Isabella Geneva Chen, M.D.
Isabella Geneva Chen is a Hematology & Oncology specialist based in Ventura, CA with over 16 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: MEDICAL ONCOLOGY
Isabella Geneva Chen, M.D. specializes in internal medicine, serving patients in Ventura, CA in group practice. She graduated from Jefferson Medical College of Thomas Jefferson University in 2010 and has 16+ years of clinical experience. She regularly sees Medicare patients with hypertension, cancer, and high cholesterol (per CMS claims data). CMS MIPS quality score: 87.19/100 (2023).
At a glance
- Federal MIPS score higher than 68% of MIPS-scored doctors in California
- Virtual visits available — no app or travel required
Older · 236dNPPES updated 2025-09-29 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
300 Hillmont Ave Bldg 340, Ste 501, Ventura, CA 93003
How Does This Doctor Compare?
Based on Medicare data, this doctor has an average quality score compared to other doctors in California.
MIPS Score
202387.19/100
California avg: 78.6 · US avg: 83.6
✓ Higher than most doctors nationally(+3.6 pts)
Average range among MIPS-scored doctors in CaliforniaHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better9.96%
California avg: 5.2 · US avg: 5.1
⚠ Lower than most doctors nationally(+4.9 pts)
9.96% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better71%
California avg: 83.3 · US avg: 82.8
⚠ Lower than most doctors nationally(-11.8 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
150
Unique beneficiaries
Standard volumePrescription Recipients
89
Patients prescribed
Prescriptions Written
783
Total claims
Total Medicare drug cost: $2.73M
Percentile rankings compared against 9,360 reporting peers in California.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, Cancer, and High Cholesterol.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+1%) — a focus area for this doctor
Diseases involving abnormal cell growth with potential to spread to other body parts
US avg: 20.8%↑ More patients than average (+40%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-17%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+6%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-9%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-7%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-9%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$18 received from industry
1 transaction reported in 2018 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2018, attributed to Isabella Geneva Chen's NPI.
Patient Reviews
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2010
Sidney Kimmel Medical College at Thomas Jefferson University
Board certified · Sep 28, 2025
Self-reported via NPPES
16 years in practice
Experienced
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Taxonomy: 207RH0003X
Education & Training
Jefferson Medical College of Thomas Jefferson University (Class of 2010)
Mailing address
800 S Victoria Ave, L4615 Vchca - Physician Services, Ventura, CA 93009-0003
Differs from practice location
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 190316
View hospital on Medicare Care CompareVirtual Hematology & Oncology Care With Isabella Geneva Chen
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Isabella Geneva Chen for blood pressure monitoring, follow-up consultations, cholesterol management — no travel to Ventura required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Isabella Geneva Chen
NPI records show Dr. Chen as active with telehealth listed in Ventura, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (805) 652-6218.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2018 · CMS Physician Comparator. See Data Methodology.
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Contact Isabella Geneva Chen
Practice Location
300 Hillmont Ave Bldg 340, Ste 501, Ventura, CA 93003
Mailing Address
800 S Victoria Ave, L4615 Vchca - Physician Services, Ventura, CA 93009-0003
This is a provider directory. Contact the office directly to schedule appointments.
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