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

Karen F Giardino, MDENDOCRINOLOGIST

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1023175361

Karen F Giardino, MDENDOCRINOLOGIST practises Endocrinology in Williamsville, New York. Graduated from State University of New York at Buffalo School of Medicine in 1985, 41 years ago. Practices with Preferred Physician Care PC, a 24-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
41
Trained at
State University of New York at Buffalo School of Medicine
Licensed in
NY
In the registry since
2007
Specialties on file
2
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Practice location Address checks out

5530 Sheridan Dr 1B
Williamsville, NY 14221-3730 Not confirmed with CMS for 15 years — call before visiting
Phone: (716) 636-8357
Fax: (716) 636-1369
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 164685-1 (NY)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence 1646851 (NY)

Record details

NPI number1023175361
Entity typeIndividual (Type 1)
GenderFemale
Credentials MDENDOCRINOLOGIST
Sole proprietorYes
NPI enumeratedJanuary 3, 2007
Last updated in NPPESSeptember 21, 2011

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Medical schoolSTATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Graduated 1985 (41 years in practice)
Group practice Preferred Physician Care Pc — 24 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 patients38
Services billed 65 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 $1,909 102 payments · a meal or drink at a meeting or visit, not a fee
Education $43 1 payment · educational material or training, not a fee
Long term medical supply or device loan $20 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Kaleida Health Hospital · Buffalo, NY

Colleagues at Preferred Physician Care PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 24 clinicians in the practice; 12 are shown here.

Other providers in Williamsville