Sayed Shayan Ahmed, M.D
Nephrology (CMS) · Cypress, TX
At a glance
21212 Northwest Fwy Ste 355, Cypress, TX 77429-5890
NPPES record updated Jan 21, 2020. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
21212 Northwest Fwy Ste 355Cypress, TX 77429-5890
Additional reported practice locations
902 Frostwood Dr Ste 165Houston, TX 770242449
Phone: 7134649100
Fax: 7134686183
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2012
- CMS specialties
- Nephrology
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Hca Houston Healthcare Kingwood Kingwood, TX
- Houston Methodist Cypress Hospital Cypress, TX
- Houston Methodist Willowbrook Hospital Houston, TX
- Memorial Hermann - Texas Medical Center Houston, TX
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $299.14 |
| Education | $18.85 |
Reporting companies
| Company | Amount |
|---|---|
| ASTRAZENECA PHARMACEUTICALS LP | $96.83 |
| BAYER HEALTHCARE PHARMACEUTICALS INC. | $61.54 |
| CALLIDITAS THERAPEUTICS US INC. | $38.42 |
| NOVARTIS PHARMACEUTICALS CORPORATION | $31.42 |
| VIFOR PHARMA, INC. | $28.47 |
| TRAVERE THERAPEUTICS, INC. | $28.40 |
| BOEHRINGER INGELHEIM PHARMACEUTICALS, INC. | $18.85 |
| AMGEN INC. | $14.06 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Nephrology (CMS)
- Taxonomy code
- 207RN0300X
- Enumeration date
- May 9, 2013
- Record updated
- Jan 21, 2020
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D
Reported taxonomies and licenses
207R00000X
License reported: R4800 TX
207RN0300X · Primary
License reported: R4800 TX
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
21212 Northwest Fwy Ste 355Cypress, TX 77429-5890
- Phone
- (281) 890-9944
- Fax
- (281) 890-9955
Mailing address
411 PARK GROVE LN SUITE 310KATY, TX 77450
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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