Alex P Nguyen, M. D.
Hematology/Oncology (CMS) · Houston, TX
At a glance
925 Gessner, Houston, TX 77024-2545
NPPES record updated Mar 18, 2026. 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
925 Gessner Suite 600,650Houston, TX 77024-2545
Additional reported practice locations
2130 W Holcombe Blvd Fl 10Houston, TX 770303306
Phone: 7136000900
Fax: 7136000070 1920 Country Place Pkwy Ste 370
Pearland, TX 775841962
Phone: 8323331400
Fax: 8323331499 27700 Northwest Freeway
Suite 400,425
Cypress, TX 774336767
Phone: 8323773260
Fax: 8885065887 13215 Dotson Rd Ste 340
Houston, TX 770704535
Phone: 2814778600
Fax: 2814778577 1631 North Loop W Ste 410
Houston, TX 770081530
Phone: 7138029000
Fax: 7138022701 7121 S. Padre Island Dr
Suite 102,101,119
Corpus Christi, TX 784124938
Phone: 3616966000
Fax: 3619924120 10405 Katy Fwy Ste 120
Houston, TX 770241121
Phone: 8323331474
Fax: 8323331475 3333 Bayshore Blvd Ste 320
Pasadena, TX 775041950
Phone: 8328568965
Fax: 8328568966 7789 Southwest Fwy Ste 460
Houston, TX 770741841
Phone: 7137780300
Fax: 7137780303 17520 W Grand Pkwy S Ste 460
Sugar Land, TX 774794983
Phone: 2814915511
Fax: 2814915513 9150 Main St Ste A3
Houston, TX 770253848
Phone: 7136308181
Fax: 7138389708 18955 N Memorial Dr Ste 530
Humble, TX 773384269
Phone: 3463621670
Fax: 3463621675 2555 Gulf Fwy S Ste 700
League City, TX 775736742
Phone: 8328278002
Fax: 8328278003 10405 Katy Fwy Ste 150E
Houston, TX 770241165
Phone: 7137229660
Fax: 7137229664 802 Enterprise Blvd Ste 808
Rockport, TX 783824346
Phone: 3616966000
Fax: 3619924120 11920 Astoria Blvd Ste 150
Houston, TX 770896097
Phone: 2814816688
Fax: 2814810870 23960 Katy Fwy Ste 325
Katy, TX 774940886
Phone: 2815780201
Fax: 2815780217
Education & affiliations
- Medical / professional school
- University Of Texas Medical School At Houston
- Graduation year
- 1999
- CMS specialties
- Hematology/Oncology
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Memorial Hermann - Texas Medical Center Houston, TX
- Memorial Hermann Katy Hospital Katy, TX
- Memorial Hermann Memorial City Hospital Houston, TX
- Memorial Hermann Sugar Land Hospital Sugar Land, 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 | $2,645.73 |
| Grant | $235.20 |
Reporting companies
| Company | Amount |
|---|---|
| NOVARTIS PHARMACEUTICALS CORPORATION | $316.21 |
| ABBVIE INC. | $247.83 |
| MERCK SHARP & DOHME LLC | $207.49 |
| ASTRAZENECA PHARMACEUTICALS LP | $165.68 |
| BOSTON SCIENTIFIC CORPORATION | $156.96 |
| GILEAD SCIENCES, INC. | $149.74 |
| JANSSEN BIOTECH, INC. | $115.24 |
| STRYKER CORPORATION | $111.03 |
| Other reporting companies | $1,410.75 |
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
- Hematology/Oncology (CMS)
- Taxonomy code
- 207RH0003X
- Enumeration date
- Mar 31, 2006
- Record updated
- Mar 18, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M. D.
Reported taxonomies and licenses
207RH0003X · Primary
License reported: L8452 TX
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
925 GessnerSuite 600,650
Houston, TX 77024-2545
- Phone
- (713) 827-9525
- Fax
- (713) 468-3561
Mailing address
PO BOX 676638DALLAS, TX 752676638
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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