Individual provider · Type 1 NPI

Ryan Stewart Macleod, MD, PhD

Endocrinology, Diabetes & Metabolism Physician · New Haven, CT

NPI number 1700469947 Active

Practice location

20 York St
New Haven, CT 06510-3220

Call (203) 688-4242 Map

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician 207R00000X84735 (CT)
Endocrinology, Diabetes & Metabolism Physician Primary 207RE0101X84735 (CT)

Endocrinology, Diabetes & Metabolism Physician: An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

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About NPI 1700469947

Ryan Stewart Macleod, MD, PhD's National Provider Identifier is 1700469947, issued on May 5, 2021. The primary taxonomy on file is Endocrinology, Diabetes & Metabolism Physician (207RE0101X), and the practice location is in New Haven, CT. The record was last updated on Sep 1, 2026.