Karen G.m. Sokolov M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KAREN G.M. SOKOLOV M.D. (NPI 1932439080) is an individual radiation oncology provider in Burbank, California, licensed in California (A100091) and active in the NPI registry since January 2010. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2005).

NPPES Registry Identity

NPI1932439080

Entity TypeIndividualFemale

Primary Taxonomy2085R0001X

Provider Legal NameDR. KAREN G.M. SOKOLOVCredential: M.D.

Location Address181 S BUENA VISTA STBurbank, CA 91505-4504

Mailing AddressPo Box 512185Los Angeles, CA 90051-0185

Phone(818) 847-3444

Fax(818) 847-3499

Sole ProprietorNo

Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2005

Enumeration DateJanuary 12, 2010

Last NPPES UpdateDecember 14, 20253 updates tracked since enumeration

NPPES CertifiedDecember 14, 2025

✔ NPI 1932439080 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

License✔ Licensed in CA · A100091

Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

181 S BUENA VISTA ST, Burbank, CA 91505

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Other Names 1

Former Name (1)Dr. Karen Galia Muhtar M.d.

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Karen G.m. Sokolov M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4981728920

PECOS Enrollment IDI20100827000910

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Karen Sokolov reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

County Of Los Angeles

2.8 mi

Public Health, State or Local

5300 TUJUNGA AVE
North Hollywood, CA 91601

Reassigned Medicare billing, California enrollment
1,939 clinicians in this Medicare group

NPI 1386838217 (818) 766-3982

City Of Hope Medical Foundation

21 mi

Hematology & Oncology

1500 DUARTE RD
Duarte, CA 91010

Reassigned Medicare billing, California enrollment
1,335 clinicians in this Medicare group

NPI 1871886366 (626) 256-4673

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 11

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ct guidance for insertion of radiation therapy fields 77014

CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.

544 services96 patients

Calculation of radiation therapy dose 77300

Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.

108 services25 patients

Radiation treatment management, 5 treatment sessions 77427

Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.

107 services38 patients

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

This procedure involves collecting necessary data to plan the best radiation treatment. It may cover 3 or more areas or any area requiring special attention. Data collection includes imaging scans and tests to understand the disease's extent and to tailor a precise, effective treatment plan.

59 services38 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

56 services41 patients

Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 77280

This procedure involves gathering essential information to create the best radiation treatment plan for a specific area. It includes scanning the treatment area and using this data to calculate the precise dose of radiation needed to target the disease effectively, while sparing healthy tissue.

32 services28 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91505 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$187.60 typical visit price

range $62.96 – $187.60

Typical copayment $46.90 (range $15.74 – $46.90)

Most-billed visit code 99205

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

99.12/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

85.23

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 16

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HELEN ZADOURIAN

Nurse Practitioner (Family)

181 S BUENA VISTA ST, 3 RD FLOOR
BURBANK, CA 91505

Los Angeles County (818) 847-4431

EDWIN LAWRENCE JACOBS M.D.

Internal Medicine (Hematology & Oncology)

181 S BUENA VISTA ST, 4RTH FLOOR
BURBANK, CA 91505

Los Angeles County (818) 840-0921

MILES REUBEN PICUS MS, CGC

Genetic Counselor, MS

181 S BUENA VISTA ST
BURBANK, CA 91505

Los Angeles County (818) 748-4748

GREGG ARDEN OLSEN M.D.

Internal Medicine (Hematology & Oncology)

181 S BUENA VISTA ST, 4RTH FLOOR
BURBANK, CA 91505

Los Angeles County (818) 840-0921

DAIANA BUCIO MS

Genetic Counselor, MS

181 S BUENA VISTA ST
BURBANK, CA 91505

Los Angeles County (818) 748-4748

EAST VALLEY HEMATOLOGY ONCOLOGY MEDICAL GROUP

Internal Medicine (Hematology & Oncology)

181 S BUENA VISTA ST, 4RTH FLOOR
BURBANK, CA 91505

Los Angeles County (818) 840-0921

DR. ORA GORDON M.D.

Medical Genetics (Clinical Genetics (M.D.))

181 S BUENA VISTA ST
BURBANK, CA 91505

Los Angeles County (818) 748-4748

MAURICE JULIAN BERKOWITZ M.D.

Internal Medicine (Hematology & Oncology)

181 S BUENA VISTA ST, 4RTH FLOOR
BURBANK, CA 91505

Los Angeles County (818) 840-0921

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen Sokolov's NPI number?

The NPI number for Karen Sokolov is 1932439080. It was assigned to this individual provider in the NPPES registry on January 12, 2010. The provider is also known as Dr. Karen Galia Muhtar M.D..

Where is Karen Sokolov located?

Karen Sokolov practices at 181 S Buena Vista St, Burbank, CA 91505. The listed phone number is (818) 847-3444.

What is Karen Sokolov's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Karen Sokolov enrolled in Medicare?

Yes. Karen Sokolov is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Karen Sokolov's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Sokolov reassigns Medicare benefits to 2 organizations: County Of Los Angeles (North Hollywood, CA) and City Of Hope Medical Foundation (Duarte, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karen Sokolov's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Karen Sokolov was last updated on December 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.