Doctor Profile

Nephrology · Nephrology

Mohammad A. Zia

MD · Nephrology
19502 MCKAY DR
STE. 200
Humble, TX 77338
✓ Accepts Medicare 🎓 37+ Years Practicing
758
Medicare Patients / yr
12
Procedures Billed
37
Years Practicing
3
Hospital Affiliations
Data Source: Identity from NPPES (2026). Procedure & patient volume from CMS Medicare Provider Utilization & Payment Data (2023). Hospital affiliations from CMS Physician Compare. We display publicly reported data — no personal information required to view any of it.
Reviewed by: Wes Ward, Founder & Data Lead • View our methodology

Important: We are not affiliated with Medicare, CMS, or Mohammad A. Zia's practice. This page displays publicly available CMS data to help you research Medicare providers. We do not sell insurance or represent any insurance company. For official enrollment and complete plan information, visit Medicare.gov or call 1-800-MEDICARE.

Medicare Plans That Cover Dr. Zia

See which plans Dr. Zia accepts

We're pulling plan acceptance data directly from insurance carrier provider directories. Until that feed is live for Texas, the fastest way to find a Medicare plan that covers Dr. Zia is to compare every Medicare Advantage and Part D plan available near 77338, TX — the Nephrology's office can quickly confirm which of the top local plans they accept.

Compare Medicare Plans near 77338, TX →

Or call the office at to confirm acceptance directly.

What Dr. Zia Does

Dr. Zia served 758 Medicare patients across 1,811 services in the latest CMS reporting year. That's 33% above the average Nephrology in Texas (572 patients across 778 doctors).

ProcedureServicesMedicare Patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)611181
Hemodialysis procedure with physician evaluation (90935)29979
Dialysis services, 4 or more physician visits per month (20 years or older) (90960)22665
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)15774
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)146122

How to read this: "Services" are the total times Dr. Zia billed Medicare for each procedure in the latest reporting year. "Patients" counts unique Medicare beneficiaries. Procedures are shown in plain English; the underlying HCPCS codes are available on request.

Hospital Affiliations

Dr. Zia is affiliated with 3 hospitals according to CMS Physician Compare. Below are the 3 hospitals with full quality profiles on our site. Hospital network status depends on your Medicare Advantage plan — always verify before enrolling.

Hca Houston Healthcare Northwest

Houston, TX
★★★☆☆ 3/5 CMS Rating

Memorial Hermann Northeast Hospital

Humble, TX
★★★☆☆ 3/5 CMS Rating

Hca Houston Healthcare Kingwood

Kingwood, TX
★★☆☆☆ 2/5 CMS Rating

Practice Location & Telehealth Readiness

Dr. Zia practices at the address below. If you're evaluating Medicare coverage, location matters for in-network access and — when Dr. Zia offers telehealth — broadband availability at your home matters for virtual visits.

Address: 19502 MCKAY DR, STE. 200, Humble, TX 77338
Phone:

Area Safety Grade

D+

Block-level crime analysis from CrimeGrade.org.

Practice Accessibility

35 min

Average commute time in this zip · 85% of residents drive to work. Practical context for patients deciding whether to make the trip. See the full neighborhood profile at BestNeighborhood.org.

Telehealth Readiness

92.4570

Households with fiber broadband — important for reliable virtual visits. Check your address at ISPReports.org.

Get directions on Google Maps →

Other Nephrology Doctors near 77338, TX

If Dr. Zia isn't accepting new patients or isn't in your plan's network, these are the closest nephrology doctors near 77338, TX:

DoctorSpecialtyMedicare Patients / yrDistance
Anthony K. HansonNephrology7591.3 mi
Achi P. CharyNephrology3711.4 mi
John T. NguyenNephrology9692.0 mi
Brett W. StephensNephrology7932.0 mi
Sowmya PuthalapattuNephrology8022.0 mi

View all nephrology doctors near 77338, TX →

How to Use This Information

Choosing a Medicare plan that covers Dr. Zia takes three steps:

  • Verify network status. Medicare Advantage plans each have their own provider networks. The same doctor may be in-network for one plan and out-of-network for another. Compare all Medicare plans near 77338, TX →
  • Confirm directly with the office. Call Dr. Zia's office at to verify they're accepting new patients and which plans they currently accept. Use our printable question list →
  • Check enrollment windows. You can only switch Medicare plans during specific periods. Missing a deadline can cost you a year of coverage. Review enrollment dates →
Compare Medicare Plans near 77338, TX → All Doctors near 77338, TX

Mohammad A. Zia: Common Questions

Does Dr. Zia accept Medicare?
Yes. Dr. Zia is enrolled with Medicare and listed in the CMS Provider Enrollment, Chain, and Ownership System (PECOS). Whether a specific Medicare Advantage plan covers Dr. Zia depends on that plan's provider network. Compare Medicare plans near 77338, TX →
Where is Dr. Zia's office?
Dr. Zia practices at 19502 MCKAY DR, STE. 200, Humble, TX 77338. Phone: .
What Medicare plans does Dr. Zia accept?
Original Medicare (Parts A & B) is accepted. Medicare Advantage plan acceptance varies by carrier and plan year. Call the office at to confirm your specific plan is accepted, or compare all Medicare plans near 77338, TX to see available options.
Does Dr. Zia offer telehealth visits?
CMS does not currently list Dr. Zia as offering telehealth. Call the office at to confirm whether virtual visits are available.
How experienced is Dr. Zia?
Dr. Zia graduated in 1989 and has been practicing for approximately 37 years. In the latest CMS reporting year, Dr. Zia treated 758 Medicare patients across 12 distinct procedure types.
How do I know if Dr. Zia is in-network for my Medicare plan?
Network status varies by plan. The best verification steps: (1) check your plan's provider directory at the carrier's website, (2) call the office at and ask which plans they currently accept, and (3) call the number on the back of your Medicare card. Print our doctor questions checklist →

About the Reviewer

Wes Ward

Wes Ward

Founder & Data Lead

Wes Ward reviews all doctor profiles and methodology for data accuracy. Every Medicare provider page on this site — including the utilization statistics, hospital affiliations, and geocoded practice address — goes through his data-validation pipeline before publication. We display only publicly available CMS data; you never need to enter personal information to see any of it.

With 25+ years in data analytics — including work with highly regulated genomic data at Ancestry.com — Wes brings enterprise-level rigor to healthcare transparency. He is also a co-founder of BestNeighborhood.org (neighborhood data), CrimeGrade.org (block-level safety analytics), and ISPReports.org (broadband availability for telehealth). Those sister sites power the location and telehealth-readiness context on this page.

View full profile →LinkedIn

Data sources: CMS NPPES (2026), CMS Medicare Provider Utilization & Payment Data (2023), CMS Physician Compare, CrimeGrade.org, BestNeighborhood.org, ISPReports.org. This page is for informational purposes only. Always verify coverage directly with the plan and practice. Read our full methodology →Privacy policy

Medicare Resources

Choosing the right Medicare plan involves more than just doctor coverage. These guides help you evaluate the full picture:

Medicare Plans for Conditions Treated by Nephrology Specialists

See which Medicare plans score highest for conditions commonly managed by this specialty in 77338, TX:

Does your Medicare plan cover Dr. Zia?

Compare Plans near 77338, TX →