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Martin Diagnostic Clinic

We Listen, We Care, Because It's Our Family Taking Care of Yours

Meet Dr. Dixon

About Us

Our clinic began in Tomball in 1976 when Dr. Earl F Martin (then USAF Major Martin) completed his tour in the Air Force and moved to Tomball.

He was in solo practice until 2003 when his son Dr. Earl E Martin (Dr. Butch) joined him.  Since then our family has been taking care of families of all ages.

Our services include General Family Medicine, sleep medicine, in office procedures, and FAA exams (class I, II, III and basic med).

We also have a robust clinical research program partnered with DM clinical research.  Our works have been published in the New England Journal of Medicine for the high dose polyvalent flu vaccine, a study that changed the standard of care for flu vaccine in people  age 65 and older.  We have studies running the spectrum of diabetes, hypertension, osteoarthritis, and many vaccines including a COVID 19 vaccine.

For those who need it, on site blood draws from Quest Labs is available as well.

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Aside from general Family Medicine services, we also provide the following:


For Class I, II and III exams please fill out the Medxpress form online prior to your visit.  Starting Sept 2021 our Conroe locaton will be open Tuesday and Thursday afternoons 1-5pm.

Basic Med applicants can print your form and bring it to your visit.  for more information about basic med and if you qualify, click here

Directions to Conroe location (fly or drive).

Lab Services

Unfortuantely lab services will not longer be available as QUEST has left our building.  Lab is available 1 block away from our clinic.  It is possible that lab services will be available again in the future at our site.

Clinical Research

We have partnered with DM clinical research to provide various research studies.  

Studies vary from short (1 week) to long (5 years) and cover a vast array of conditions (Diabetes, HTN, GERD, COVID19, osteoarthritis, mechanical devices, etc).

Most studies provide financial compensation for the subjects.  And all studies provide the  medications and lab work for free.

Blood Samples
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Patient Info

Insurance Policy

Nearly all major insurance plans accepted

We accept almost all commercial insurance plans and medicare.  Some medicare advantage plans accepted.  We do not accept medicaid as a primary payer.  For information about your specific plan acceptance, please call and speak with a staff member.

Contact us

Opening Hours

Monday-Friday: 8 am to 4:30 pm

Saturday: Closed

Sunday: Closed

Tomball Location

710 Lawrence St Tomball TX 77375

Conroe Location

5260 Central Parkway Hangar #14 Conroe TX

(p) 281-351-7155

(f)  281-290-9579


(for appointments please call )

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