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About

CLS Health is a private, multi-specialty hospital and health care group based in Webster, Texas, serving Greater Houston. They operate 32 offices in the United States, offering a wide range of services including nephrology among many specialties (cardiology, endocrinology, pulmonary, rheumatology, neurology, urology, and more). They provide same-day appointments with primary care doctors or specialists and have a presence in multiple campuses, including Clear Lake. For nephrology-specific care in Clear Lake/League City areas, CLS Health offers nephrology services within its multi-specialty network and lists nephrology among its specialties. If you’re seeking a nephrologist near Clear Lake or Webster, CLS Health is a relevant option with multiple Texas locations and a dedicated nephrology capability. Contact: (281) 724-1860 or visit cls.health for appointments and physician directories.

Clinic Type

Nephrology

Address

600 N. Kobayashi Rd., Ste. 312, Webster, TX 77598

Phone

(281) 724-8296

Email

status@healthmark-group.com

Opening Hours

8:30 AM - 4:00 PM

Services Offered

  • Nephrology
  • Kidney disease care
  • Hypertension management
  • Kidney stones
  • Electrolyte disorders
  • Chronic kidney disease management
  • Inpatient/outpatient nephrology services
  • Advanced diagnostics
  • Personalized treatment plans

Team

  • Abdul Abdellatif — Nephrologist
  • Katafan Achkar — Nephrologist
  • Jose J. Perez — Nephrologist
  • Jayanti Venkatesan — Nephrologist
  • Jingyin Yan — Nephrologist

Insurance & Payment

  • Aetna
  • Ambetter Superior Health
  • Blue Cross Blue Shield
  • Community Health Choice
  • Humana
  • United Healthcare

Don't see your insurance listed? We may still accept it. Please call to verify coverage.

Insurance, Self-pay

Languages Spoken

  • English

FAQs

What are the clinic hours?

8:30 AM - 4:00 PM

What is the address?

600 N. Kobayashi Rd., Ste. 312, Webster, TX 77598

What is the main contact number?

(281) 724-8296

Photos

What Patients Say

Overall sentiment across review platforms: very positive

  • CLS Health (Nephrology Clear Lake location page): 4.67 (27 reviews) for provider Achkar MD (27 reviews)
  • CLS Health (Clear Lake comprehensive care clinic page): 4.82 (198 reviews), 4.71 (99 reviews), 4.67 (27 reviews) (clinic/Nephrology-related ratings shown)
  • Providers.CLS.Health (Dr. Abdul Abdellatif): 4.9 out of 5 (patient satisfaction rating) (135 ratings, reviews (as shown))
  • Healthgrades (Dr. Katafan Achkar): 5.0 star rating (7 reviews)
  • Providers.CLS.Health (Dr. Jose J. Perez): 5.0 out of 5 (patient satisfaction rating) (5 ratings, reviews)

Patients praise

  • Thorough explanations and taking time to answer questions
  • Friendly, positive, and helpful staff
  • Low/ minimal wait times and prompt being seen
  • Professional, caring bedside manner; patients recommend the doctors
  • Overall high satisfaction/patient ratings at CLS Health nephrology locations

Common complaints

  • No specific negative complaints were surfaced in the provided search snippets (may exist elsewhere but not shown in sources provided).

"“Dr Abdul was very welcoming... He explained things thoroughly... Our wait time was minimal as well.”"

Loc8NearMe review snippet for CLS Health Webster Nephrology Clinic

"“I took my father to Dr. abdul abdellatif... The doctor was professional, caring, and took time to explain the treatment and answer our questions.”"

Providers.CLS.Health page for Dr. Abdul Abdellatif (review excerpt)

"“Dr. Jose J Perez was excellent at listening... He took his time with me and I did not feel rushed. I was seen quickly when I arrived.”"

Providers.CLS.Health page for Dr. Jose J. Perez (review excerpt)

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.

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