Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ann Arbor Endocrinology and Diabetes Associates, P.C.

Endocrinology, Diabetes & Metabolism Physician in Ypsilanti, MI · enumerated 2006 · authorized official Jeffrey Sanfield, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1750445961

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Registry record

Entity type Organization (Type 2)

Legal business name Ann Arbor Endocrinology and Diabetes Associates, P.C.

Practice address 5333 Mcauley Dr, Reichert Health Bldg Suite 6014, Ypsilanti, MI, 48197

Phone (734) 434-4430

Fax (734) 434-7634

Enumeration date Dec 21, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Jeffrey Sanfield

Title President

Phone (734) 434-4430

Other identifiers

Identifier	Type	State	Issuer
110H161920	Other	MI	BLUE CROSS BLUE SHIELD

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What type of organization is Ann Arbor Endocrinology and Diabetes Associates, P.C.?

Ann Arbor Endocrinology and Diabetes Associates, P.C. is registered in NPPES as a Endocrinology, Diabetes & Metabolism Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.