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

Alexander Loreck

Individual provider Internal Medicine Physician · NPI 1073045530

Alexander Loreck practises Internal Medicine in Brooklyn, New York. Qualified in 2017, 9 years ago. Practices with Sinai Hospital of Baltimore, Inc, a 372-clinician group and works from 3 locations. Licensed in Maryland and New York.

Years since qualifying
9
Licensed in
MD, NY
In the registry since
2017
Specialties on file
3
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Practice location Address checks out

506 6th St
Brooklyn, NY 11215-3609
Phone: (718) 780-3000
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Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 2150 Pennsylvania Avenue, Nw, Washington, DC 20037 — (202) 741-3000
  • 2401 W Belvedere Ave, Baltimore, MD 21215-5216 — (410) 601-0594

Specialties & licences

Hospice and Palliative Medicine (Internal Medicine) Physician (primary) Taxonomy 207RH0002X · Licence 316437 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence D89696 (MD)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1073045530
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedApril 3, 2017
Last updated in NPPESJune 5, 2023
Certification dateJune 5, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Sinai Hospital Of Baltimore, Inc — 372 clinicians
Accepts Medicare assignment Not indicated

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 patients248
Services billed 650 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 $438 17 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Sinai Hospital of Baltimore, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 372 clinicians in the practice; 12 are shown here.

Other providers in Brooklyn