Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Geoffrey A Geiger, MD

Individual provider Radiation Oncology Physician · NPI 1285836619

Geoffrey A Geiger, MD practises Hematology/Oncology in Covina, California. Graduated from Pennsylvania State University College of Medicine in 2007, 19 years ago. Practices with The Oncology Institute Ca, a Professional Corporation, a 114-clinician group and accepts Medicare assignment. Licensed in California, Florida and Pennsylvania.

Years since qualifying
19
Trained at
Pennsylvania State University College of Medicine
Licensed in
CA, FL, PA
In the registry since
2007
Specialties on file
3
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

554 E San Bernardino Rd Ste 105
Covina, CA 91723-1748
Phone: (626) 331-6866
Fax: (626) 331-6773
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence G193306 (CA)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence MD439170 (PA)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence ME137894 (FL)

Record details

NPI number1285836619
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 5, 2007
Last updated in NPPESApril 29, 2024
Certification dateApril 29, 2024

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolPENNSYLVANIA STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice The Oncology Institute Ca, A Professional Corporation — 114 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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.

Food and Beverage $99 4 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.

Colleagues at The Oncology Institute Ca, a Professional Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 114 clinicians in the practice; 12 are shown here.

Other providers in Covina