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

Individual provider Cardiovascular Disease Physician · NPI 1538279583

Tao-Nan CHI, MD is an Internal Medicine in Norwalk, Connecticut. Qualified in 1970, 56 years ago. Practices with Hartford Healthcare Medical Group Specialists PLLC, a 1,537-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
56
Licensed in
CT
In the registry since
2006
Specialties on file
2
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

761 Main Ave Ste 201
Norwalk, CT 06851-1080
Phone: (203) 838-4000
Fax: (203) 845-9535
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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 019430 (CT)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 019430 (CT)

Record details

NPI number1538279583
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 30, 2006
Last updated in NPPESMay 21, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOTHER
Graduated 1970 (56 years in practice)
Group practice Hartford Healthcare Medical Group Specialists Pllc — 1537 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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