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

Katherine Nau Grieco, DO

Individual provider Family Medicine Physician · NPI 1396940722

Katherine Nau Grieco, DO is an Addiction Medicine in Hartford, Connecticut. Graduated from University of New England, College of Osteo Medicine in 2005, 21 years ago. Practices with Hartford Hospital, a 1,040-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
21
Trained at
University of New England, College of Osteo Medicine
Licensed in
CT
In the registry since
2007
Specialties on file
2
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

200 Retreat Avenue Hartford Hospital Psychiatry Dept
Hartford, CT 06106-3309
Phone: (484) 529-7465
Show map & directions

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

Additional practice locations (1)

  • 360 State St Apt 709, New Haven, CT 06510-3602 — (484) 529-7465

Specialties & licences

Addiction Medicine (Family Medicine) Physician (primary) Taxonomy 207QA0401X · Licence 048852 (CT)
Family Medicine Physician Taxonomy 207Q00000X · Licence 048852 (CT)

Record details

NPI number1396940722
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorYes
NPI enumeratedJune 16, 2007
Last updated in NPPESSeptember 25, 2020
Certification dateSeptember 25, 2020

Medicare enrollment

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

Medicare specialtyADDICTION MEDICINE
Also practisesFAMILY PRACTICE
Medical schoolUNIVERSITY OF NEW ENGLAND, COLLEGE OF OSTEO MEDICINE
Graduated 2005 (21 years in practice)
Group practice Hartford Hospital — 1040 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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