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

Individual provider Adult Health Nurse Practitioner · NPI 1609852607

Ann F Lillis, ANP is a Nurse Practitioner in Williamsville, New York. Qualified in 1994, 32 years ago. Practices with Gastroenterology Associates LLP, a 28-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
32
Licensed in
NY
In the registry since
2005
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Practice location Address checks out

60 Maple Rd Ste 1
Williamsville, NY 14221-2917
Phone: (716) 626-5250
Fax: (716) 332-2218
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence F301173 (NY)

Record details

NPI number1609852607
Entity typeIndividual (Type 1)
GenderFemale
Credentials ANP
Sole proprietorNo
NPI enumeratedDecember 21, 2005
Last updated in NPPESDecember 6, 2013

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1994 (32 years in practice)
Group practice Gastroenterology Associates Llp — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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