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

Dr. Michael John Granieri, DO

Individual provider Internal Medicine Physician · NPI 1730767229

Dr. Michael John Granieri, DO is an Internal Medicine in Waterbury, Connecticut. Graduated from Alabama College of Osteopathic Medicine in 2021, 5 years ago. Practices with Prospect CT Medical Foundation Inc, a 289-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
5
Trained at
Alabama College of Osteopathic Medicine
Licensed in
CT
In the registry since
2021
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

64 Robbins St
Waterbury, CT 06708-2600
Phone: (516) 574-3807
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 55 Arch St Ste 1b, Akron, OH 44304-1436 — (330) 375-3315

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 77254 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1730767229
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedMarch 29, 2021
Last updated in NPPESSeptember 17, 2024
Certification dateSeptember 17, 2024
Mailing address64 Robbins St, Waterbury, CT 06708-2600

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolALABAMA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2021 (5 years in practice)
Group practice Prospect Ct Medical Foundation Inc — 289 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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