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

Glenn Michael Siegel, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1437140514

Glenn Michael Siegel, MD is an Endocrinology in Norwalk, Connecticut. Graduated from Icahn School of Medicine at Mount Sinai in 2001, 25 years ago. Practices with Hartford Healthcare Medical Group Specialists PLLC, a 1,537-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
25
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
CT
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

761 Main Ave Ste 201
Norwalk, CT 06851-1080
Phone: (203) 838-4000
Fax: (203) 845-9535
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 044239 (CT)

Record details

NPI number1437140514
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 28, 2005
Last updated in NPPESMarch 29, 2011

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 2001 (25 years in practice)
Group practice Hartford Healthcare Medical Group Specialists Pllc — 1537 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

Other providers in Norwalk