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

Robert A Grillo Jr., MD

Individual provider Psychiatry Physician · NPI 1770565566

Robert A Grillo Jr., MD is a Psychiatry in Groton, Connecticut. Qualified in 1983, 43 years ago. Practices with The William W Backus Hospital, a 247-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
43
Licensed in
CT
In the registry since
2005
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

1 Wahoo Ave
Groton, CT 06349-2324
Phone: (860) 694-4966
Fax: (860) 694-3388
Show map & directions

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

Additional practice locations (2)

  • 326 Washington St, Norwich, CT 06360-2740 — (860) 889-8331
  • 112 Mansfield Ave, Willimantic, CT 06226-2045 — (860) 456-9116

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 26488 (CT)

Record details

NPI number1770565566
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 17, 2005
Last updated in NPPESJune 20, 2023
Certification dateJune 20, 2023
Mailing address1 Wahoo Ave, Groton, CT 06349-2324

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolOTHER
Graduated 1983 (43 years in practice)
Group practice The William W Backus Hospital — 247 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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