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

Mary Angeli Del Rosario Lock, MD

Individual provider Internal Medicine Physician · NPI 1174948905

Mary Angeli Del Rosario Lock, MD practises Internal Medicine in Brooklyn, New York. Qualified in 2011, 15 years ago. Practices with Quantum Healthcare Medical Associates Inc, a 109-clinician group and accepts Medicare assignment. Licensed in Nevada, New York and Wyoming.

Years since qualifying
15
Licensed in
NV, NY, WY
In the registry since
2014
Specialties on file
4
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

374 Stockholm St
Brooklyn, NY 11237-4006
Phone: (718) 963-7585
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 16333 (NV)
Internal Medicine Physician Taxonomy 207R00000X · Licence 16333 (NV)
Internal Medicine Physician Taxonomy 207R00000X · Licence 17998C (WY)
Hospitalist Physician Taxonomy 208M00000X · Licence 280588 (NY)

Record details

NPI number1174948905
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 4, 2014
Last updated in NPPESJune 3, 2025
Certification dateJune 3, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Quantum Healthcare Medical Associates Inc — 109 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients130
Services billed 145 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Quantum Healthcare Medical Associates Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 109 clinicians in the practice; 12 are shown here.

Other providers in Brooklyn