Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Timothy Mariano, MD, PHD

Individual provider Psychiatry Physician · NPI 1366737280

Dr. Timothy Mariano, MD, PHD is a Psychiatry Physician in Providence, Rhode Island. Licensed in Massachusetts and Rhode Island. Registered with an NPI since 2011.

Licensed in
MA, RI
In the registry since
2011
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

830 Chalkstone Ave
Providence, RI 02908-4734
Phone: (401) 273-7100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence MD14597 (RI)
Psychiatry Physician Taxonomy 2084P0800X · Licence 263908 (MA)

Record details

NPI number1366737280
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJune 20, 2011
Last updated in NPPESNovember 14, 2025
Certification dateNovember 14, 2025

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