Biography

Mack Grubb, PA-C, is a Texas native who practices adult internal medicine. He completed his physician assistant training at the University of Texas Southwestern and is board-certified by the National Commission on Certification of Physician Assistants (NCCPA).

Mr. Grubb pursued adult internal medicine because he’s fascinated by the body, loves science and has a strong desire to help people. He loves that adult internal medicine allows him to develop long-term relationships with patients and help them navigate and manage the complex healthcare environment. Internal medicine is also central to preventive medicine, which is his passion.

Mr Grubb’s favorite part about being a clinician is helping patients have a better quality of life. He believes healthcare is a partnership. He’s in the passenger’s seat and his patients are the drivers. He provides navigation and direction, but ultimately, patients hold the wheel, make the final decisions and determine where they go.

Mr. Grubb is married to his wife, who is also a PA, and together, they have five children—three girls and two boys. He enjoys spending time with family and friends, playing soccer and staying involved with his church.

Clinical interests

Internal medicine

Locations

WellMed at White Rock
Call location1-214-328-4389
Get directions 9888 Ferguson Rd Ste 120
Dallas,  TX 75228
Fax number1-214-328-4085
Office Hours
Sunday Closed
Monday 8 a.m. to 5 p.m.
Tuesday 8 a.m. to 5 p.m.
Wednesday 8 a.m. to 5 p.m.
Thursday 8 a.m. to 5 p.m.
Friday 8 a.m. to 5 p.m.
Saturday Closed

Education and credentials

Board certifications
National Commission on Certification of Physician Assistants
Masters
Univ of Texas Southwestern Medical School

Accepted insurances

We accept many major health insurance plans. Insurance plans accepted vary by doctor and can change. Please call your clinic directly to confirm what insurances are accepted.
Clinician numbers for agent use only.
BCBS (See payor website)
Humana (See payor website)
UnitedHealthcare (See payor website)
Wellcare (1366484354)

Patient Reviews

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24 Results

  • ★ ★ ★ ★ ★

    July 15, 2026

    Verfied Review

    5 out of 5 patient rating

    Follow through of previous lab results were above and beyond. Personally phoned me on a [omitted].

  • ★ ★ ★ ★ ★

    June 05, 2026

    Verfied Review

    5 out of 5 patient rating

    Great knowledge, friendly, relatable/"bed side manner". straightforward, practical input

  • ★ ★ ★ ★ ★

    April 06, 2026

    Verfied Review

    5 out of 5 patient rating

    He`s very professional, knowledgeable, and very attentive to details.

  • ★ ★ ★ ★ ★

    April 02, 2026

    Verfied Review

    5 out of 5 patient rating

    Easy to talk to and provide explanations in a realistic context

  • ★ ★ ★ ★ ★

    April 29, 2026

    Verfied Review

    5 out of 5 patient rating

    Charles Grubb, PA was very knowledgeable about my past medical record, my current conditions, and likely future medical and lifestyle recommendations. He clearly cares about his patients and his work.

  • ★ ★ ★ ★ ★

    March 05, 2026

    Verfied Review

    5 out of 5 patient rating

    Very friendly. Took time to visit with me.

  • ★ ★ ★ ★ ★

    January 19, 2026

    Verfied Review

    5 out of 5 patient rating

    He was engaged, professional and easy to talk with.

  • ★ ★ ★ ★ ★

    November 06, 2025

    Verfied Review

    5 out of 5 patient rating

    Friendly down to earth guy with a good demeanor

  • ★ ★ ★ ★ ★

    November 24, 2025

    Verfied Review

    5 out of 5 patient rating

    Thorough, interested in addressing your needs, makes you feel comfortable

  • ★ ★ ★ ★ ★

    November 03, 2025

    Verfied Review

    5 out of 5 patient rating

    Excellent PA. Always very thorough.

  • ★ ★ ★ ★ ★

    September 18, 2025

    Verfied Review

    5 out of 5 patient rating

    Dr. Grubb is one of the best doctors I have ever seen. He spends time with you to ensure he understands your medical history/needs and explains things very thoroughly

  • ★ ★ ★ ★ ★

    July 31, 2025

    Verfied Review

    5 out of 5 patient rating

    Good listener, friendly, professional

  • ★ ☆ ☆ ☆ ☆

    April 03, 2025

    Verfied Review

    1 out of 5 patient rating

    Not specific to Charles, but mainly about billing and staff

  • ★ ☆ ☆ ☆ ☆

    April 01, 2025

    Verfied Review

    1 out of 5 patient rating

    Had an appointment and never saw me. Waited over an hour and a half to get labs done. Never followed up about lab results or physical.

  • ★ ★ ★ ★ ★

    April 12, 2025

    Verfied Review

    5 out of 5 patient rating

    the attention and care provided was impressive

  • ★ ★ ★ ★ ★

    January 24, 2025

    Verfied Review

    5 out of 5 patient rating

    Excelente.

  • ★ ★ ★ ★ ★

    January 26, 2024

    Verfied Review

    5 out of 5 patient rating

    He listens, is very interested what I have to say, is knowledgeable, and has my best health in mind when he makes recommendations. Our personalities are compatible.

  • ★ ★ ★ ★ ★

    April 18, 2024

    Verfied Review

    5 out of 5 patient rating

    Mac is pleasant, thorough and gives excellent diagnosis and consistent with qualified referrals

  • ★ ★ ★ ★ ★

    July 31, 2024

    Verfied Review

    5 out of 5 patient rating

    very professional and helpful

  • ★ ★ ★ ★ ★

    June 18, 2024

    Verfied Review

    5 out of 5 patient rating

    Please see previous comments.

  • ★ ★ ★ ★ ★

    July 04, 2024

    Verfied Review

    5 out of 5 patient rating

    Positive experence.

  • ★ ☆ ☆ ☆ ☆

    October 22, 2024

    Verfied Review

    1 out of 5 patient rating

    When he says he will call the place to get your scan done and get your appointment scheduled, but doesn't bother and I have to call and get it done, wasting a week. When those results are sent to him, but he doesn't try to contact you and schedule a follow up appointment. When he doesn't seem to know anything except how to refer you to a specialist. Why are patients wasting their time with him.

  • ★ ★ ★ ★ ★

    September 17, 2024

    Verfied Review

    5 out of 5 patient rating

    Thorough and explained things well.

  • ★ ★ ★ ★ ★

    September 30, 2024

    Verfied Review

    5 out of 5 patient rating

    He is very thorough and explains things so you can understand them