Leo Gabriel Maffey, M.D.

Internal Medicine

(818) 364-3031Sylmar, CA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Leo Gabriel Maffey, M.D. has been part of the Sylmar medical community since 2007 in independent practice. A University of California, Geffen School of Medicine graduate since 2004, he brings 22+ years of experience. A physician who provides long-term, comprehensive care in the office and the hospital.

At a glance

  • Prescribes opioids less than 23% of reporting doctors in California
  • Uses generic medications more than 57% of reporting doctors in California
  • Virtual visits available — no app or travel required
1 of 3,565 Internal Medicine providers in CASee all Internal Medicine in Sylmar22+ years experienceNPI since 2007

Older · 1665dNPPES updated 2021-10-14 · verify on CMS

Contact & Location

Practice Location

14445 Olive View Dr Rm 6b119-H, Sylmar, CA 91342-1437

CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.

Opioid Rx

↓ Lower = better

4.27%

California avg: 5.2 · US avg: 5.1

Higher than most doctors nationally(-0.8 pts)

4.27% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Generic Rx

↑ Higher = better

88.9%

California avg: 83.3 · US avg: 82.8

Higher than most doctors nationally(+6.1 pts)

Typical range among reporting doctors in California

How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.

Medicare Patients

11

Unique beneficiaries

Boutique practice

Prescription Recipients

447

Patients prescribed

Prescriptions Written

4,712

Total claims

Total Medicare drug cost: $278k

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.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 2004

    David Geffen School of Medicine at Ucla

  2. Board certified · Oct 13, 2021

    CMS-verified certification date

  3. 22 years in practice

    Experienced

Internal MedicineAllopathic & Osteopathic Physicians

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Taxonomy: 207R00000X

Education & Training

University of California, Geffen School of Medicine (Class of 2004)

Virtual Internal Medicine Care With Leo Gabriel Maffey

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Leo Gabriel Maffey for follow-ups, medication reviews, and ongoing care — no travel to Sylmar 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 Leo Gabriel Maffey

NPI records show Dr. Maffey as active with telehealth listed in Sylmar, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (818) 364-3031.

Verified across 3 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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