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

Dr. Pei Fang Sun, MD

Individual provider Internal Medicine Physician · NPI 1225171754

Dr. Pei Fang Sun, MD is an Internal Medicine in Wallingford, Connecticut. Qualified in 1983, 43 years ago. Practices with Pei Sun MD LLC, a 4-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
43
Licensed in
CT
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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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

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 37546 (CT)

Record details

NPI number1225171754
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 15, 2007
Last updated in NPPESAugust 6, 2026
Certification dateAugust 6, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1983 (43 years in practice)
Group practice Pei Sun Md.Llc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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