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

Matthew R Mannini, DO

Individual provider Internal Medicine Physician · NPI 1386699577

Matthew R Mannini, DO practises Internal Medicine in Brewster, New York. Graduated from Kansas City University of Physicians and Surgeons in 1987, 39 years ago. Practices with Optum Medical Care PC, a 1,018-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
39
Trained at
Kansas City University of Physicians and Surgeons
Licensed in
NY
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

185 Route 312
Brewster, NY 10509-2337
Phone: (914) 278-7000
Fax: (845) 278-2208
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 175390 (NY)

Record details

NPI number1386699577
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 24, 2006
Last updated in NPPESNovember 18, 2016

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolKANSAS CITY UNIVERSITY OF PHYSICIANS AND SURGEONS
Graduated 1987 (39 years in practice)
Group practice Optum Medical Care Pc — 1018 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 patients512
Services billed 4,471 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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. Those with a page here are linked.

Colleagues at Optum Medical Care PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1018 clinicians in the practice; 12 are shown here.

Other providers in Brewster