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 practises 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

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients13
Services billed 39 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $9,396 7 payments · travel or lodging paid or reimbursed, such as to attend a conference
Consulting Fee $4,868 4 payments
Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $3,000 1 payment
Food and Beverage $453 7 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University of Pittsburgh Physicians

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 4127 clinicians in the practice; 12 are shown here.

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