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

Pei Sun MD LLC

Organization Primary Care Clinic/Center · NPI 1831412899

Pei Sun MD LLC is a Primary Care Clinic/Center in Wallingford, Connecticut. Licensed in Connecticut. Registered with an NPI since 2010.

Licensed in
CT
In the registry since
2010
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

850 N Main Street Ext BUILDING1 A3
Wallingford, CT 06492-2400
Phone: (203) 269-4353
Fax: (203) 269-4606
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Primary Care Clinic/Center (primary) Taxonomy 261QP2300X · Licence 037546 (CT)

Record details

NPI number1831412899
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Pei Sun — Owner · (203) 269-4353
NPI enumeratedMarch 4, 2010
Last updated in NPPESApril 4, 2011
Mailing address850 N Main Street Ext, Building1,A3, Wallingford, CT 06492-2400

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