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

Hannah De Groot, MD

Individual provider Hospitalist Physician · NPI 1093133357

Hannah De Groot, MD practises Internal Medicine in White Plains, New York. Graduated from University of Maryland School of Medicine in 2014, 12 years ago. Practices with Westchester Medical Group, PC, a 410-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
12
Trained at
University of Maryland School of Medicine
Licensed in
NY
In the registry since
2014
Specialties on file
2
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

210 Westchester Ave
White Plains, NY 10604
Phone: (914) 682-6532
Fax: (914) 681-5260
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 601 Elmwood Ave, Rochester, NY 14642-0001 — (585) 275-2222

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 288667 (NY)
Hospitalist Physician Taxonomy 208M00000X · Licence 288667 (NY)

Record details

NPI number1093133357
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 3, 2014
Last updated in NPPESJuly 26, 2018

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Westchester Medical Group, P.C — 410 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients294
Services billed 424 a service is one billed item, such as a visit, a test or a procedure
Average patient age81

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.

Food and Beverage $22 1 payment · 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 Westchester Medical Group, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 410 clinicians in the practice; 12 are shown here.

Other providers in White Plains