Primary & Preventive Care

Take the next step toward lasting health

Compassionate, evidence-based primary care in the heart of Lancaster. Dr. Russell M. Greif partners with you to prevent illness, manage chronic conditions, and build a foundation for wellness that lasts a lifetime.

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Osteopathic Physician

Lancaster

Community Practice

Full

Preventive Care

Medical office interior with natural light

About the Practice

Care that listens before it treats

Professional portrait of Dr. Greif in clinical setting

A physician who sees the whole person

Dr. Russell M. Greif is a board-certified osteopathic physician practicing in Lancaster, California. His approach combines the comprehensive perspective of osteopathic medicine with the latest in evidence-based primary care.

At his practice on 15th Street West, Dr. Greif focuses on building long-term relationships with patients — understanding their histories, their goals, and the unique factors that shape their health. Whether you need routine preventive care, management of a chronic condition, or guidance on a new health concern, every visit is an opportunity to move forward with clarity.

Osteopathic Medical Doctor (DO)
Primary care & preventive medicine
Chronic disease management
Patient-centered, relationship-based care

Services

Comprehensive care for every stage of life

From annual check-ups to ongoing management of complex conditions, our practice covers the full spectrum of adult primary care.

Preventive Medicine

Annual wellness exams, immunizations, cancer screenings, and lab work — designed to catch issues early and keep you on track.

Chronic Condition Management

Coordinated care for diabetes, hypertension, asthma, thyroid disorders, and other long-term conditions — with plans that adapt as you do.

Adult Primary Care

Routine visits for new and existing patients — acute illness, minor injuries, referral coordination, and ongoing health guidance.

Diagnostic Services

On-site lab testing, EKG, and diagnostic evaluations to support accurate diagnosis and informed treatment decisions.

Specialty Referrals

When you need a specialist, we coordinate the referral — ensuring continuity of care and clear communication between providers.

Wellness & Lifestyle

Practical guidance on nutrition, weight management, stress reduction, and sleep — because prevention starts with daily habits.

Our Approach

Healthcare built on partnership

We believe the best outcomes come from a genuine collaboration between physician and patient — grounded in trust and clear communication.

Listen First

Every visit begins with your story. We take the time to understand your symptoms, your concerns, and what health means to you — because the right diagnosis starts with truly hearing you.

Explain Clearly

Medical jargon has no place here. We translate findings into plain language so you understand your condition, your options, and the reasoning behind every recommendation.

Treat the Whole Person

As an osteopathic physician, Dr. Greif considers how your body's systems connect — not just the symptom in front of you, but the patterns that may be driving it.

Walk Forward Together

Care doesn't end at the exam table. We follow up, adjust plans as needed, and stay with you through every phase — because your health is a journey, not a single visit.

Schedule a Visit

Your health is worth the conversation

New patients are welcome. Call us to schedule an appointment or ask any questions about our services.

(661) 726-6490

44241 15th St W, Lancaster, CA 93534-4037