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

Alex M Geiger, MD, MPH

Individual provider Internal Medicine Physician · NPI 1124530316

Alex M Geiger, MD, MPH practises Internal Medicine in Baltimore, Maryland. Graduated from University of Arizona College of Medicine in 2018, 8 years ago. Practices with Chase Brexton Health Services Inc, a 117-clinician group and works from 3 locations. Licensed in Indiana and Maryland.

Years since qualifying
8
Trained at
University of Arizona College of Medicine
Licensed in
IN, MD
In the registry since
2017
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MPH — Master of Public Health
A graduate degree in population health.

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Practice location Address checks out

1111 N Charles St
Baltimore, MD 21201-5505
Phone: (410) 837-2050
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 811 W 2nd St, Bloomington, IN 47403-2212 — (812) 333-4001
  • 1522 W Morris St, Indianapolis, IN 46221-1629 — (317) 310-3192

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0103178 (MD)
Internal Medicine Physician Taxonomy 207R00000X · Licence 11020024A (IN)
Pediatrics Physician Taxonomy 208000000X · Licence 11020024A (IN)
Pediatrics Physician Taxonomy 208000000X · Licence D0103178 (MD)

Record details

NPI number1124530316
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MPH
Sole proprietorNo
NPI enumeratedOctober 29, 2017
Last updated in NPPESJune 9, 2025
Certification dateJune 9, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolUNIVERSITY OF ARIZONA COLLEGE OF MEDICINE
Graduated 2018 (8 years in practice)
Group practice Chase Brexton Health Services Inc — 117 clinicians
Accepts Medicare assignment Not indicated
Practice locations4 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 $28 1 payment · a meal or drink at a meeting or visit, not a fee
Long term medical supply or device loan $28 1 payment · a device or supply lent for a long period, not cash

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 Chase Brexton Health Services Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 117 clinicians in the practice; 12 are shown here.

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