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

Dr. Charles E Geyer Jr., MD

Individual provider Internal Medicine Physician · NPI 1891795001

Dr. Charles E Geyer Jr., MD is a Medical Oncology in Houston, Texas. Graduated from Texas Tech University Health Science Center School of Medicine in 1980, 46 years ago. Practices with University of Pittsburgh Physicians, a 4,127-clinician group and accepts Medicare assignment. Licensed in Pennsylvania, Texas and Virginia.

Years since qualifying
46
Trained at
Texas Tech University Health Science Center School of Medicine
Licensed in
PA, TX, VA
In the registry since
2005
Specialties on file
4
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

6445 Main St Fl 24
Houston, TX 77030-1502
Phone: (713) 441-9948
Fax: (713) 441-8791
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence F6662 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence F6662 (TX)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 0101254387 (VA)
Medical Oncology Physician Taxonomy 207RX0202X · Licence MD419017 (PA)

Record details

NPI number1891795001
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 29, 2005
Last updated in NPPESJune 23, 2020
Certification dateJune 23, 2020

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolTEXAS TECH UNIVERSITY HEALTH SCIENCE CENTER SCHOOL OF MEDICINE
Graduated 1980 (46 years in practice)
Group practice University Of Pittsburgh Physicians — 4127 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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