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

Dr. Alyssa Joan Mancini, MD

Individual provider Internal Medicine Physician · NPI 1629562368

Dr. Alyssa Joan Mancini, MD practises Endocrinology in Stony Brook, New York. Qualified in 2018, 8 years ago. Practices with Stony Brook Internists University Faculty Practice Corporation, a 428-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts and New York.

Years since qualifying
8
Licensed in
MA, NY
In the registry since
2018
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

101 Nicolls Rd Hsc 16-047
Stony Brook, NY 11794
Phone: (631) 444-0580
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 55 Fruit St, Boston, MA 02114-2696 — (617) 724-0287
  • 330 Brookline Ave, Boston, MA 02215-5491 — (617) 667-7000

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 321878 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 286411 (MA)
Hospitalist Physician Taxonomy 208M00000X · Licence 286411 (MA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 276092 (MA)

Record details

NPI number1629562368
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 17, 2018
Last updated in NPPESJune 30, 2025
Certification dateJune 30, 2025

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Stony Brook Internists University Faculty Practice Corporation — 428 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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 $27 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 Stony Brook Internists University Faculty Practice Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 428 clinicians in the practice; 12 are shown here.

Other providers in Stony Brook