Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William R Pfeiffer, MD

Individual provider Vascular & Interventional Radiology Physician · NPI 1427098029

Dr. William R Pfeiffer, MD is a Diagnostic Radiology in Houston, Texas. Graduated from University of Texas Medical School at Houston in 1981, 45 years ago. Practices with Singleton Associates PA, a 795-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
45
Trained at
University of Texas Medical School at Houston
Licensed in
TX
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

7026 Old Katy Rd Ste 276
Houston, TX 77024-2133
Phone: (713) 621-7436
Fax: (713) 963-9051
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Vascular & Interventional Radiology Physician (primary) Taxonomy 2085R0204X · Licence F9948 (TX)

Record details

NPI number1427098029
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 8, 2006
Last updated in NPPESJuly 18, 2013
Mailing address7026 Old Katy Rd, Suite 276, Houston, TX 77024-2133

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT HOUSTON
Graduated 1981 (45 years in practice)
Group practice Singleton Associates Pa — 795 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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