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

Individual provider Gastroenterology Physician · NPI 1689598559

Dr. Crystal Sixian Liu, MD is a Gastroenterology Physician in New York, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2026
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Partly verified

Some contact details are missing from the federal record.

One Gustave L Levy Pl
New York, NY 10029
Phone: (212) 241-4299
Fax: (212) 731-5220
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence P143805 (NY)

Record details

NPI number1689598559
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 5, 2026
Last updated in NPPESAugust 5, 2026

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