Baylor Scott & White Primary Care

Internal Medicine • Lewisville, TX

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About

Internal Medicine

400 W Lyndon B Johnson Fwy Ste 200, Irving, TX, 75063

972.724.1707

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Not published — contact the clinic to confirm hours.

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Not accepting walk-ins

Not accepting walk-ins

Overall sentiment across review platforms: positive

Healthgrades (Dr. Daniel Sone, DO): 4.8 out of 5 star rating (147 reviews (132 written))
Healthgrades (Dr. Lowell Koppel, MD): 4.5 out of 5 star rating (114 reviews (94 written))
Healthgrades (Dr. Phillip Disraeli, MD): 4.7 out of 5 star rating (200 reviews (167 written))
WebMD (Dr. Shermin Sayani, MD): 5.0 out of 5 average rating (26 ratings/reviews)
U.S. News (Dr. Lowell B. Koppel): 5 out of 5 patient experience rating (289 total ratings (129 within last 12 months))

Patients praise

Common complaints

Some reports of longer wait times
Office/staff interactions can be rude or dismissive in at least one practice review
Mixed mentions of administrative/coverage issues (e.g., office closed when needing doctor)

""She is very good Doctor.she never rush take her time to listen my problems""

— WebMD review snippet for Dr. Shermin Sayani

""Friendly and professional staff. Dr Koppel listens and it's great service!""

— Healthgrades review snippet for Dr. Lowell Koppel

""Patients say the provider and entire office staff are caring, informative, and professional.""

— Healthgrades summary for Dr. Phillip Disraeli

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026. Own this clinic? Claim or correct this listing.