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Our Doctors

All of our doctors are board certified and held to the most rigorous credentialing and medical quality review standards set by NCQA. National Committee for Quality Assurance.

We believe the best medical results in health care management are achieved and maintained by use of a Primary Care Physician [PCP].

Many health Plans require central case management by a PCP. We subscribe to this philosophy and believe it results in better care for your family. For more information on Family Physicians, please go to the AAFP web site or AOA, American Osteopathic Association, web site. www.osteopathic.org

Please select a Primary Care Physician, if you have not already done so by calling your health plan. If you need assistance in selecting a Primary Care Physician, our member services department at 619-660-6212 is available to answer any questions you may have regarding information concerning physicians’ credentials and other services provided by Encompass Family Physicians Medical Group.

M.D.s / D.O.s what is the difference?

A number of our doctors are D.O.s if you're like most people, you've been going to a doctor since you were born and perhaps didn't know if you were seeing a D.O. (osteopathic physician) or an M.D. (allopathic physician). You may not even be aware that there are two types of complete physicians in the United States.

The fact is that both D.O.s and M.D.s are fully qualified physicians licensed to provide all medical care, perform surgery, and prescribe medication. Is there any difference between these two kinds of doctors? Yes, and No...

D.O.s bring something extra to medicine

Osteopathic manipulative treatment (OMT) is incorporated in the training and practice of osteopathic physicians. With OMT, osteopathic physicians use their hands to diagnose injury and illness and to encourage your body’s natural tendency toward good health. By combining all available medical procedures with OMT, D.O.s offer their patients the most comprehensive care available in medicine today.

All of our D.O.s are Board Certified in Family and or General Practice by the American Osteopathic Association. Visit their web site to learn more at www.osteopathic.org or at www.aafp.org

What is a Physician Assistant

Physician assistants (PA.s) are highly skilled health practitioners who work with physicians to provide needed patient care services. The quality and value of the services they provide is well recognized and they are highly sought after by physician and institutional employers in virtually all medical and surgical specialties and settings.

Our Physicians: Ready to serve you close to where you live or work.

Please see map of our office locations or click on a photo below.

Terry L. Winegar, M.D. Terry L. Winegar, M.D.
President, EFPMG
255 W. Washington Ave.
El Cajon, CA 92020
619-444-4723 Fax
Hanid Audish, D.O. Hanid Audish, D.O.
Glenn D. D’Arpa, D.O.
Bryan J. Fox, M.D.
Merilee Summerfield, PA-C
10225 Austin Dr., Suite 101
Spring Valley, CA 91978
619-660-0296 Fax
Glenn D. D’Arpa, D.O.
Bryan J. Fox, M.D. Merilee Summerfield, PA-C
G. David Gibson, M.D. G. David Gibson, M.D.
8875 La Mesa Blvd.
La Mesa, CA 91941
619-667-2688 Fax
Dan Hiser, M.D.
6719 Alvarado Road Suite 203
San Diego, CA 92120
619-583-5372 Fax
Dan Hiser, M.D.
Michael Jon Feinstein, D.O. Michael Jon Feinstein, D.O.
Steve Hernandez, PA.-C
Center for Family Health
6280 Jackson Drive, Suite 8
San Diego, CA 92119-3493
619-461-8662 Fax
Steve Hernandez, PA.-C
John G. Lockie, M.D. Robert B. Lajvardi, M.D.
John G. Lockie, M.D.
7051 A;vardo Rd. Suite 200
La Mesa, CA 91942
(619) 460-7775
(619) 303-0534 Fax
Robert B. Lajvardi, M.D.
Edward Sheldon, M.D. Edward Sheldon, M.D.
Gabriel Gil, M.D.
Lomita Family Practice, 909 Cardiff
San Diego, CA 92114
619-465-6708 Fax
Gabriel Gil, M.D.
Scott Greer, M.D. Scott Greer, M.D.
Center for Family Health
6280 Jackson Drive, Suite 4
San Diego, CA 92119-3493
619-461-8738 Fax
Ellie Toulouie, M.D.
5358 Jackson Drive
La Mesa, CA 91942
Ellie Toulouie, M.D.
Ramiz N. Elias, M.D. Ramiz N. Elias, M.D.
7695 Cardinal Court, Suite 370
San Diego, CA 92123
Edward L. Esteb, M.D.
Larry Marshal Clinic
12517 Lakeshore Drive
Lakeside, CA 92040-3103
Edward L. Esteb, M.D.


Encompass Family Physicians Medical Group and its corporate sister organization Encompass Medical Group also provide access to the following Independent Practice Affiliates IPA which includes the following Primary Care Physicians as well as over 68 specialists.


When calling to schedule an appointment, please have as much information possible regarding your medical condition so that we may best serve your medical needs. Same-day appointments are arranged based on urgency and availability.

Please plan to arrive 30 minutes early to complete the registration process if it will be your first appointment or if you have new insurance information that needs to be updated. If you must cancel an appointment, please notify your doctor as soon as possible, as to be considerate of others who may need the appointment time.