Giancarlo Pasquale Dimassa, MD
Giancarlo Pasquale Dimassa is an Emergency Medicine specialist based in Pasadena, CA with over 25 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
With over 25 years in emergency medicine, Giancarlo Pasquale Dimassa, MD is a long-established emergency medicine physician in Pasadena. He graduated from University of California, Geffen School of Medicine in 2001 and has 25+ years of clinical experience. He regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data). CMS MIPS quality score: 94.63/100 (2023).
At a glance
- Uses generic medications more than 27% of reporting doctors in California
- Federal MIPS score higher than 80% of MIPS-scored doctors in California
- Virtual visits available — no app or travel required
Older · 318dNPPES updated 2025-07-10 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
817 S Madison Ave, Pasadena, CA 91106-4404
How Does This Doctor Compare?
Based on Medicare data, this doctor scores better than 80% of doctors in California on federal quality measures, favors affordable generic drugs over brand-name ones.
MIPS Score
202394.63/100
California avg: 78.6 · US avg: 83.6
✓ Higher than most doctors nationally(+11 pts)
Better than 80% of MIPS-scored doctors in CaliforniaHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better8.93%
California avg: 5.2 · US avg: 5.1
⚠ Lower than most doctors nationally(+3.8 pts)
8.93% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better81.8%
California avg: 83.3 · US avg: 82.8
⚠ Lower than most doctors nationally(-1 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
572
Unique beneficiaries
High volumePrescription Recipients
313
Patients prescribed
Prescriptions Written
515
Total claims
Total Medicare drug cost: $68k
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, High Cholesterol, and Arthritis.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+6%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+17%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+12%) — a focus area for this doctor
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+8%) — a focus area for this doctor
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+16%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2001
David Geffen School of Medicine at Ucla
Board certified · Jul 9, 2025
Self-reported via NPPES
25 years in practice
Experienced
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Taxonomy: 207P00000X
Education & Training
University of California, Geffen School of Medicine (Class of 2001)
Primary hospital affiliation: Long-term
CMS Certification Number: 192010
View hospital on Medicare Care CompareVirtual Emergency Medicine Care With Giancarlo Pasquale Dimassa
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Giancarlo Pasquale Dimassa for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Pasadena 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 Giancarlo Pasquale Dimassa
Dr. Dimassa is listed as active in the NPI registry with telehealth listed in Pasadena, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (310) 753-0885.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Giancarlo Pasquale Dimassa
Practice Location
817 S Madison Ave, Pasadena, CA 91106-4404
Mailing Address
817 S Madison Ave, Pasadena, CA 91106-4404
This is a provider directory. Contact the office directly to schedule appointments.
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