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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Maryann Ellen Lehmann, DDS

General Practice Dentistry in Darien, CT · enumerated 2005 · practices at Melanie Sorensen, Lcsw, LLC.

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

National Provider Identifier

1588669717

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Registry record

Entity type Individual (Type 1)
Name Dr. Maryann Ellen Lehmann
Credential DDS
Sex Female
Practice address Darien, CT, 06820
Phone (203) 655-0021
Fax (203) 662-0709
Enumeration date Jun 15, 2005
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 007128 (CT) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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

Where does Maryann Lehmann practice?
The practice location on file with NPPES is in Darien, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Maryann Lehmann?
The National Provider Identifier (NPI) for Maryann Lehmann is 1588669717, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.