Ryan Blair Kieser, MD

Hematologist-oncologist in Houston, Texas · NPI 1033568795

Ryan Kieser is one of 182 hematologist-oncologists practicing in Houston, Texas. Ryan Kieser practices with Houston Methodist Specialty Physicians and TMH Physician Associates PLLC.

Registry record (NPPES)

NPI: 1033568795
Type: Type 1 · Individual
Primary taxonomy: Internal Medicine, Hematology & Oncology · 207RH0003X
Address on file: 6445 Main St Fl 24
Houston, TX 77030-1502
(713) 441-9948
Enumerated: Jun 3, 2016
Record last updated: May 23, 2023
License states listed: TX

Medicare (CMS)

Enrollment: Medicare-enrolled in TX
Hematology/Oncology
Revalidation due: No date set by CMS

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Part D prescribing
Procedure volumes by CPT code
Group affiliations and colleagues
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Practice locations

6445 Main St
Houston, TX 77030
6445 Main St Opc
Houston, TX 77030
6445 Main St Suite 2500
Houston, TX 77030
(713) 441-3150
6565 Fannin St
Houston, TX 77030
6565 Fannin St Main 577 Methodist Acad Med Assoc
Houston, TX 77030
(713) 441-0428
6565 Fannin St Suite 520
Houston, TX 77030
7575 San Felipe St Suite 155
Houston, TX 77063
(713) 266-9955
4710 Bellaire Blvd
Bellaire, TX 77401
(713) 363-9411
16605 Southwest Fwy
Sugar Land, TX 77479
(281) 275-0800
16605 Southwest Fwy 400 Mob3 Methodist Family Medicine Group
Sugar Land, TX 77479
(281) 275-0800
16605 SW Fwy 410 Methodist Diag Card Of Houston
Sugar Land, TX 77479
(281) 274-0148

More hematologist-oncologists in Houston

Updated August 2026. Practice locations and specialty come from the CMS Doctors and Clinicians file, the registry record from NPPES, and enrollment from CMS Medicare enrollment files. NPI records are corrected at the source, through NPPES.