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

Jonathan J Fillmore, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1578592713

Jonathan J Fillmore, MD is an Endocrinology in Trumbull, Connecticut. Graduated from Js Weill Medical College, Cornell University in 1997, 29 years ago. Practices with Prospect CT Medical Foundation Inc, a 289-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
29
Trained at
Js Weill Medical College, Cornell University
Licensed in
CT
In the registry since
2006
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

5520 Park Ave Ste 306
Trumbull, CT 06611-3463
Phone: (203) 373-7388
Fax: (203) 373-7472
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 039461 (CT)

Record details

NPI number1578592713
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 1, 2006
Last updated in NPPESDecember 9, 2009
Mailing address5520 Park Ave, Suite 306, Trumbull, CT 06611-3463

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Medical schoolJS WEILL MEDICAL COLLEGE, CORNELL UNIVERSITY
Graduated 1997 (29 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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