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

Guillermo E Umpierrez, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1174626063

Guillermo E Umpierrez, MD practises Endocrinology in Atlanta, Georgia. Qualified in 1979, 47 years ago. Practices with Emory Medical Care Foundation Inc, a 996-clinician group and accepts Medicare assignment. Licensed in Georgia.

Years since qualifying
47
Licensed in
GA
In the registry since
2006
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

96 Armstrong St SE Grady Health System - Endocrinology
Atlanta, GA 30303 Not confirmed with CMS for 19 years — call before visiting
Phone: (404) 616-3730
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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 25914 (GA)

Record details

NPI number1174626063
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 6, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1979 (47 years in practice)
Group practice Emory Medical Care Foundation Inc — 996 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 patients31
Services billed 33 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

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.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $20,394 2 payments
Honoraria $5,100 1 payment
Compensation for serving as faculty or as a speaker for a medical education program $2,893 2 payments
Travel and Lodging $2,429 8 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $1,131 18 payments · a meal or drink at a meeting or visit, not a fee
Education $56 1 payment · educational material or training, 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 Emory Medical Care Foundation Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 996 clinicians in the practice; 12 are shown here.

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